Transfer case noise when in Reverse with brake on

[hyrific]

Ok so I tested the U joint again and there does appear to be to much play I drove the car another 200 miles and noise increased. So I am going to replace and see if the noise is gone. Need to check if the alignment to rear axle is correct. Owner before me put in some suspension parts and perhaps the alignment is off now.
The U joint in the driveline is a aftermarket with a zerk fitting as a side.

Will report back after U joint replacement. The trans mounts are dirty as can be but don't appear to be cracked etc. Bolts seem tight.