choloneressurected agreed mopar was dumb to have the Durango stay instead I prefer the military look of the commander along with the capability I have a 06 limited with the 4.7 Love it it’s my daily/winter car to keep the Stangs up whenever it’s bad out
Quadra-Drive II is the BEST. Took my stock '06 Grand Cherokee Overland Hemi to the San Juan Mountains in Colorado, went places the old times told me to stay away from and then drove 1000 miles back home.
Looks awfully like my wife trying to park. I find it best to shut my eyes and realize its just a vehicle and I have a good body man to fix what she creates. Otherwise great video. Give me a Jeep any day.
If you want to add traction - turn stability control off - that makes it use lockers to the full extent. Otherwise it still lets them slip. I have just checked that.
@yellowcow13: Quadra Trac I: no low range, no lockers, traction control Quadra Trac II: no lockers, traction control Quadra Drive I & II: lockers. II works much better then I. all systems are full time 4x4
I have a 07 commander 5.7 and live in New England ... 11 yrs and haven't been stuck once..... one of the best 4x4 systems out there... JEEP. .... there is no substitute !!!!! #JEEPSTER
Thanks, this and your other videos are very informative. It would be interesting to do side by side comparisons of the Jeep Quadra-drive system to vehicles built by other manufacturers.
@bomfunkportugues: the easiest way is by the label near the gear shifter. the label will say Quadra Trac, or Quadra Drive. Vehicles equiped with Quadra Drive has also a label on the rear door
@TJvigilante: As I mentioned before, the 2005-2010 Grand Cherokees / Commanders (with Quadra Drive) have front and rear "lockers" from Eaton (EGerodiscs). So no open diffs, no traction control. You are posting incorrect information which will confuse others.
@JeepMan19007 I'm aware of this...but they're the only remaining Jeep model sold in America that has solid front and rear axles. The XJ and the WJ were the last non-wrangler with solid front axles.
I just got one of these I wondered why they killed it. The truck in general is a nice jeep, lots of stuff for its age. My other car is a hellcat so gas is definitely nothing new and doesn't ruin the fun for me.
We have a jeep commander Trail rated with the 5.7 Hemi which = Quadra Drive II. You asked how does it know when to un-lock. I'd guess it senses the binding in the drive-line as indication that sufficient traction has been regained and thus, un-locks. Our Armada can sense binding while in "manual" 4X4 HI or LOW modes and has a warning light that comes on unless you're in auto 4X4 mode. In auto 4X4 it unlocks on it's own.
Keith Leeman workeworked in a dealership and between the trucks, the durangos and the jeeps , I don't have one good thing to say about them. Same with all the guys I worked with. But that is our personal mechanical opinions. I'm happy for ya that u seem to have gotten a good one. Have a good one.
Chase Clouser i have two 4.7's, great motors. one is a 2000 dakota with 180k, and 2004 grand cherokee high output with 118k. not a problem out of either....you are aware the 3.7 is based off of the 4.7 right? they have seen their issues, but then so has the newer 5.7 hemi. then if the 4.7 was such a "bastard" motor, why would they run it from 1999-2013?? take care of your stuff and it will return the favor. however on the internet we always see the complainers right?
@ShottsUZJ100: As I already replied earlier, I know they are not 100% lockers, but they act similar as they are able to transfer almost 100% of torque on both wheels. The 2005-2010 Grand Cherokee /Commander have front and rear "lockers" from Eaton (EGerodiscs). The 2011 are only equipped with a rear Eaton locker.
@tanhelmet: if you can see a front differential, but you don't have a shifter, then you have all wheel drive with Quadra Trac I. It works pretty well, but nothing for serious offroading. there are no lockers, just traction control.
@ShottsUZJ100 They are electronically controlled differentials that use a clutch pack, It can up to "lock" 100% automatically. Only the name is ELSD but it doesn't mean anything, no ELCD, LCD is a screen type, lol. It first senses the slip by the sensors in the vehicle, after that it operates the clutch pack, and it can move momentum where it's needed. It's just almost as efficient as 100% manually operated locker like ARB, it does 98% of what the ARB does. So in a very few places you need more.
yea QDII does have a center locking diff just like QTII. I just wanted to stress out that QDII & QTII are very very similar and are both very off road capable. MY commander has QTII and goes through the same trails that my freinds Cherokee w/QDII goes through. It would be nice to post a video of both systems being compared in a offroad scenario so people can see.
