95 tahoe clunking sound

[tahoe0715]

have 95 Tahoe making clunking sound only in reverse, when hit gas hard from a dead stop. thought was rear pulled apart and was bad so rebuilt it but still doing think the whole axle is dumping anyone ever deal with this?

 

[jayvernon]

U joints

 

[JBLeeds]

Had the same problem, replaced u-joints, took care of the problem.