URS4 transmission problem.

[BBBurban at aol.com]

    My friend has an 1993 S4 with a strange sound in the transmission.  When
in 1st gear it makes a sound similar to a worn CV joint.  It also does this
in reverse, but not as loudly.  I believe this is done under power for the
most part.  We have removed the driveshaft and replaced the front CV and
inspected the rest of the shaft as well.  also have drained and refilled the
transmission and the oil looked clean.  The noise seems to be coming from the
rear of the transmission.  I pretty much think he is going to have to have it
taken apart and looked at but anyone who may know what it is please let me
know your opinion.

Thanks

Hank