Good question. I believe its the locker (another option is TCS, but its too loud and a„hard of a noise for brakes). In sharpe turns when the differential was locked before it always makes these kind of „clicking noises. When you watch the wheels on one axle, you can see the locker release a bit and lock again. How it works exactly I have no clue. If I have some free time, I will open the diff and check to see how it exactly works.
@TJvigilante: No, when the brake light is lit, the brake switch is engaged. In my video my left foot was on the brake pedal. Because of this the light came on but the brakes were not engaged. If I was braking I would have needed higher rpm to keep the vehicle moving. But as you can see, the engine is still at idle. So there was no braking at all. The main thing is: Quadra Drive II = Eaton EGerodiscs differentials = lockers, this is a fact.
@justinsparc Was he not in 4lo ? I'm 100% certain his lockers are engaging. That clicking sound isn't a u-joint someone mentioned earlier. It IS the lockers. It's not made to lock up 100% solid. The clicks are the diffs slipping to prevent binding and breaking shit. An auto-locking Detroit will do the same thing on the highway although there are different components inside that are causing the sounds.
Thanks for the demo. I've heard so many myths and exaggerations about the unibody frame I was half expecting something break loose. It is a dependable frame, or else why would they keep using it? If it can handle two wheels in the air without so much as a sound it is a solid frame IMO. If I see a good deal on one of these I'd buy.
Thank you. I still believe the QDI was ok, but you may be right. I want to make it clear, so I will get a hold of a Jeep WJ, test it and post the results. Check video named: 'Jeep Grand Cherokee climbing onto road' The QD I of this Jeep acts exactly the same way as mine did - slow, with higher rpm and without spinning the second wheel. But as I said I will test it again with different WJ and post a result here.
Great video but. I don't think your truck was not using lockers. Look at 1:10, Your right front wheel when it was off the ground did not move at the same speed as the left. I think the computer was braking the wheels with no grip causing power the go to the other side. Companies are doing this now to save money on locking diffs.
***** I watch the video again and when he was backing up. The right rear wheel was not moving at the same speed as the left. If they was locked, both rear wheels would roll the same.
After Reading this I feel sorta stupid. Its Quadra Drive 2. Uses breaks to lock the differential passing power across. Although, it should be noted, that the WH across seas has actualy electronic lockers in the diff's. Does not use breaks on the WH. They are both Quadra drive 2 and both ELSD by factory terms. Sure wish the WK would have the lockers the WH has. 10bolt compared to the 12bolt pattern on the 8.25 rear diff. I take back my Jeep having any problem walking anywhere in any condition with the Quadra Drive 2. ITs pretty much GOD for a stock system.
@Founas007 That only happens when you have brakes applied to that wheel. If you had a differential locker, it would turn at the same speed as the other wheel on that axle. If it were open without brakes applied, it would be spinning. If it were on a limited slip differential, it would be turning at the same speed as the other wheel until the clutches broke loose, then it would act like an open diff, spinning the free wheel.
@@gtonram I love it too! It is just at the age where it is nickle and dimeing me every three months now :(. Don't mind gas because that is much better than a payment on something new, but everything but the engine seems to be falling apart lol.
@dkia09: no, quadra trac with traction control needs the wheels to be continously spining in order for it to act. when you stop the car with one wheel with poor traction the traction control doesn't know what to do for first few seconds before traction control begin to engage again. quadra trac with traction control is not a bad system, but you will reach the limit of this system quite fast and is hard on your brakes (as traction control uses the brakes to asist it).
Awesome car. Have the diesel version. Great milage. Plenty of power (220hp) and great towing and offroad. And last but not least. I can take my 4 kids with us.
Thanks. I would like to do it, but majority of other vehicles have open diffs, limited slip differentials, or TCS (electronic traction control), but nothing similar to QD. Fortunately you can buy stock vehicles with locker that are manually engaged such as Wrangler Rubicon, RAM Power Wagon, Mercedes G, etc, but these cars are way different. This fact makes the Jeep Quadra Drive system the only and the best factory option on the market for offroad use you can buy in this class of cars.
Looks like the traction control system works well in these conditions,theirs hardly even a hint off wheel spin,kudos to jeep,its a shame their discontining the commander
You misread what I posted. You pretty much said the same as I did, but you wrote it out. From my understanding you think that QDII doesn’t have a central locking diff, which is not true. Both QDII and QTII has central locking diff when in Low Range. I also don’t agree with your statement that there is a small difference between QDII and QTII. You will notice with heavier off-roading that the activation speed and “holding strength” between systems is very different.
@dkia09: What year and type is the vehicle you drive? QT 1 is the most simple version of 4x4 systems by Jeep. It doesn't have low-range. You can drive it on unpaved roads, on snow, etc without any problems, but serious offroading is not possible with this system.
