rear end noise

What is your question?

i have a 04 serento with a noise when turning it is coming from rear of car. it makes a growling noise and rear wheels lock up when turning left or right at low speeds at higher speeds i dont notice it does anyone have a idea i have cleaned out rear diff. and sanded down shims in rear end and cleaned clutches still makes noise also if i take out rear drive shaft noise goes away any ideas please email me at hayn5951@charter.net