Rear Drive Line Vibration

I am having a rear drive line vibration around 75 mph. I have checked the u joints they all seem to be good. I just had all the tires balanced as well but the problem still persists. Any suggestions. Thanks

 

what model is it ? if it has a lift in the rear it may need to have the carrier bearing shimed down or carrier bearing may be bad but usually it viberates more when going from a dead stop

 

It is a extended cab. I do not have a lift on her.

 

might have to rebalanced your driveshaft.

 

you may have a broken belt or something in one of your tires. how old are the tires are they a good name brand tire?

also what kind of condition are the leaf springs in, weakened or flat springs will change pinion angles causing rear vibes.


check your carrier bearing to, if thats in shit condition that will definitly cause vibes

just throwin out ideas

 

i had similar problem

1800 clams later there is a new rebuilt rear end, balanced drive shaft, new u-joint, and new carrier bearing

if there is any vibration now, then she'll be driven off a cliff

 

the tires are BFG all terrains. I don't think any of the belts are broken because i rotated the tires and had the same vibration but the tires only have about 20% life left. I will check the carrier and the drive shaft.

 

Wow I fought that problem for months and come to find out...
I put bigger tires on my truck and the retards at discount tire put 36 PSI in all my tires so I lowered it down to factory 26 front and 29 rear and it went away for the most part. But not all of the way. So then I experimented a little more and found that 28 PSI all around worked out way better.
Then
I also replaced my shocks and struts, after I did that my truck rides like new. No dirveline vibs!!!

 

I will check my tires psi Thanks