Front Differential Rumble - East Coast GS for the fix?

Looking for a permanent fix to the rumble/vibration in the front differential. East Coast Gear Supply seems to have a solution with replacing bearing with Bushing. How many have tried this and has it been a successful fix to the problem? How tough is it to pull out bearing and install bushing.. I'm assuming you need to buy removal tool and insert tool.

Thanks

 

i had the TSB fix done, replacing the needle bearing with a new needle bearing and knock on wood so far so good.

 

take the total amount of second gen tacos ever produced and subtract about 10%, that equals the total amount that have this mod roughly, give or take a couple. It works, watch the videos on ECGS website. Not hard, need puller, don't necessarily need installer. Can get same installer at Harbor Freight or just use same size socket if you have it. IIRC, the check was to maintain the drive speed window of vibration then switch on 4x4 and if it stops the vibrations then you need to replace the needle bearing. The diffs are cast and have too much tolerance which causes the vibs.

 

So Toyota just replaces with another stock needle bearing? Is this covered by Toyota? Mine has 45,000 miles.

 

Wow that's quite a few then. I did watch the video and looks relatively straight forward. Did you buy the new seals as well? How about CV axle, can you use same one or recommend new? It does seem to dissipate or stop when 4wd is engaged..

 

yes only if you are still under warranty.


FYI i did the ECGS bushing before the TSB came out. got like 40k miles on the bushing, zero issues no vibes nothing. Do it and dont look back.

 

I reused my seal, but I would get a new one. Long story short, I reused before on another truck and it didn't work out as well so save the headache just in case, they aren't expensive. The CV is fine and doesn't need to be changed. The hardest part is getting your CV shaft and spindle out of the way.

 

It is covered under the powertrain warranty so 6yrs 60k miles. There are tons of threads on it, do a search for it, I used to have the PDF for the TSB. I had to bring the TSB in and basically teach my Toyota dealership about it because they had never done one nor had they even heard of it. I had to go on a drive with the service manager to prove the sound to him, he had tried to state it was lift or the tires and I was like magnason moss act you can't deny based on there being a lift unless you prove that's the cause and the sound went away in 4wd so if it was the tires (which were stock tires and said they were feathered) then the sound would have been constant. Also it is a stock needle bearing but has a new part number. The differences are small.

 

Appreciate the info. Definitely think I'm leaning that way.

 

Good deal appreciate it. Yeah just replaced the passenger side and bought a re manufactured OEM axle from CVJ with upgraded boot. Just hoping I don't screw up getting that removal tool seated in there correctly, makes me a little nervous. I did watch the videos.

 

getting the CV out can be a pain but the key is pushing it back in and tapping on it after each try.

There is a lil C shaped clip that has to compress in order to get the CV out. you need the opening of the clip facing downward. Try prying it out or pulling it out via the inner cup if it doesnt want to come. PUSH IT BACK IN, turn it 1/6th of a turn, TAP ON IT, then try again. Pushing it in releases any pressure on the clip, and tapping on the cup makes the clip fall downward as far as it can go. Keep this up and you should be able to get the CV out pretty darn quick and easy.