ECGS Toyota 7.5" Front Differential Regear w/ Eaton E-Locker Install
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- Опубликовано: 6 сен 2022
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In this video, Chase Perry, the CEO of East Coast Gear Supply walks you through the steps regear your 7.5" clamshell front differential. Chase also shares all the intricacies of properly installing an Eaton (Harrop) E-Locker.
Chase doesn't show everything in this video because there's an assumption that you've watched his other video of rebuilding and re-gearing the rear 8" differential. So, certain things aren't shown like the pulling off and pressing of the carrier bearings, knocking out bearing races and putting new ones in, removing the old ring gear and the trick to getting the new one on, and going through the pinion bearing preload operation. All the things mentioned above are covered in the 8" Rear Differential Regear video. So, if you need instruction in things I mentioned, please watch the Rear Diff Video: • ECGS Toyota 8" Rear Di... The Rear 8" Differential Regear video is the foundation for this video.
This video doesn't cover the removal and reinstallation of the front differential. The first time we pulled a front diff on a 3rd Gen 4runner, we struggled a bit.
Our Front Differential Replacement (Part 1) video • Front Differential Rep... walks you through most of the process.
We made a Front Differential Replacement (Part 2) video to share some further information to make the removal and reinstallation much easier. • Front Differential Rep...
*ECGS Website*
eastcoastgearsupply.com/
*New Gear Break-In Procedures*
Please read the pinned comment for info regarding the proper break-in procedure for a front differential on a 4wd vehicle.
*GEAR OIL*
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*PARTS*
You can order the parts for your rear differential from the ECGS website or you can call them and one of their sales staff will help you out with your order.
*Tools Needed*
Here's some of the specialty tools used during the job that ECGS sells.
*ARB Side Adjuster Pliers
eastcoastgearsupply.com/i-494...
*Carrier and Pinion Bearing Puller Tool Set
eastcoastgearsupply.com/i-131...
*Dial Indicator with Magnetic Base
eastcoastgearsupply.com/i-626...
*Beam Style Inch Pound Torque Wrench
eastcoastgearsupply.com/i-192...
*Loctite Sleeve Retainer Compound
eastcoastgearsupply.com/i-129...
*Seal and Race Driver Set
eastcoastgearsupply.com/i-128...
*Toyota 8" Side Adjuster Tool
eastcoastgearsupply.com/i-129...
*Other Tools Not Sold by ECGS*
If you're looking for other tools not used in this video, check out Timmy's Master Tool List.
www.amazon.com/shop/timmythet...
*Differential Holding Tool
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*1/4" and 3/8" Flex Head Ratchet Set
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*1/2" Drive Flex Head Gear Wrench Ratchet
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*Large Metric Wrench Set
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*1/2" Drive Deep Metric Impact Socket Set
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*1/2" Drive Shallow Impact Socket Set
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*3/8" Drive Deep Impact Socket Set
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*3/8” Drive Shallow Impact Socket Set
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*3/8" Drive Regular Impact Extension Set
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*1/2" Drive Regular Impact Extension Set
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*Ball Pein Hammer
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*Dead Blow Hammer
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*Dewalt 1/2" Drive Impact Gun
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*Dewalt 3/8" Impact Gun
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*Dewalt Batteries
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*Dewalt Battery Charger
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*CDI 1/2" Drive 30-250 Foot Pound Torque Wrench
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*CDI 3/8" Drive 10-100 Foot Pound Torque Wrench
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*Long Taper Punch Set
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*Chisel & Punch Set
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*Micrometer
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*Press Sleeve Kit amzn.to/42KiQAa
*Toyota FIPG 1281 - (For Transmissions, Transfer Cases and Differentials)
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*Dremel Tool Kit
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*Dremel Tool Wire Brush
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*Red Line CV-2 Grease
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*Red 262 Loctite
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*Milwaukee 1/4” Right Angle Die Grinder
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*1/4” Die Grinder Sanding Disk Set
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**As Ebay Partner Network members, we earn commissions from qualifying purchases.
