I was driving up a minor, what I consider anyways, hill and all of a sudden it was like I was in neutral but the sound of grinding gears was loud as all sh*t. I let off the gas and with a bang as the engine came to idle the truck was in gear again. If baby it from a stop it is ok but if you get a little into the throttle it grinds and no movement. Also I think I pooched the rear locker!!! When I go around a corner I have to coast or the rear bangs and the vehicle shakes and pulls a bit to one side but in a straight line there is no problem. Any ideas?????