OFFICIAL 2nd gen 4x4 front differential bearing vibration thread

I think someone already checked and it's the same front diff and old bearing part number.

 

So I have a leveling kit and 285's with aftermarket wheels. Am I screwed on having toyota fix this??

 

I have a 3" OME lift and I'm getting fixed.

 

Did you just tell them u needed it done or did u let them diagnose and decide for themselves? Curious because i will be doing the same

 

I told them the symptoms I was experiencing, that I read online that many other folks had the same issue, and I suspected the needle bearing was bad. They took the truck, diagnosed (confirmed) it on their own as being the needle bearing, and then located the TSB on their own. I drop it off Tuesday morning for repair now that parts are in.

 

That helps knowing that. Hopefully it works out.

Is your intermittent? Mine vibes when it first start driving but after 10 mins it SEEMS to go away. ..

 

I notice it most the first handful of miles I think. Not sure if I just ignore it after a while or what. Only notice it 35-45 mph though.

 

Yeah sounds exactly like mine... Who knows. At first I just thought it was the KM2's but they have different vibe all together.

 

My truck goes in tomorrow morning for the TSB repair and replacement of the needle bearing using the new TSB version.

 

Nice

 

Pretty sure I have this front differential problem, rubbing sound off and on between 30-45 mph....might be a dumb question but anyone know how long I can drive like this without causing major damage?

 

It's so easy to fix. Why all of the tire changing and lift removing?? Literally, takes an hour. Done.

 

YES. What he said.

 

I plan to just gonna have to wait till after Christmas... After the repair will it end up happening again you think or is it a pretty solid fix?

 

There's a thread somewhere with a few guys who have nearly 100k (I think around there) miles with no more vibes.

 

Sweet! Thank you! Just wanted to be sure I'm not gonna cause serious damage waiting awhile.

 

If some one has vibration, quite bad for that matter only in 4x4 above 30km/h, what would be the general consensus as to the cause ? I think its the play in the Number 3 front differential support. I removed the skid plate and checked how much play is present. There is definitely play but how much play is normal

 

Nah, you're good. Outside chance that the bearing surface on the driveshaft could get shitcanned but not super likely. Mine was humming like a bitch and that ECGS bushing sat on my toolbox for 3 months before I could finally un-lazy myself enough to replace it and mine was fine. Probably 20k miles worth of vibrating.

 

Different ball of wax completely.

 

Good cause there's a chance it'll sit around awhile here after ordered...