Tech Tip: Ball bearing axle conversion...Its not if they Fail but When!!!
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- Опубликовано: 2 окт 2024
- as i was working on a clapped out old mopar i found it to still have the original roller tapered bearing it it reminded me how bad the ball bearing conversion axles really are so i decided to show you guys why they suck
OLD SCHOOL FOR THE WIN.👍 Thanks for sharing your experience. 👍great video man
Remember to put the spacer in the diff, if you don't have it in there from running green bearings and go back to tapered
Take a drink every time Chris says balls 👌
I'm wasted 👍
By the way if you have rear disc brakes there's no way the axle can fall out even if the bearing fails because the caliper holds the disc and the disc is bolted to the axle
AMEN CHRIS!!! I have spoken on this all my life... Fallen on deaf ears... I will share this video next time. Thanks, Frank at Mopar Restos in Summerville, Ga.
Hard to beat oem engineering.
but dodge used this in the late 90's or so on 1500's as i remember a white truck come-in/tow'd that was missing a axle in 2008~13
yes there might be a recall on that dana parts 🤔
The green bearings in my Satellite lasted a couple of 1000 miles max.
They don't belong on the public road IMO.
Even tiny European cars have double row wheel bearings.
grate now what i restoration ( pre-yah-hoots 2019~ so hopefully it's still okay without damage ect ) my 1967-71 8-3/4 742 3.2 rear with the carbon-rotors/17in-rim-kit ( 0miles under power sofar sadly as my 383-trubo'd car/charger got chopped/stolen and haven't got it back together yet 😡😢 ) but the instructions were clear that greens were the only ones that fit and dana/dodge in the 90's or 2000's used the same part numbers for the back of suv's/truck's and yes i remember one/customers that came into the boss's gm/dsm/race shop for repairs in 2008-13 and me at 17-21yo
chris didn't mention were to get parts or how to get it to work with my saved bit's, next choice for a rear was dropout/used C6 or C7 ( ended up with the transmission TR6070 ( wanted.42OD for hyway drivability ect and 1st's 3:1 lower gear ect ) but passed on the IRS for now ) completely assembly but im like chirs and daily and drag* ( wheel-hop and a extra 200lb's or so = pass 👎 ) and occasionally load my trunk-up/airport-run 😉 but not towing as i have a k1500 single-cab-8ft-bed for that task
@@richardprice5978 My Satellite was basically used as a daily driver, nothing crazy. I would check them frequently if I had to use them again, my green bearings developed a LOT of side to side play.
I have about 30,000 on mine.
IMO, the aftermarket makes building cars much more complicated. Aftermarket brake systems are a joke!!
Thank you for saving me a lot of grief!
Yea they use ball bearings in modern car wheel hubs.....and I have to replace them constantly.
Chris after you beat the tar out of your cars ,you tell us what not to buy.Nice. It works for me
nothing wrong with junk when roller junk gets less grease same result heat friction to each their own the thing is application key use lubercation simple easy use over use
If adjusting the bearings on a 8 3/4 rear is difficult, time consuming, or beyond you capabilities, please sell your car immediately and go sit in your Camry.
I have a 73 Roadrunner with the original tapered bearngs, and I repacked them a few years ago and they are as good as ever.
Would like to see you get some merch rolling
They sure have the young guys convinced, they proudly crow that their car has switched over to Green Bearings.
I’ve heard there is an update version of the “green” bearing. Supposedly, more heavy duty. Any experience with those?
Dr. Diff was trying to tell me about this new updated bearing, but I am still sceptical about it.
There is an engineering formula that calculates how long a ball bearing will last. Chinesium used that formula to cut down on the amount of balls to make them last just long enough to take your money. I hate the ball bearings in the 2014 Ford explorer, here in the snow country the salt permanently fuses the bearings into the aluminum knuckle.
At work I just replace the knuckle and the bearing together for customers, it almost never works to just replace the bearing.
Thank You. This advice from last year prevented me from goofing up 2 B-body 8 3/4 axle rebuilds.👍
I love all your videos Chris but this "tech tip" is udder bullshit. If your V2 green bearings are failing that quick you have a setup issue. You probably have some pre-load on the bearing. V2 green bearings cannot have pre-load or they will fail. They are designed to free float ever so slightly in the housings. This is a setup issue on your end and not the bearings fault. The green bearings are the same design as the mopar 7 1/4 and ford 9 inch rear axles. Those bearings go for tens of thousands of trouble free miles even under abuse. Just because they failed for you and your setup doesn't mean that applies to everyone.
Thanks Dude.. my 7 1/4 I've had to replace them.. once..
Slant6 to 318 swapped daily driver 68 Dart Grandma special...
I've also... Have a Front hub bearing graveyard..
