I finally replaced the 98 Brighton propshaft with a new(used) one; no more slop in the u-joints. However, I'm still getting vibrations when accellerating, especially from 25-30 and 35-40mph. It smooths out in the cruise and once you let off the gas. BTW, no torque bind, if that matters. Maybe CVs or mounts?? Thanks.

CVs will most likely make noise when turning sharply and

accelerating, have you tried that?

 

DOJs** on the other hand will exhibit the problem you are having.

 

** Double Offset Joint - other end of the half shaft - next to the transaxle.

 

 

 

P.S. might be a kewl idea linking to your previous posts

How about the drive shaft universals and carrier bearing? they are usually the source of untraceable vibrations

 

 

nipper

Propshaft=front-rear driveshaft

 

U-joints & center bearing are smooth and tight; same symptoms as before so I'm assuming it's not the central driveshaft.

Rotate your tires and see if it changes

 

nipper