Well I thought that it was the Pinion seal Guard/Shield that I had an earlier thread about, but To check I put a bead of RTV around it to hold it to the yoke. First test drive the noise was still there, and the bead was not broken . So after an extensive test drive really trying hard to tell where it's coming from, I am at a loss. This is as good as I can describe it: 1. It always happens when coming to a stop after running at hwy speed. As I slow down, I feel the detroit unload at about 10mph, and then at less than 5mph I hear the noise. 2. The Noise sounds like 2 or 3 pieces of 1/2" stainless tubing falls out from under the truck and drags for about 1 sec. 3. When I take back off after this has happens, I hear 2 or 3 single tic / tings, as I accellerate at low speeds. It's very random and can't pin it down. 4. Of course I have slid around underneath the truck and checked for anything loose. Shocks, U-joints, U-bolts, springs, calipers, brakelines, etc. etc. All I found was the afore mentioned Pinion seal Shield thingy was loose. I have shaken the whole truck back and forth but to no avail. I guess I will try torquing everything again when I get home to be on the safe side. I am so stumped as to what it may be. Could it be something that is in the rear diff that settles to the bottom as I stop and gets slung up against the cover by the ring gear? I am grasping at straws here. Sorry for the book, and thanks for your help.