[convincor]

Originally Posted by blykins

I disagree, if a driveshaft is out of balance at a certain rpm, it will vibrate. I had a 2002 Mustang GT that I put a 4.10 gear in. Since the driveshaft was spinning fast wtith the low gear (and it wasn't balanced for it), at about 85-90, it would be spinning in a range where it would vibrate the rear of the car.

By all the time I mean at the said rpm. Doesn't alway's do it at said rpm. Only once in a while then stops without rpm change.