A1 and A4 if remember correctly...
9inch drum etc.. 5 on 4 bolt pattern...
The Timken A1s have stayed alive.. longest..
National is crap..
Mopar A Bodies Forever
Cheers from Huntington Beach CA 🇺🇸
@@AtZero138 see that's partially the thing too, bearings are wear items. Tapered or roller. They don't last forever. I do agree in modern manufacturing overseas is indeed shit. But all bearings can and will fail under different conditions. I also have an A body! 73 dart, I have Dr diff 8 3/4 in it with V2 green bearings. I hammer this car and drive it daily. Never had a bearing issue yet.
@@glitchtriple6 Since I also Daily.. you'll understand what I'm going to say.. they talk to you,, everytime we drive them,
My Grandma special Slant6 to 318 .. I've had Up to 110mph ..
5am blast on the freeway to work..
When my Axle bearing went.. the rear started to "track" in grooves, that feeling..
It didn't just.. extreme fail.. dramatic release of parts, like he described.. not questioning it . Just seemed like my own experience.. I felt it.. you know..
A Bodies Forever 🇺🇸
Great info!!!! i have only one set of aka green bearing and they are on my race car. Too loud to hear them going out..........now your going to make me us my floor jack today :) You should make a video on how to convert back to standard taper bearings.👍👍
Agreed on.. list of.. sets.. For just stock... Axle, stock Drum etc..
Mopar or Nothing...
Thanks for the honest commentary. Ehrenberg was saying the same thing 25 years ago.
I wish Ehrenberg had a you tube channel, he is a legend in my opinion.
So if I have an adjustable tapered bearing I need to pack it with grease like a front bearing. I always thought the gear oil took care of of lubrication of axle bearing
it depends on what car brand and axle
Well if you want to go roundly round then balls are out espicially on a heavy car like anything over 2200 lbs.... Tapered bearings rule I have tapered bearing 50+ year old still in great shape proper maintence is key and part of a full brake job on vintage mopars.... Timken is famous for their train tapered bearings there is no substitute in the real world.
Well if you want to go roundly round then balls are out espicially on a heavy car like anything over 2200 lbs.... Tapered bearings rule I have tapered bearing 50+ year old still in great shape proper maintence is key and part of a full brake job on vintage mopars.... Timken is famous for their train tapered bearings there is no substitute in the real world.
Thanks for the info because it seems all the videos I watch have people running "the green bearings" by default, even with stock rear drums, and I was thinking they're the new thing or something. Dodged that bullet!
PUN INTENDED?
The tapered style rear wheel bearing will hold way more sideload than ball bearings, but for straight line cars like drag cars I don't think it's an issue
I guess if you drive your car like HE does it's an issue😁 You wouldn't have a license for long here. I used Green Bearings in two cars that I remember. Both were everyday cars. One of the cars was my son's Charger that a failed tapered bearing had damaged the housing, so the Green Bearing was a fix for it. That was about thirty years ago and my friend owns the car now and it's still fine although it's not an everyday driver anymore and doesn't get driven the way Luke Duke would. The other car that I remember putting them in was an everyday 340 Duster that I put a B-body 8-3/4 in and caused me no trouble for years. That rear end wound up in my brother's Duster later with no problems. I think it depends on what you're gonna do with the car.
I could not agree with you more. You sir, are absolutely correct. Another problem is finding quality parts these day`s for our older American made vehicles, everything is made in China, 90% is crap, will leave you stranded, and it wont take long .
Thank You Chris !!!
excellent vid. Thanks...100% AGREE...Tapered bearings are 10X better built.
I drag raced for 9 years straight running 9's in the 1/4 mile without any issues. You must be buying cheap china crap bearings
Lol drag racing???…there’s no side load in drag racing
Those are a high angle roller bearing designed for radial and axial loads, but they are too small for the axle, because what you need is a dual row high angle bearing which has far more load capability. However a dual row bearing will not fit in your axle housing. Those single row bearings are probably fine for Mom going to and from the store, but for Chris Birdsong- no way.
I just pulled a Power Lock diff out of a '65 PowerWagon with 150k miles that has a drop-in camper built in '67. The Power Lock was completely wore out, not just clutches. I looked at the bearing because of this. Bearings were FINE. I'm guessing the only reason the Power Lock is shot is because the pre load wasn't adjusted over the the life of the truck. 👍
Awesome tec video , it’s the simple things that most people would miss , PS you originally inspired me a few years ago to start my own channel .
It’s doing ok , thanks for the motivation 👌🏽
So even the green bearings from Dr. Diff is bad that i just put in my 8-3/4 😮
Damn I just bought his last 2 sets of green. Mo 400
What's up Brother JD!!
I've killed both styles..
