[pete3799]

Originally Posted by Sboxin

Well . . . from the threads you posted . . .

This is the rest of the story - - -

http://forums.pelicanparts.com/porsche-911-technical-forum/701647-mystery-quiet-clicking-now-loud-clicking-gear-whining-trans-diff-pics-10.html#post7388549

He rebuilt the transmission and the noise went away . . .

You may have a different problem - but this looks like the most likely solution.
It is also possible that the shift coupler needs adjusting so the internal shift fork doesn't rub
-- and perhaps change out the fluid with new Swepco 201 or other suitable type of your choice.

Regards,

That's the thread i told you about earlier Andrew (Finally found it and i just got done rereading it when i found this thread).
Sounds an awful lot like your problem.
For anyone following along this is not a CV issue (all 4 are new ) not emergency brake related (disassembled and checked) not sway bar related. Random clicking/ popping noise (not repeatable). Have run it up on jack stands (no noise) drive it a few miles and noise returns. I'm stumped......Anybody have any thoughts?