Wednesday, October 7th, 2009 AT 10:59 AM
When starting out from a stop sign you hit the gas at a moderate take off there is a tink sound comming from drive shaft. On a slow take off there is no noise. On a fast take off there is no noise either. Does this with the air on or off. Replaced the u joint, s on the rear drive shaft 2 of them and inspected the support bearing spins freely. No gritty feel smooth and inspected the front drive shaft u joint in good shape. Lighty grease the slip joint shaft going into the transmission. Replced the oil in the rear end with 80/90 weight gear oil. I was told this is a 2 piece drive shaft alumn insert with steel outer dont know how true this is? Also put the truck up on the rack and ran it threw the paces with no load on the tires and did not here it. Tape a rage on the back half of drive shaft and deadened the sound. So what is the next step for finding this problem.

