Originally posted by mbb41:
Originally posted by SVTFern:

BTW if it is the final drive then why would it only happen when I am on the gas and not when coasting in gear?





I would think there is a certian amount of load put on the gear when you are on the throttle. When you let off it would rest in a slightly different position therby making a different noise or no noise at all. This is just mental speculation though.



As Mark said, you load up one side of the gear mating surfaces, then when you let off, unloads. It is a natural thing for gears to whine as they wear, ever hear a muscle car with big drag radials and a high ratio rear diff? They whine like a mutha.

Christopher A. Wong chris@ctamotorsports.com CTA Motorsports