Ok so I have a vibration in the rear between 85-100mph, and a very slight vibration in speeds above that. Same results with 2 different sets of tires. Wheel bearings are fine. I put on new rear springs, shocks, insulators, and rotors about 15k miles ago. I'm thinking the rear beam bushings (which unfortunately aren't available).

Anyone ever get vibrations from worn out rear beam bushings? Thinking about getting the ones Powell offers that have a spherical bearing. I already have his front control arm bearings, and they are a great product.

 

get your tires balanced, or maybe a bent rim