09 Chevy Silverado ent cab lt z71 the rear end has been replaced 3 times and getting READY FOR NUMBER 4 THERE HAS TO BE A PROBLEM WITH THE REAR END HOUSING OR THERE NOT SHIMMING IT RIGHT I'M READY TO GO BACK TO FORD HAS ANYONE ELSE HAD THIS PROBLEM I KNOW THERE IS 5 OF MY FRIEND WITH THE SAME PROBLEM THANKS JOE

Update from Jun 27, 2013: went back to the chevy dealer for the rear end again they pulled the diff cover at my request and found the gear oil was black and they said it the drive shaft come apart in side and said the rear end was ok till i found the carrier pin lose in case so know there calling in a regional supervisor to inspect it and i told them the ring and pinion back lash is to much and they said why dont you fix it your self and we will supply the parts and i said it not my job it for them to repair but they cant set up a the rear end there no specs i will update after i talk to the supervisor