** As Amazon Associates, we earn from qualifying purchases. 
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*Front Differential Specific Break-In Instructions from East Coast Gear Supply*
*Normal 2wd operation will passively break in the front diff.
*Normal low speed trail riding under 20mph breaks in the front.
*Highspeed 4wd use for long periods of time should be avoided: Example would be road use above 45mph for over 10 miles, limit these types of drives until 500 miles is complete and oil is changed.
*Low speed 4wd use does not build heat, highspeed use does.
*Diff fluid should be changed if water is ever introduced, or after 1 year. No highspeed use for extended period of time, Change fluid after 500 miles of low speed, limited high speed use.
*Perfect break in would be fire roads, light trails under 20mph for 500 miles.
- Every customers driving patterns are different, the end goal is to limit temps above 250 degrees for extended period of time, a temp gun at pinion snout can be used to verify temps. As mention in video the front diffs hold very little oil. Diff drops and lower gear ratios impact oil flow to pinion bearings. Therefore, caution is highly advised for high speed use. Highspeed is defined as above 45mph.
-Note: This is specific to the 7.5 Clamshell referenced in video the larger Toyota front diffs T8 Clamshell holds more oil and oils better so is not as sensitive.
-Note: Main concern to cause issue is if user has brand new diff and jumps on highway in 4wd with low gears and diff drop, this can lead to pinion bearing failure very quickly
Thanks, I printed these notes
@@toddeliott20 You're welcome Todd.
Now I need to budget in an ECGS Eaton e-locker for my mall crawler just because this is such an awesome video
Yep, save your pennies in your piggy bank. The Eaton E-locker is pretty sweet and there's nobody better at installing them than ECGS. Glad you like the video. We appreciate the comment.
It is a joy to watch a craftsmen at work !
We agree. It was a very educational experience for us. We were lucky to get this opportunity to work with ECGS to produce these videos for the DIY Mechanic Community.
Awesome followup to the previous video... it definitely seemed more complicated than the rear. Appreciate all the extra advice for DIY'ers, but with all the special tools he used I totally understand why you'd want to pay a company like this to do the work!
Yep, the front is a bit more complicated for sure.
Yeah, ECGS definitely had a decent amount of custom tooling to make their life easier. Could a DIYer still do it? Sure they could, but the special tooling just makes the job go faster and quite possibly better.
Glad you like the video Sam. We appreciate the comment.
Hands down one of the best Dif set videos I’ve watched..
Thanks for the nice compliment Steve. We were very lucky to be given the opportunity to film at ECGS with Chase.
ECGS is a solid company. They are my go to business for all my gearing needs. Super good dudes with fantastic attitudes and plenty of knowledge every time I speak to them. They never steer you in the wrong direction. ECGS also offer military discounts!
I wholeheartedly agree with everything you said. I'm a big fan of ECGS. A great company ran by awesome people.
I am sending mine in to have them do the work. They spent a lot of time with you and definitely earned my business. Thank You
Good decision and you're very welcome. ECGS does awesome work.
I used to live in California a few months back but now I'm only a few hours from ECGS. Great! Thanks for this video and another source I can go to whenever I decide to get a front locker. I have a 2000 limited with factory e-locker.
Yeah, that makes it easy. You could order a differential with the locker of your choice, pull yours, drive it over to ECGS, pickup up your new diff, and drop yours off to satisfy the core charge. Easy Peasy and no shipping expense.
Great video on the installation of the Eaton e-locker! I have the front Eaton e-locker on my 3rd Gen and you do not need the CV axle bushing upgrade because the e-locker is in one piece and it’s incorporated it into the assembly. Thanks again Timmy!
Thanks for the info about the bushing and we're glad you like the video. You're very welcome!
Good stuff Timmy! 👏👏| My regear diffs comes in tomorrow with same Eaton in the front! Excited!!
Cool, good luck with the install. We will have a video showing how to do the wiring very soon. Stay tuned.
Thank you for all this information Timmy. Nice video 👍
You're welcome Arin. Glad you like the video.
