Rebuilt Differential Help

[walterL]

Hi Guys. I just rebuilt my GU4/G80 read differential on my 2011 Tahoe. 1st couple of days all was fine, super quiet, no rattling, clunking, grinding, all was perfect. Had to run some errands last night and when I went to turn into a driveway there was like a loud pop/clunk came from the rear area. When I went to back out and turned sharp to back out of the space it did it again. Then I had to take a narrow hard curve path to drive around the building to leave and the whole time I have the wheels turned it did it a couple more times. When I got back out on to the road and got straightened up, all drove quiet and great again. It does fine in soft curves, going straight, or backing straight, but if I have a hard curve or have to turn sharp like to get in a parking spot, or to turn in a driveway, loud pops and clunks. What could it be? I really need help in a big way with this, PLEASE!