[onebluemcm]

It's 100% the diff. Only does it during very tight turns, typically a low speed, in parking lots etc. It happens at time when there is the greatest differential rolling speed between the rear wheels, thus the tight turns. It's a diff groan, what else can I say. What else could it be? Car is otherwise 100% and I have been all through this car, top to bottom, front to back. It's not a brake issue. It's not a suspension issue. It's not any other part of the driveline. You are making me second guess myself, but I shouldn't, it's the diff.