Hey there gear heads... been hearing, and feeling these noises that come from the rear...binding and pressure release type sounds, kinda slam bang when put into gear and sometimes when gears change from 1-2 or 2-3, just hear this sound in the rear end...take the cover off the rear drain the greeze...and notice that there is a lot of back slap, this posi was installed professionally by GM and has 10 000 miles on it, should I expect this kind of wear and tear on the rear in this short a time? Check out my Vid I posted on Youtube....>>> Pinion Ring Gear Mesh Noise Identified Looking for advice in Youtube Land - YouTube Back-Lash 12 Bolt.jpg