I have a Clunk noise each time I accelerate and let off on the gas. Comes from the rear end. I jacked it up today and rotated a wheel CW then CCW a bit, and i can hear it in the rear end. Non posi 10 bolt rear with T-350 tranny. I already changed U-joints thinking they were the culprit, but that did nothing but give me a good feeling knowing that that I have new U-Joints.

Is this something to be concerned about?

John

Pull the cover and check again... easy. Time to change gear lube anyway... Could be slack in a(carrier pin, b(axle to spider gear or c(pinion to ring gear or d( all ... Select a, b c, or d for correct answer.