Could you figure out, the , Set size.. etc..
Also my Rear would..
"Track" in grooves.. that feel.. how Dude lost an axle.. is Wild.. my car.. told me something was up..
Mopar A Bodies Forever 🇺🇸
Please make video of making spacers and installation........
Those barings you chopped in half look like the shitty Factory barings that were on my 2013 Dodge Dart! They failed too!
I have always wanted a 1969 dodge charger. I missed an opportunity of my lifetime to own one in 1989. I found a 69 charger, no motor or transmission. No interior, just dash and instruments. And steering colum. I don't know if it was a R/T or not. But was told it was a 440 magnum that came out of it. No rust what so ever and all in gray primer. He wanted 500.00 dollars for it and at the time my wife said no because no place to keep it. I kick my self every time I see what they sell for now. I have one question for you though, do you have any videos of you building the general. I have looked on your channel and didn't see any. I am enjoying the videos of you building the big block turquoise charger.
Looks like pedal bike crank bearings....cept added plastic for added craptasticness
Ty Chris, for that awesome tech... that's amazing just in those bearing differences. Thanks again!... and loving the shit you do ! Great job, man!!!
Interesting Chris. I never had one of those apart. I "assumed "they were like a c clip 10 bolt chevy hub bearing with the flat roller bearings. Those aren't great, but the work . Those sealed bearing are shit.
Safe load ____ unsafe load ^ surface area for the win. Ball bearings only belong in skateboards, bicycles, and rollerskates.
My ball's are always touching.
Yeah ball bearings that's for 50 Oldsmobile not that aftermarket garbage some of these aftermarket companies I know better than the hillbilly out of Metallica concert have a great day thanks for the video
Gotta have balls for converting!
Is there a chance that different manufacturers of the so-called green bearing have different qualities like ones with many more balls in the bearings?
I'm a retired Machinist and I know that Ball Bearings are not designed to take any side thrust! Thank you for the post!
Could you do a video on how to get rid of the green bearings and go back to tapered? What’s involved what parts do you need and how to do it? Thanks.
Been woundering about the big hd race brakes on minty or smurff? How and what part to make that work??
100 % tapered bearings are the best, ball bearings were made for my great-great-grandfathers car.
I hate all the unit bearing front hubs on everything now. I have 50 year old tapered rollers in everything. Grease keep adjusted every 5 years. So hard to do😒
Oo I thought when you moved you wouldn’t need tents I guess,not enough space
Dude put new floor on that super bee I saw your new floor on A body car road kill U fix it nice it was like the same one
Bonsoir, c'est pareil en France, beaucoup de produit de qualité minable que les professionnels nous vendent cher. Moto voiture. Bon courage
Oohh what I laughed!!
Keepthe balls tight !!!
Ball bearing!! Of course 😂!!!
And the success is garantied
the tapered bearing is superior. this is why is sell so many mustang disc brake conversion kits for the rear to guys who road race their mopars.
wait a second,
ye cut the metall out of the bee?
yer sayin that it was holdin in ?
still, on what?
Yep, that's what I've read/heard. I went with the original tapered type. Dr Diff hooked me up, Cass is a good dude.
I just bought the 8-3/4 axle kit from Dr. Diff with green bearing for my 65 dart 8-3/4 . so they are bad ?
Hay MoparMan, Chris pretty much said it all. I would ask Cass,(Dr. Diff), if you could exchange them for the tapered type, especially if you are going to run the car on the street. I would talk to Cass directly, and tell him exactly what you have in the car, the year of the 8 3/4, 81/4, etc., type of brakes. And ask him to set you up with components, tapered bearings, etc. that will work together for your particular situation.
Probably made in China also.
What brand bearing was that you cut open and have you cut open other brands?
Hey Chris thank you for the information I give you a big 👍👍
Dude. I had no idea they were that cheaply made.
Chris, taper bearings are far from ideal with rear disc brakes. Which are supposed NOT to have sideways movement. They dont when you fit them but after 25 or 30 road race laps they defenitly do. And this with premium brand bearings. As soon as the bearing allows movement away goes the brake pedal with pad knock off. And that with a single piston floating head calliper. With 4 pots very bad news, the reason I use single piston
As for the bearing cage, hit it with a hammer, they shatter. Just watch out for flying shards as they are sharp. 50 y/o 9" axle bearing bit me for 3 stitches in my leg! First time in 50 years but always a first time.
