hey fella's. I'm new to the whole caddy thing as I'm a Mopar man, but I just got a 71 caddy eldorado so here I am. quick question. I found out I have a small leak in the transmission oil pan. I was told that it has a THM 425 transmission. is the pan from a TH 400 pan the same as the 425? I tried napa and a local tranny shop but they said they could'nt order one. any help would be much apreciated. thank you