Yeah I've been doing some digging but my google-fu is a little weak, everything I've dug up so far pretty much says to ID it by size, shape and bolt patterns. I'll do what I can to get out to it today before it gets too dark.
Yes it's in the 51, it's a 4 speed and as far as it being stock I couldn't tell ya, not a whole lot on that truck is stock lol.