@ianmma i have been out wheeling with some lr4's and i was ina comander overland qd2.. btw the commander does not have lockers like this guy says... there is no locking mechanism in rear or front axle it is all electronically controlled to each wheel the qd2 however is still the best system on the market hands down.. for stock
@ianmma: I have no personal experience with the LR4, but as far as I know, it has no front locking differential and I have no idea how locking central and rear (option) differential works on the LR4. My guess is that the WK with Quadra Drive (manual central locker and automatic rear and front lockers) would perform better offroad then LR4.
@ianmma Jeeps Quadra drive 2 is excellent, one of the best 4x4 systems. But in the other hand, LR4 has far better suspension, being airsuspension. Offers more wheel travel, and more clearance. LR4 does not have a front locker, but it has a very good traction control, that does probably 90% of what the Jeep's Quadra Drive does, so it replaces the front locker at most cases. Only at most extreme stuff, the Jeeps 4wd is visibly better. Both are good at their own way.
Those lockers work a lot better than the Detroit Auto Lockers I had on my Discovery, you had to really spin the wheels up to get them to lock. The knocking/clattering at the end is a bit worrying!
I love my 2006 jeep commander yes its 2x4 with 4.7 but damn I lived in Colorado for a year and in the snow it did awesome still with 176k on it had it brand new. That things can swing the back out and you can just have so much fun. To this day it has never had a check engine light but that might be because I take care of it oil change are 3 to 5k and I'll make sure everything it Grease up. At 200k going to get the timing done
From what I have tested, the QD II acts more like lockers were the QD I acts as inteligent limited slip differentials. I dont want to say QD I is a bad system, it just depends on your expections from the system. When you drive your car as a daily driver most onroad and light offroad conditions such a snow, light mud and other light offroad slippery conditions then QD I will work perfect for you.
@Founas007 If you knew much about how a vehicle worked, then you'd know that yes, when the third brake light is lit, you are indeed braking. I can clearly see the third brake light illuminated. Now, whether it was from you having your foot on the brake, or from the traction control system applying the brakes for you, who knows? But I know from the video that it's not diff locks that are giving you traction, it's active braking. Notice how the wheel in the air doesn't turn while you move.
Hello Founas007...... nice video and yes I agree that the QD2 is much better then the QD .... but.... I still think the gerotor pumps in the axles of the GC you had with QD in that other video, were not working as they should. Five Stars for this video, thanks for posting.
@TJvigilante This system is definitely NOT actuated by the brakes like you can do in an open dif vehicle. I own a Commander with QDII and I have owned several open dif Jeeps in the past. Huge difference!
@TJvigilante You are talking about traction control. And yes traction control can do quite much too, but it's called Quarda Trac 2. Quarda Drive 2 is totally different, it is based on these, special type of differentials and is capable for 100% locking. It is a better system than traction control, although, traction control is very good too. And real manual lockers are the best. ;)
@@wildbill23c "The Eaton EGerodisc is a hydraulically-operated, electronically controlled, limited slip differential that is capable of providing variable torque up to full axle lock, helping to maximize traction when needed. The EGerodisc™ can be used as a stand-alone product that provides ultimate traction control, or it can be integrated with ABS or stability control packages to also provide enhanced vehicle dynamics." That is what the Quadradrive 2 has front and rear. You can also buy them new today for many different axles besides Jeep. Still the same. It is also what they use in the Rubicon but they add a manual control rather then just automatic control on the Grand Cherokee platform. After 2011 it was rear only but the 2005-2010 it was front and rear.
@ShottsUZJ100: Well they are not 100% lockers, but acts similar. I didn't find a point when they are start slipping, so from my point of view they acts as lockers.
@fitbmxseries1: you must ask yourself, if you want more power or not. The 4.7 has much better torque then the V6 3.7. for 2008 and up the V8 4.7 was modified so the HP and torque was increased. I would prefer 2008 V8 and newer, or the HEMI 5.7L from 2009.
i have a jeep grand cherokee and i was wondering would it work if i removed the front drive shaft for 2wd? i know it transfers all the power to wheels with the most traction so would it just send all the power the front even if theres no drive shaft?
I started on a 2wd xk and I'm currently saving to get a unicorn. Quadra trac II is getting hard to find because those who know know, and people ride them til they die. I've got a distinct feeling that years from now XK's will carry the xj legacy. First you hear an engine roaring then you see some crackhead full sending over a hill into a pile of rocks.
