EMan 928

My 1991 S4 vibrates when I accelerate rapidly. Also, a little vibration when cruising around 60 mph, then smooths out a bit. Motor mounts, trans mounts and torque tube all replaced in the last 1000 miles. I went to balance the tires yesterday and they said that there was a little inward wobble on the rear wheels. Suggested maybe taking it to Alloy wheel repair shop for straightening. I will do that, but to me it feels different than a tire wheel issue. Anything else I should check?

Chalkboss

Given all that work done have you checked tightness of all the cross member bolts and all bolts for that matter?