Awesome! Learn a lot . Have a 98 4r as well! Thank you for putting this vid together!👌👌
Glad you learned a lot from this video. I was stoked to be able to partner with ECGS to bring this content to the public. You'd be hard pressed to find an instructor on this subject that's better than Chase Perry. You're very welcome and thanks for taking the time to comment. We appreciate it! Happy Wrenching!
Thanks! Looking forward to be a ECGS customer
You're welcome. ECGS does great work. They're the best in the gear and axle industry.
I bought both a front and rear with lockers from these guys ,rear is in and working flawlessly and I hope to get front in soon
Smart decision. Good luck with the front installation. We have videos that can help you with that.
@@TimmyTheToolman can you link me to the videos? I looked but did not see them😒
@@regularguy8592 Here's Part 1: ruclips.net/video/w_gPiDvh9v4/видео.htmlsi=AGg01fycHdpTHT_L But, be sure to watch Part 2, because Part 2 covers some additional helpful tips to have an easier time getting the diff out and back in.
@@regularguy8592 Here's Part 2: ruclips.net/video/bOOxfDFUFsA/видео.htmlsi=1Iju5bMvHI3LtExw
@@regularguy8592 Further, what front locker did you get? If you got an Eaton E-locker, I have a video for the wiring aspect of it. ruclips.net/video/Kip0rTGfRpE/видео.htmlsi=mmPeM0rrlZFklKCJ
Awesome appreciate the help it really help me out on my front differential 8 inch on a 2020 Tacoma
Great to hear our video helped you out Tony. Thanks for taking the time to comment.
Well done guys!
Thanks Scott!
This is a life saver, doing an 8 inch clamshell next weekend and elocker on fj cruiser
Timing is everything. Hope it goes well for you.
I forgot to mention we have the Eaton E-Locker Wiring video as well. Check it out: ruclips.net/video/Kip0rTGfRpE/видео.html
@@TimmyTheToolman Thank you for laying groundwork!! I did the rear install(Easy). Doing a regear now due to humongus tires. Decided to add the front locker. Im a career mechanic but its still scary.
If you use a long zip tie to hold the two wires together and stick it through the hole first you can use it as a pull guide when you're installing the chunk.
Thanks for the tip.
Hi Tim. What gearing did you go with and what size tires are you running? Did you have to modify anything to get correct speedometer and odometer readings? I understand this is not the point of the video, but am curious.
I went with 4.88 gears and I'm running 33" tires. My speedometer seems to be close to accurate so my odometer readings would be accurate as well. There's nothing as far as I know you can do for the speedometer reading other than trying to match your gearing with the tire size you're running. 4.88 gears is pretty much perfect for 33" tires. But, even if your speedometer is off, it's not a huge deal as far as I'm concerned. If you're worried about getting a speeding ticket, just know how much it's off and you'll know what speed you're actually going.
@@TimmyTheToolmanI agree it’s not a big deal, but I’d like it to read right at some point. In my case, I’m going from 4.1 gearing with 31” tires to 4.88 gearing with 33” tires. Mathematically this would result in the speedometer reading about 10% low. I’ve seen a few posts on TacomaWorld of people replacing the vss sensor on the transfer case with one containing a different number of gear teeth, and others using a Dakota Digital device that can be calibrated precisely. Food for thought. In the meantime, like you suggest, a little mental math while driving will avoid the ticket.
@@fcparsons Yeah, if it will bother you, figure out a work-around. I remember looking at my phone GPS speed compared to my speedometer and they seemed closer than 10% off, but maybe not.
I’ve already got my truck re-geared. If I open it up and install a locker, do I need to worry about the pattern changing? I shouldn’t have to remove the pinion at all.
Good question and I'm not sure. The locker carrier that the ring gear bolts to might be slightly different than the OEM carrier, so the way the ring gear interfaces with the pinion gear might change. I would call ECGS and talk to the sales staff and ask them this question.
Any reason why it was not shown how to get the carrier preload set up?