Thanxz buddie. I don't know what I have since I bought the jeep from the inlaws. It's a 2008 with the 3.7 . Unlike my wife's liberty there's no transfer case shift . Is it all wheel drive? Is that good ? All it has is the shifter with a plus or minus sign. It's got the badging and I can see a front differential . Help me out. Can I still go off road ? At what speeds. ? Is there something I have to do like shift to neutral ??
@casperman32 It's my experience that the sounds come from a weak/worn front drive shaft joint coming out of the t-case - at least thats the case with my 03 liberty.
your wrong. the QTII system has a center locking diff that allows all wheels to spin at the same time when driving in 4low. read the manual. that differs it from QTI, which doesnt have 4low option and just has traction on right driver and left passenger tires but will give power to other wheels if computer senses slipping. So the only difference between QDII and QTII is that QDII has separate lockers in rear and front instead of a center locking diff like QTII, which is not a big difference.
The vehicle doesn't have lockers, it has limited slip differentials that are electronically controlled, when wheel slip is detected it will progressively engage them...they'll never be locked completely, only way to solve that is to install actual lockers.
@mdrpdj6 limited 5.9 what? jeep commander came with a 5.7 hemi a 4.7L flex and non flex fuel and a 3.7L V6 thats the engine options. comes with three 4wd systems featured here the QD2. also comes with the QT1 and QT2
@Jdstephens007: Jap, I'm planing to test the 2011 GC. The only problem is, I don't want to buy it, because I don't like the car. I hope, I will be able to borrow it soon.
Jeep needs to bring the Commander back for 2020
choloneressurected agreed mopar was dumb to have the Durango stay instead I prefer the military look of the commander along with the capability I have a 06 limited with the 4.7 Love it it’s my daily/winter car to keep the Stangs up whenever it’s bad out
I understand why it went away but yes it's time to bring it back.
They’re awesome cars yes they do cut on gas but u know what it’s a flat nosed Jeep there not ganna be good on gas
And NOT as a crossover! >:(
THE NAMEPLATE IS SOLD IN CHINA.
The real mall crawling happens in the back of the mall
Savage
"Mall crawling" no longer applies once you get on two wheels 🤣
Quadra-Drive II is the BEST. Took my stock '06 Grand Cherokee Overland Hemi to the San Juan Mountains in Colorado, went places the old times told me to stay away from and then drove 1000 miles back home.
9 years later the same system is still used. Epic system
I'm happy to see you did the Quadradraive two test as promised
the quadra drive ll is the best stock machine I have ever driven In snow conditions
thanks for showing me what my jeep commander can do without me doing it mysellf
Looks awfully like my wife trying to park. I find it best to shut my eyes and realize its just a vehicle and I have a good body man to fix what she creates. Otherwise great video. Give me a Jeep any day.
+jjs777fzr You made me laugh hard :D
Love the comment lmao
me too :D
If you want to add traction - turn stability control off - that makes it use lockers to the full extent. Otherwise it still lets them slip. I have just checked that.
Actually, in four Lo it automatically turns the stability control off.
@Curtis Johnson my 07 commander in low range turns traction partially off, if i hold the traction button for 5 seconds it will turn ESP off
@yellowcow13: Quadra Trac I: no low range, no lockers, traction control
Quadra Trac II: no lockers, traction control
Quadra Drive I & II: lockers. II works much better then I.
all systems are full time 4x4
Stop calling them lockers, they're limited slip differentials...huge difference.
Thanks.
I have a 07 commander 5.7 and live in New England ... 11 yrs and haven't been stuck once..... one of the best 4x4 systems out there...
JEEP. .... there is no substitute !!!!! #JEEPSTER
Thanks, this and your other videos are very informative. It would be interesting to do side by side comparisons of the Jeep Quadra-drive system to vehicles built by other manufacturers.
@bomfunkportugues: the easiest way is by the label near the gear shifter. the label will say Quadra Trac, or Quadra Drive. Vehicles equiped with Quadra Drive has also a label on the rear door
@TJvigilante: As I mentioned before, the 2005-2010 Grand Cherokees / Commanders (with Quadra Drive) have front and rear "lockers" from Eaton (EGerodiscs). So no open diffs, no traction control. You are posting incorrect information which will confuse others.
@JeepMan19007 I'm aware of this...but they're the only remaining Jeep model sold in America that has solid front and rear axles. The XJ and the WJ were the last non-wrangler with solid front axles.
The system monitors wheel speeds using the ABS system's wheel speed sensors which is how it determines whether to engage or disengage the lockers.