GM often used single row ball bearing axles in the 60s, the 'premium' 9" axle is double row ball bearing. So far from new. However probably double the number of balls
Have another one
I agree, but I actually had a original factory tapered bearing failure way back in the 90's. Was doing about 110 down the highway in my 440 Charger when POW ! Was able to limp off the highway and get a tow. I won't blame the bearing but it turned out to be a lubrication issue. I would love to see a O.E.M. replacement video. I had a Dodge dealer do the repair (Vin Devers) but the tech ruined the axle when cutting the old bearing off. Fortunately Tom Devers found me a low mileage axle assembly with a good bearing etc. It was an expensive repair (over 700 bucks total). Has been fine for 30 years now. Had I used the "green" bearing I'm sure it would have failed long ago.
Another part of that big expense was because I had the dealer go through the differential due to the severity of the event. Also the inner seal would not seat properly so some extra labor was involved to get if perfect.
Thanks for another great tip Chris!
7:00
The emo neck choker bearing
RPM of a typical rear tire at 100 mph is about 1400 RPM, so RPM of rear wheel bearing is not very high
What about roller bearings?
Normal roller bearings can't handle side loads
Thanks for sharing 👍. That's sound advice.
Hopefully we will be able to see a match up between Chris Birdsong and the SUPER BEATER. vs.
Mike Finnegan and the DUMPSTER FIRE 🔥!! that would be AWESOMENESS!!! 2 clapped out Mopars making a superb display!!
😎🇺🇲🇺🇲🇺🇲
Thanks for the tip, never knew this.
Before they went to tapered bearings........cars had ball bearings. But, they were closer together and ran in a metal cage. Then tapered bearings came out and they might have 15 or more bearings. Then they went to tapered bearings with larger but fewer bearings. All cost driven. So, when you cut open this bearing......I was amused. I guess the next big change will be bubble gum bearings. Gee aftermarket parts that aren't as good as factory parts......who would have thunk??????
Well to begin with , I’d be spending money on something other than a rear disc conversion anyway . I’m now 66 yrs old , and I can honestly tell anyone , I’ve never ONCE had a major issue due to drum brakes on any of my vehicles . Maby If you’re building a dedicated rally car or something with constant winds and curves ?? But normal driving with any common street car Including the occasional turn er loose and have a little fun ? Nah . But that’s just my own thought and experience of coarse
💯%👍...as long as we're talking about REAR brakes.
What about when you run an Eaton Trutrac? You don't really have a choice because you don't have the bushing between the axles.
Rick Ehrenberg (Mopar Action) used to harp on this all the time and he was very correct. For hard use, regular daily driving, high mileage, etc. do not use green bearings.
You convinced us. Any chance you will show us how to run tapers with rear discs?
I have just the solution for that...
@@InvincibleExtremes are you still making videos?
@@chadvetter8190 neck deep in fab work, and other work. hoping to get back to the videos eventually.
You were one of the first shows I used to watch.
@@chadvetter8190 thanks
They make u buy ball bearing, because u will buy a set Year after Year. It's mostly a Retail market Corruption
I love the opener!! Thanks for the heads up on this. I've long been saying "car shows" and museums are the death camps for real cars. Drive em!! and keep the demand up for OE quality parts. Mopar spent lots of money and great engineering minds making the systems to endure. Upgrade with OE parts not aftermarket sales pitch.
You can't sell a bunch of them if they never fail! Crazy they are that spaced apart
Ball space is very important.
front wheel drive wheel bearings are crap, I can't even count how many I've replaced!
Seems most stuff is designed for the barret Jackson, generally trailered, only has an old car to show off money type dude.
Good to know!!! thank you for letting us know. I’m sure lots of people have fell for it. No school like the old school.
Since you have no frame rails for leafs, are you going to use coils to support the super shit box? Lol
Never had an issue in 10yrs it must be the donuts you do.
Drag racing doesn’t put enough miles on them
Thanks for the shout out!
About time you let us's help you'ses slackerz.
Great advice!
👍👍
💯
Chris can you run that past us again!
Follow up video on setting up the axle and adjusting the preload?
just FYI tapered bearings fail too not as often but the do I lost an axle on my 84 f-150 4x4 on the rear it literally slid out of rear housing while driving but I stopped on the side of nowhere went and had a new one put on but the can fail and it can be ugly
Good to know
🤟🤟🤟🤟
You go Birdsong! Watch and subscribed to all your shit😎✌️
Hey you should get contact that Mark warman He's looking for one of those cinnamon colored 1970 chargers to recreate the one he had Hell the one you have might be the one he had cuz who knows????😅
I'm sticking with drum brakes on the rear of my 68 belvedere 4door. The drums need replaced. So I'm thinking of finding the 11×2.5 rear drum brake set up off of a Cbody. Maybe they'll work Maybe not. I'm thinking clearance issues with the leafsprings.
Who’s the dude in the background?
👍👍
AMD should sponsor your channel.
There's nothing better than Mopar engineering they are overkill by a long range!!!!!!!
Roller bearings are better as the load is spread over a greater area.