Chase discusses it's best to keep the same carrier bearing shims as there was before as a starting point. If you have to move the carrier one way or the other to adjust the backlash, then you have to add shim to one side and take away from the other side. Chase also suggested to put the carrier into the clamshell without the pinion to get a feel if the carrier preload is sufficient. If the carrier isn't able to slop around inside the clamshell, the preload is probably good. To check how much resistance is on the carrier, you could probably put a screwdriver with a taped tip through the fill hole prying one direction and then the other against one of the teeth to get a feel of it. If you still have questions, call the sales staff at ECGS and I bet they can help you out.
Seeing this 4 months later, the 7.5" e-locker is not on the ECGS website. Are they sold out?
I highly doubt they are sold out, but anything is possible. When I was there, there were pallets of Eaton e-lockers. They also seemed to have a huge supply 7.5" cores ready to be rebuilt. I'm in San Jose, California, ECGS is in Louisburg, North Carolina, and I'm not privy to their stock supplies. I don't work for them. You should call them and one of their sales staff will happily and competently answer all your questions. I'm pretty sure you're going to find out that they have 7.5" clamshell cores and an ample supply of 7.5" Eaton e-lockers to build you a differential.
After i got done installing the e locker and I didn’t touch pinion and just reused the original shims and same gears with new Toyota genuine bearings and races I measure 8thousands backlash measure with my dial indicator at the pinion. Is that ok?
According to Chase, backlash measured at the pinion is actually double of what it really is if you measured it at the ring gear. So if you had 8 thousands at the pinion, you really only have 4 thousands backlash. That might be a little tight. I'm not an expert though. This is just from I learned filming these videos with ECGS.
@@TimmyTheToolman That’s what i saw and apparently spec is 0.06-0.010 for my 7.5 front diff in my 01 Tacoma. i don’t understand why it would be double at the pinion flange??? Theoretically it should be the same id think??
@erice4611 I'm just going by what Chase Perry said. It's probably because of where you're measuring it. Backlash is supposed to be measured at the ring gear. Maybe give ECGS a call and see if they can give you an explanation why the value is different when measured at the pinion flange.
Do they have a shop on the west coast ?
Then they would be West Coast Gear Supply. To answer your question, no they don't. What most people do is call in and order a differential with the gears they want and maybe a locker. ECGS charges a core charge because they want you to ship them your old differential so they can rebuild it for another customer. When they get the differential(s) back, they give you back your core charge deposit. By doing it this way, your vehicle is not down for weeks. You order your differential(s), they arrive via a shipping service like UPS or Fed Ex, you pull your diff(s) and ship them back in the same boxes. Easy Peasy.
Anyone with experience wheeling with a lockable 7.5 clamshell? If you wheel lightly and don't shockload the CVS, are front lockers worth it for the extra traction on 3 Rd gens? I have a 2000 limited with center and rear locker, I run stock size Cooper tires but I run a real heavy overlander, to be triple locked sounds exciting but I'm not sure it's worth the expense.......
If you wheel "lightly" you probably don't have use for a front locker. But, a front locker can make the difference between being stuck or having to turn around because the extra traction can make a significant difference. By the sound it though, you probably don't need one.
How’s your back Tim?
Feeling pretty good. I've been back to work for several weeks now. Thanks for asking.
Dose any one know the torque value for the clamshell bolts ?
It's 51 foot pounds.
Master, I don't know if I'm wrong, but that differential looks a bit tied up
Huh?
Tell me the 2 men my name is Hector I live in Myrtle Beach South Carolina. Thank you for your RUclips channel I would love to meet you someday but I don't know when I would be in California. I have a 98 Toyota 4 runner SR5 go on addition
We're in San Jose, California. If you're ever out our way, let us know.
Is the eaton stronger than the arb
Good question and I don't have an answer for you. This might be opinion based rather than factual based but maybe there's some proof that one design is stronger than the other.
@@TimmyTheToolman im going to further research this and hopefully bring a factual answer to the table !
@@4wdaddict41 I'll be interested to know what you uncover.