Quadra Drive II was an incredible system. Pity they had to kill it because of fuel economy.
hossguitar yeah I have a 2007 limited 4x4 jeep commander V8 with qd2 and it uses a lot of fuel
paolo bertoldi no it dosent i have a limited 5.7 commander and it dont waste much
True. I average 14-15mpg in my 08 QDII hemi grand cherokee
I just got one of these I wondered why they killed it. The truck in general is a nice jeep, lots of stuff for its age. My other car is a hellcat so gas is definitely nothing new and doesn't ruin the fun for me.
I riding Overland 3.0 Crd in korea.
It givs Litter per 11km Economy.
Good
We have a jeep commander Trail rated with the 5.7 Hemi which = Quadra Drive II.
You asked how does it know when to un-lock. I'd guess it senses the binding in the drive-line as indication that sufficient traction has been regained and thus, un-locks.
Our Armada can sense binding while in "manual" 4X4 HI or LOW modes and has a warning light that comes on unless you're in auto 4X4 mode. In auto 4X4 it unlocks on it's own.
Dude , that was amazing. Im going for it ... Limited edition with the great V8 4.7 L 285 BHP . Fuck the MPG thing!!!
The 4.7 is the worst motor you can get in them bud, either 3.7 or 5.7 . The 4.7 is Chryslers bastard motor
Chase Clouser The 4.7 Is not a bad Engine I have the 4.7 High Output In my 04 Grand Cherokee Overland and It has 175xxx and Is still running strong.
Keith Leeman workeworked in a dealership and between the trucks, the durangos and the jeeps , I don't have one good thing to say about them. Same with all the guys I worked with. But that is our personal mechanical opinions. I'm happy for ya that u seem to have gotten a good one. Have a good one.
Chase Clouser i have two 4.7's, great motors. one is a 2000 dakota with 180k, and 2004 grand cherokee high output with 118k. not a problem out of either....you are aware the 3.7 is based off of the 4.7 right? they have seen their issues, but then so has the newer 5.7 hemi. then if the 4.7 was such a "bastard" motor, why would they run it from 1999-2013?? take care of your stuff and it will return the favor. however on the internet we always see the complainers right?
cadga1390 Exactly
5-star rate from Toronto! Great vid!
@ShottsUZJ100: As I already replied earlier, I know they are not 100% lockers, but they act similar as they are able to transfer almost 100% of torque on both wheels. The 2005-2010 Grand Cherokee /Commander have front and rear "lockers" from Eaton (EGerodiscs). The 2011 are only equipped with a rear Eaton locker.
@tanhelmet: if you can see a front differential, but you don't have a shifter, then you have all wheel drive with Quadra Trac I. It works pretty well, but nothing for serious offroading. there are no lockers, just traction control.
@greenjeens: It depence on the system, this is Quadra Drive II. Other systems use traction control.
@ShottsUZJ100 They are electronically controlled differentials that use a clutch pack, It can up to "lock" 100% automatically. Only the name is ELSD but it doesn't mean anything, no ELCD, LCD is a screen type, lol. It first senses the slip by the sensors in the vehicle, after that it operates the clutch pack, and it can move momentum where it's needed. It's just almost as efficient as 100% manually operated locker like ARB, it does 98% of what the ARB does. So in a very few places you need more.
yea QDII does have a center locking diff just like QTII. I just wanted to stress out that QDII & QTII are very very similar and are both very off road capable. MY commander has QTII and goes through the same trails that my freinds Cherokee w/QDII goes through. It would be nice to post a video of both systems being compared in a offroad scenario so people can see.
Good question. I believe its the locker (another option is TCS, but its too loud and a„hard of a noise for brakes). In sharpe turns when the differential was locked before it always makes these kind of „clicking noises. When you watch the wheels on one axle, you can see the locker release a bit and lock again. How it works exactly I have no clue. If I have some free time, I will open the diff and check to see how it exactly works.
Best Jeep this thing needs to comeback
this video stresses me out
Czek Me too! I feel like something is going to break.
@TJvigilante: No, when the brake light is lit, the brake switch is engaged. In my video my left foot was on the brake pedal. Because of this the light came on but the brakes were not engaged. If I was braking I would have needed higher rpm to keep the vehicle moving. But as you can see, the engine is still at idle. So there was no braking at all. The main thing is: Quadra Drive II = Eaton EGerodiscs differentials = lockers, this is a fact.
