8.25-3.21 suregrip

Hello boys n girls,

I need some help please!

When I put the Duster( auto tranny) in reverse I get a stiff clunk or bang noise.
Sounds like it comes from the rearend. I wonder if it is u joints
or something internal on the rearend. Only happens when I go into reverse.

Any body got any ideas or know what the cause is?