Quote:
Originally posted by SilverHorseRacing:
You've still got other issues. If the rear is going that high, I would bet that in addition to bottoming the rear axle housing, it is also rotating the pinion upward somehow, that's about how far it would have to go to smack the tunnel.
Looking at this differently though, are you running any lateral location device (ie Panhard, watts link, etc?) If not, you may be experiencing side to side play that is showing up in the tunnel. What's the condition and material of the bushings in the rear control arms? Is the mark centered on the tunnel, or off to the 11-1:00 positions? Your original post mentioned hitting bumps. Is this in a straight line, or in a corner?
I have stock bushings from 1980. They look fine but I know they are prone to give.