@justinsparc
Was he not in 4lo ? I'm 100% certain his lockers are engaging. That clicking sound isn't a u-joint someone mentioned earlier. It IS the lockers. It's not made to lock up 100% solid. The clicks are the diffs slipping to prevent binding and breaking shit. An auto-locking Detroit will do the same thing on the highway although there are different components inside that are causing the sounds.
Thanks for the demo. I've heard so many myths and exaggerations about the unibody frame I was half expecting something break loose. It is a dependable frame, or else why would they keep using it? If it can handle two wheels in the air without so much as a sound it is a solid frame IMO. If I see a good deal on one of these I'd buy.
Just for reference to anyone wondering. Once the diffs lock they remain locked until 90 seconds after sensing any wheels slipping.
Thank you. I still believe the QDI was ok, but you may be right. I want to make it clear, so I will get a hold of a Jeep WJ, test it and post the results.
Check video named: 'Jeep Grand Cherokee climbing onto road' The QD I of this Jeep acts exactly the same way as mine did - slow, with higher rpm and without spinning the second wheel. But as I said I will test it again with different WJ and post a result here.
Great video but. I don't think your truck was not using lockers. Look at 1:10, Your right front wheel when it was off the ground did not move at the same speed as the left. I think the computer was braking the wheels with no grip causing power the go to the other side. Companies are doing this now to save money on locking diffs.
***** I watch the video again and when he was backing up. The right rear wheel was not moving at the same speed as the left. If they was locked, both rear wheels would roll the same.
***** ABS braked. Watch a GM g80 truck video and you will see a locker n action.
***** ELSD electronic limited slip differential, not lockers. But I was wrong, I thought they use brakes.
After Reading this I feel sorta stupid. Its Quadra Drive 2. Uses breaks to lock the differential passing power across. Although, it should be noted, that the WH across seas has actualy electronic lockers in the diff's. Does not use breaks on the WH. They are both Quadra drive 2 and both ELSD by factory terms. Sure wish the WK would have the lockers the WH has. 10bolt compared to the 12bolt pattern on the 8.25 rear diff. I take back my Jeep having any problem walking anywhere in any condition with the Quadra Drive 2. ITs pretty much GOD for a stock system.
It doesn't have lockers, they have limited slip differentials.
@Founas007 That only happens when you have brakes applied to that wheel. If you had a differential locker, it would turn at the same speed as the other wheel on that axle. If it were open without brakes applied, it would be spinning. If it were on a limited slip differential, it would be turning at the same speed as the other wheel until the clutches broke loose, then it would act like an open diff, spinning the free wheel.
It's an elsd. Google. Front and rear
Huh I had no idea this truck was loved so much.
luv mine just hate the gas milage
@@gtonram I love it too! It is just at the age where it is nickle and dimeing me every three months now :(. Don't mind gas because that is much better than a payment on something new, but everything but the engine seems to be falling apart lol.
I used to do stuff like that at work with my Suburban, but the boss yelled at me so I had stop, lol.
@RuBerSideDwn He's talking about the 98 GC. It had a 5.9L V8 option.
I only brought up the Armada to show that it's possible for a system to sense the binding.
@dkia09: no, quadra trac with traction control needs the wheels to be continously spining in order for it to act. when you stop the car with one wheel with poor traction the traction control doesn't know what to do for first few seconds before traction control begin to engage again. quadra trac with traction control is not a bad system, but you will reach the limit of this system quite fast and is hard on your brakes (as traction control uses the brakes to asist it).
Awesome car. Have the diesel version. Great milage. Plenty of power (220hp) and great towing and offroad. And last but not least. I can take my 4 kids with us.
This is pretty kick ass that you can do this with a vehicle! Jeeps rock.
We recently picked up a commander hemi QD2 to try out, shockingly surprised.
Thanks. I would like to do it, but majority of other vehicles have open diffs, limited slip differentials, or TCS (electronic traction control), but nothing similar to QD. Fortunately you can buy stock vehicles with locker that are manually engaged such as Wrangler Rubicon, RAM Power Wagon, Mercedes G, etc, but these cars are way different. This fact makes the Jeep Quadra Drive system the only and the best factory option on the market for offroad use you can buy in this class of cars.
Looks like the traction control system works well in these conditions,theirs hardly even a hint off wheel spin,kudos to jeep,its a shame their discontining the commander
Thats a good jeep that model is more of a Soccer mom jeep, for a stock family suv its a beast and very flexible good video and great car!
You misread what I posted. You pretty much said the same as I did, but you wrote it out.
From my understanding you think that QDII doesn’t have a central locking diff, which is not true. Both QDII and QTII has central locking diff when in Low Range. I also don’t agree with your statement that there is a small difference between QDII and QTII. You will notice with heavier off-roading that the activation speed and “holding strength” between systems is very different.
