Hi there I am the pround new owner of a 1988 rx7. I broke my front U-joint in half being silly. Now I got the joint fixed and the shaft balanced.Also, I replaced the tranny mounts and bracket, as well as got a tire balance. But I still have a harsh vibration in my seat and shifter. Im wondering if this is my rear u joint or maybe my back breaks are warped(they are in bad condition ) plz help I have no idea what this is! there is no tire play so I dont expect a wheel bearing. cheers

 

did you do the install yourself after getting the shaft fixed?
My thinking is that the tail stock on the trans is screwed too,due to the Front U joint going.

 

I did put it back in my self, hmm it slid in no problem and there was no chipped or damaged teeth from what I could see. I have been driving it down make any gnar noises.