Cybin

Okay, so here's the thing guys... my 94 formula seems smooth and no problems up to like 80-85mph... but from there on up i get some terrible feeling vibrations in the shift lever... I can't really feel it as far as ride, or body is concerned... but good goddam somethin aint right! once I let it back down below about 85 everything is smooth again. Tell me my tranny isn't goin... please oh please!

stats: lightly modded 94 formula m6... 26K miles.

Thanks,

TwoFast4Lv

iTrader: (8)

Which Drive shaft? If it is steel you might be looking for a Aluminum one

Mine did that all the time after a trip to the end of the Speed-O Dealer replaced it with a 1LE unit and all was well

James Montigny

iTrader: (13)

Stock (steel) driveshaft will do that.
A broken tranny mount could do it too.

Either is easy (and cheap) to replace/upgrade with a ratchet and some jackstands.

Cybin

If it was tranny mounts woudn't I see a pronounced problem in all situations with the shifter?