YJ Vibration

[LRwrnglr]

Whenever I shift into 4th from about 40-47 mph theres this bad vibration. replacing u-joints but noticed that isnt it, could it be the rearend or the tcase?? thanx

LR

 

[LGR]

you lifted, if so, how much?

 

[LRwrnglr]

Nope, no lift, stock as far as i know. just a regular everyday driver.

 

[Snitty]

you might have a misbalanced driveshaft.. or misbalanced tires

 

[Bounty__Hunter]

Check the transmission mount, and engine mounts second.