All that aluminum in the chassis flexing.
@dkia09: What year and type is the vehicle you drive? QT 1 is the most simple version of 4x4 systems by Jeep. It doesn't have low-range. You can drive it on unpaved roads, on snow, etc without any problems, but serious offroading is not possible with this system.
Heartache when i was watching this video . My family have this car and we try our best to maintain the car thats why ...
what were the noises it was making from 2:29 to 2:40??.....great vid, set of 33" on that would work real nice
@ianmma i have been out wheeling with some lr4's and i was ina comander overland qd2.. btw the commander does not have lockers like this guy says... there is no locking mechanism in rear or front axle it is all electronically controlled to each wheel the qd2 however is still the best system on the market hands down.. for stock
Just got a 2007 limited trail rated for 6k no rust almost perfect condition for its age winter vehicle only summer car is my 2020 wrx
@ianmma: I have no personal experience with the LR4, but as far as I know, it has no front locking differential and I have no idea how locking central and rear (option) differential works on the LR4. My guess is that the WK with Quadra Drive (manual central locker and automatic rear and front lockers) would perform better offroad then LR4.
Nice comentery Kristof,pozdrav od Michal a marioly holzbach
@ianmma Jeeps Quadra drive 2 is excellent, one of the best 4x4 systems. But in the other hand, LR4 has far better suspension, being airsuspension. Offers more wheel travel, and more clearance. LR4 does not have a front locker, but it has a very good traction control, that does probably 90% of what the Jeep's Quadra Drive does, so it replaces the front locker at most cases. Only at most extreme stuff, the Jeeps 4wd is visibly better. Both are good at their own way.
@casperman32 This sound normally comes from the differential when your turning and differential is trying to stay locked.
Did Traction Control use the brake to control torque output,
instead of using the differential to distribute torque output ?
Those lockers work a lot better than the Detroit Auto Lockers I had on my Discovery, you had to really spin the wheels up to get them to lock. The knocking/clattering at the end is a bit worrying!
We have an 06 jeep commander 4 wheel drive. I didn't know it could do this. I thought they were open diffs.
Thanks. Your Commander doesn't have a QD II. It has TCS (traction control) which works pretty well, but way different then QD II.
Let me find a spot at the grocery store where I can park like that :P
I love my 2006 jeep commander yes its 2x4 with 4.7 but damn I lived in Colorado for a year and in the snow it did awesome still with 176k on it had it brand new. That things can swing the back out and you can just have so much fun. To this day it has never had a check engine light but that might be because I take care of it oil change are 3 to 5k and I'll make sure everything it Grease up. At 200k going to get the timing done
From what I have tested, the QD II acts more like lockers were the QD I acts as inteligent limited slip differentials. I dont want to say QD I is a bad system, it just depends on your expections from the system. When you drive your car as a daily driver most onroad and light offroad conditions such a snow, light mud and other light offroad slippery conditions then QD I will work perfect for you.
Wamhat Arena those sounds that are heard??? Scratching Noises?
Where die they come from?
@Founas007 If you knew much about how a vehicle worked, then you'd know that yes, when the third brake light is lit, you are indeed braking. I can clearly see the third brake light illuminated. Now, whether it was from you having your foot on the brake, or from the traction control system applying the brakes for you, who knows? But I know from the video that it's not diff locks that are giving you traction, it's active braking. Notice how the wheel in the air doesn't turn while you move.
Hello Founas007...... nice video and yes I agree that the QD2 is much better then the QD .... but.... I still think the gerotor pumps in the axles of the GC you had with QD in that other video, were not working as they should.
Five Stars for this video, thanks for posting.
@TJvigilante This system is definitely NOT actuated by the brakes like you can do in an open dif vehicle. I own a Commander with QDII and I have owned several open dif Jeeps in the past. Huge difference!
@TJvigilante You are talking about traction control. And yes traction control can do quite much too, but it's called Quarda Trac 2. Quarda Drive 2 is totally different, it is based on these, special type of differentials and is capable for 100% locking. It is a better system than traction control, although, traction control is very good too. And real manual lockers are the best. ;)
Excellent video
@TJvigilante: nope, as you can see the engine is in idle. Brake lights on doesn't mean "braking"
At founas007 that commander doesn't have quadra-trac one at all. It has quadra-DRIVE two which has rear front and center locking diffs.
No lockers, just limited slip front and rear differentials, and the t-case locks in 4wd low range splitting torque 50/50.
