Check the universal joints, the pinion bearing in the rear end, and if it's a 2-piece driverline, check the carrier bearing between the two parts of the driveshaft. I'm betting on the carrier bearing, if it's got one!
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!