MagnumTL

Hello everyone and Merry Christmas! I have a 2010 1500 Silverado that has starting bumping real hard when I accelerate from a stopped position. If I ease on the gas, starting real slow it does not do it, however, a normal acceleration it will. Any idea what it could be? Rear drum brakes, u-joints, rear end, transmission?

73shark

Welcome to the forum. I'll move your question over in the Silverado section where you will get more views.

hanky

Where do you believe the bump is loudest/strongest? This might help narrow down some.

Don't forget to check the motor and trans mounts..