I have a new (unused) Gerodisc differential for the Cobra 2000 R (there were 305 units manufactured - this is 1 of the 5 made that were not put into cars). If anyone is interested I can e-mail pictures / discuss price. I was going to put it in my '3 cobra, but then found out that it required unequal lenght half shafts. Before posting it on ebay, I thought I'd start here, as this forum is more vehicle specific.