Has there been a discussion about IDing tc's? Pictures? I have an '83 1/2 ton Chev. I guess it has a 208. Just out a deposit on a '86(?) 3500 single rear wheel 6.2 pu. It has a TH400, and an iron "monster" tc. I also recently bought the 3/4 ton axles off of a '77 'Burban. In the truck were two extra iron tc's. I've thought of buying a 700R4 with the modified output shaft to work with the iron t-case. 4.10 gears, O/D trans and life is good!