I screwed up...

[mopower]

cool, thanx for the tip try it tommorrow

[sleepychallenger]

appreciate the info,do you think it would have bent the flex plate?cause it was still bolted flat to the convertor ?

i would say yes if you were yanking on it pretty hard. sorry for the poor luck.

also might want to check the pinion nut. i have had one of those come loose on me and it only vibrated when i was up to speed as well. did the driveshaft hold the weight of the trans before or after being balanced? could be one of your u joints?!?

Put it up on stands and take off the rear tires and bring it up to speed. If it still vibrates take of the driveshaft and try it again.  I thought that you said that nothing vibrated till you pulled the tranny and put it back in.

   

[tactransman]

If it was the flexplate,it would vibrate in park when you rev it up.

[Bullitt-]

 other members had similar problems,
one turned out being a bad u-joint
http://www.cuda-challenger.com/cc/index.php?topic=20486.30
another a bent or out of balance drive shaft
http://www.cuda-challenger.com/cc/index.php?topic=22749.0
changed the pinion angle
http://www.cuda-challenger.com/cc/index.php?topic=4803.0

Nice when folks post the solutions to their problems.

[sleepychallenger]

If it was the flexplate,it would vibrate in park when you rev it up.

agreed. sorry, i posted last night then had to modify and didnt take that out after reading that it only does it when moving.