Bad vibes man....
I've got a vibration that starts at about 60mph and gets worse (except for some harmonic pockets) with speed. It gets really bad on decel. And when I brake moderate to easy I can feel the rear popping, almost like it's binding but it does it regardless of pinion angle. I have a 9" with a BMR chassis mount t/a, 4.22 gears and a detroit locker. It's so bad at the top of the track that I think it's destroying my syncro in 4th.... I have a steel d/s, but it did it had the vibe with the aluminum d/s as well (it had a 1350 pressed on) though it didn't pop on the brakes. My locker has rounded teeth on one side but it shouldn't matter much on the highway at speed... I'm on the verge of replacing it anyway though because I can't isolate this damn problem... any suggestions?

