@NickTransmissions I've got a 700R4 question for you. If it matters the truck in question is a 1984 C20 305 - 700R4 - 3.41 rear end, that one day I'll change to a 4.10 or 4.56. Transmission was rebuilt around 20K ago, it is an original 1984 unit it got the standard heavy duty rebuild, I can...