smythge

I've been struggling with a high speed vibration for the past few months anything above 75mph and the car would vibrate. I replaced the extension housing, u-joints, slip yoke, wheel bearings, tires balanced had the driveshaft balanced and nothing helped.

I began to read about driveline critial speed and finally broke down and bought the FRPP aluminum driveshaft put it in today and there is no more vibration.

There have been lots of posts on here with various soloutions, save your money and get the driveshaft. here is the article explaining the problem----------------> http://tccoa.com/articles/tranny/tra...n/page17.shtml

ct_white_stang

I just got an aluminum driveshaft too. My car seem like it shifts better as well.

stangladesh

what type of vibration were you experiencing? ie steering wheel or overall vibration.

smythge

It was a constant seat of your pants vibration similar to driving over rumble strips, but not as bad. You could feel it through the whole car, it wasn't a shake it was a constant vibration.