96 cherokee. have a vibration I've been trying to track down. Its roughly from 55-65. roughest at 60.

Everything seems to be tight. tho I'm gonna jack it up and pry on the wheel tomorrow to recheck ball joints. was test driving threw it in 4x4 and it seemed to dampen the vibration. Couldn't really notice it till 70 and still wasn't very strong.

Any idea's of where to start looking?

 

Get your tires balanced.