@@wildbill23c "The Eaton EGerodisc is a hydraulically-operated, electronically controlled, limited slip differential that is capable of providing variable torque up to full axle lock, helping to maximize traction when needed. The EGerodisc™ can be used as a stand-alone product that provides ultimate traction control, or it can be integrated with ABS or stability control packages to also provide enhanced vehicle dynamics."
That is what the Quadradrive 2 has front and rear. You can also buy them new today for many different axles besides Jeep. Still the same. It is also what they use in the Rubicon but they add a manual control rather then just automatic control on the Grand Cherokee platform. After 2011 it was rear only but the 2005-2010 it was front and rear.
Is it normal the noise in 3:01?
PABLO JORGE It is normal, it is the suspension with mud or sand
Not sure, It do it just in low range and QD2. seems like if the dif remain locked
@ShottsUZJ100: Well they are not 100% lockers, but acts similar. I didn't find a point when they are start slipping, so from my point of view they acts as lockers.
@mdrpdj6 It's 98 ZJ, right? Then no, QD II is in the Grand Cherokee and Commander from 2005.
@luuvjeep i got an engine remap, it really moves now, im happy, maybe i will look at an intake
I don't know what just happend, my previous post appeared in different thread after you reply to it.
hopfully picking one up this weekend for my fiancee, should i go with the 4.7 or the 3.7? whats more dependable?
i love the jeep commander
@fitbmxseries1: you must ask yourself, if you want more power or not. The 4.7 has much better torque then the V6 3.7. for 2008 and up the V8 4.7 was modified so the HP and torque was increased. I would prefer 2008 V8 and newer, or the HEMI 5.7L from 2009.
i have a jeep grand cherokee and i was wondering would it work if i removed the front drive shaft for 2wd? i know it transfers all the power to wheels with the most traction so would it just send all the power the front even if theres no drive shaft?
I started on a 2wd xk and I'm currently saving to get a unicorn. Quadra trac II is getting hard to find because those who know know, and people ride them til they die. I've got a distinct feeling that years from now XK's will carry the xj legacy. First you hear an engine roaring then you see some crackhead full sending over a hill into a pile of rocks.
Thanxz buddie. I don't know what I have since I bought the jeep from the inlaws. It's a 2008 with the 3.7 . Unlike my wife's liberty there's no transfer case shift . Is it all wheel drive? Is that good ? All it has is the shifter with a plus or minus sign. It's got the badging and I can see a front differential . Help me out. Can I still go off road ? At what speeds. ? Is there something I have to do like shift to neutral ??
full time 4WD, 48/52 torque split. There's no neutral position on those, its in 4WD all the time with no neutral and no low range.
What tyre pressure are you running for the sand?
old timers local to Silverton, Colorado
what about quadra trac 2... doesnt the front and rear lock? or does it
Ummm... that was awesome! Nothing's better than a Jeep!!!
@casperman32 It's my experience that the sounds come from a weak/worn front drive shaft joint coming out of the t-case - at least thats the case with my 03 liberty.
do they still make the commander? and I think I will get a commander someday I know for sure I will
I just bought a 2007 5.7 v8 hemi limited with trail rated package
your wrong. the QTII system has a center locking diff that allows all wheels to spin at the same time when driving in 4low. read the manual. that differs it from QTI, which doesnt have 4low option and just has traction on right driver and left passenger tires but will give power to other wheels if computer senses slipping. So the only difference between QDII and QTII is that QDII has separate lockers in rear and front instead of a center locking diff like QTII, which is not a big difference.
hi, how i can identify if a commander have quadra drive o quadra trac sistem?
The vehicle doesn't have lockers, it has limited slip differentials that are electronically controlled, when wheel slip is detected it will progressively engage them...they'll never be locked completely, only way to solve that is to install actual lockers.
Great video that's what I call trail rated
Disco3/4 with rear-e-diff is very similar in practice. Still, nice vid.
For how long Cisco in your qbuadra will work property? 5k miles? No less
@mdrpdj6 limited 5.9 what? jeep commander came with a 5.7 hemi a 4.7L flex and non flex fuel and a 3.7L V6 thats the engine options. comes with three 4wd systems featured here the QD2. also comes with the QT1 and QT2
@ShottsUZJ100 Sorry...."ELSD" not ELCD.
@Jdstephens007: Jap, I'm planing to test the 2011 GC. The only problem is, I don't want to buy it, because I don't like the car. I hope, I will be able to borrow it soon.
I’m pretty sure that dent in the back in the unibody tweaked😂