'16-'18 Front Differential Cyclical Groaning/Grinding Noise TSB

That is the outer (wheel bearing) not the one, that is causing problem. It's the inner needle bearing, in diff that is causing the problem.

 

That ^

 

Thanks - good to know for sure.

 

Needle bearing, then bushing. Needle bearing is like $19

 

Thanks - more like what I was expecting

 

Does anyone have the OEM part number for the needle bearing?

 

I probably got it in my glove box still. I'll try and look at lunch. Sure somebody knows it off hand and will beat me to it

 

Is there a certain build date this effects? I want to make sure I'm not missing anything in my truck.

 

You're probably good. Seems only some early 3rd gens have the old needle bearing, Toyota clearing their stock of differentials. They didn't have enough coming back to stop using them. Not even everybody that lifts it with the old needle bearing got the vibes. But I'm betting money you're good. Sure somebody else will chime in.

 

50k on my lift 16 Trd OR.74k total. No vibrations. This forum makes me feel like I got the only good 16.

 

Dealer wouldnt replace mine because of 2 inch lift. Put ECGS bushimg in my self on Saturday...

 

That's BS. Dealer did mine no problem. Kick em in the nuts

 

I wanted too. But mechanic foreman told me if Toyota found out it was lifted they wouldn't pay him for the work. Plus all they would do is put another needle bearing in.

 

I call BS on him

 

Took mine in 3x for the groan every time the dealer said "Your BFG AT KO2 tires, are over sized with uneven wear are causing the noise" took it back with OEM wheels and tires and dealer states their is an insulation pads they can install to dampen the noise. Toyota needs some better techs

 

I had an OME suspension kit installed at 3,500 miles (887's, Nitrochargers, medium duty Dakars) by a reputable off road shop and experienced vibrations immediately in the 15-25 mph range on acceleration and deceleration. When I brought it back to them for the 500 mile check they took the spacers out and it more or less mitigated the acceleration vibrations, but still have them noticeably on deceleration. Their concern was mitigating the vibrations when the truck was under power. They indicated that sometimes vibrations on deceleration is to be expected. I have also had a low howling noise coming from somewhere on the truck at all different speeds, my best uneducated guess was the drive line. After two trips to two different dealerships they essentially ignored or brushed off my concern regarding the howling/whining. Upon the third trip to the first dealer (and a new service manager) they indicated that there was a TSB for a front differential replacement, with one in his shop having the replacement performed, and that that may be the issue. It is noted on my service records that I have an aftermarket suspension/lift, and I a currently at 12,200 miles. My truck is scheduled for diagnostics this Monday, 02/18.

 

Spacers removed = problem solved. It was that simple for me. The ride is so much better too - noticed it immediately.

 

Duh fuq? Insulation pads? Like maxipads?

 

If it goes away when you engage 4x4, it's your needle bearing. Easy to diagnose

 

dealer replaced my front diff and cv axles under warranty on my 16 they had it a day and gave me a truck to drive no more noise only had 5800 miles on it the service manager told me my front end only had about 8 ounces of grease in it as there were many shipped from factory that way they all so changed my rear and transfer at no cost i guess i found a good dealer and yes i have a lift and larger tires they never said anything about it