i have a 2003 chevy silverado 5.3L when i make left turns the back left tire seems to lock up or chatter. i have replaced the caliper brake pads i pulled the diff cover off and noticed nothin unusual i even removed the e-brake from tha side nothin seems to be workin anyone have any suggestions

 

sounds like the rear locker is locked, I had a similar issue but mine cleared up after going backwards several feet.

 

The differential may be going bad. Is it limited slip?Does you have the correct fluid in it? Did you put in the required limited slip additive if it is one?

 

Dont buy additive from autozone buy stuff from gm