86 RX7 HELP I HAVE INTERMITTEN VIB FROM 10 MPH UP ABOUT 30 % OF THE TIME. NEVER OCCURS WHILE IN MOTION , ONLY AFTER I STOP IE STOP SIGN/ LIGHT. ALL BUSHINGS IN REAR ARE OK TIRES AND WHEELS ARE OK. ANY THOUGHT OR IDEAS

 

have you checked all the u-joints from the tranny back? Try to move the driveshaft by hand with no load on the shaft and see if you can feel it move. a bad joint is usually easy to feel.

 

YES ALL THE JOINTS SEEM TIGHT THE PROBLEM NEVER OCCURS WHILE IN MOTION . WILL STOP AND START WHILE AT A STOP. I RACKED IT PUT IT IN GEAR AND NEVER COULD GET IT TO OCCUR. SO CONFUSING , IM THINKING OF JUST BUYING A USED DRIVE SHAFT BUT IT LOOKS LIKE A BIATCH TO PUT IT IN . THANKS