Also look at the rear transmission mount. If it has sagged, the driveshaft will have less of an angle and a greater tendency to vibrate.
If you have a two-piece driveshaft, check the rubber mount for the center bearing. You may have to run it in gear jacked up on a hoist to see what is moving around or vibrating.
Thursday, May 19th, 2011 AT 8:50 PM