Ok guys I just picked up my first jeep. Its a 2000 cherokee, stock, 126k miles. the only problem I've run into is a slight vibration. You can't really notice it until about 50mph, then it kind of drones inside the cab. its not a severe shake, or violent by any means. However it just bugs the hell out of me when cruising on the highway. It's got new bfg wranglers on it, and everything else seems to be stock in the front and rear.

 

Does the noise change depending on road surface? How about when you swerve slightly left or right?

 

any lift on it?