Gregg and Russ,
There is a Porsche clearing house near me(Atlanta/Gainesville area), and they contacted me about a 930 LSD. I had found one by the time they contacted me. I can check with them. My contact is a 930 nut, and does a lot of work on them, rebuilding and such. I also have a contact in California who is now retired, but is a certified porshe mechanic and racer of 930s. He is rebuilding my unit as we speak and it should be back home this week some time. He is rather hard to get hold of, but is very good. Once it arrives here, I will be selling my other 930 LSD.What size is the rubber on those 15s, and how much are you asking? You can email me or post it here.
Bill