When you change the torque transmitted through the driveshaft, the shaft will try to flex. If you don't have a good solid center support and bearing, you'll hear the driveshaft banging around more as you try to transmit more torque through it.
Kleb hit this one on the head... Gary Thompson Georgetown, TX 1995 E320 On 11/9/06, Kaleb C. Striplin <[EMAIL PROTECTED]> wrote:
flex disk or center support.