Typical vibration @ 85 up... 3.73s, checked and the driveshaft has some play towards the front, seems like there is some play on the trans output shaft? don't know how much, if any is allowed, seal isn't leaking if that helps... or maybe I should just throw a good aftermarket driveshaft on it- seems like that's what the usual consensus is, but with the d.s. having some play up at the front I thought I'd ask before wasting money.

 

Forgot all about this post... anyway, put on a denny's driveshaft this summer (great quality, btw) and the issue seems solved. There was slight play w/ the tailshaft bushing but apparently that's normal- now that I have a chance to think about it, excessive play would probably be accompanied by a leaky seal. Even at 50 mph it seems smoother, which I never noticed before.