New 1991 Suburban

[lowrollin70gmc]

I'm normally over in the 67-72 trucks side of things, but I'll take a shot here for a second.

I just picked up a 91 Sub 2WD 1/2 Ton for $250. Dented but mostly rustless body, runs, new battery and radiator, 350 and a 4 speed automatic. A good friend of mine was going to scrap it, but offered it to me instead. I couldn't pass it up for that price. Now to the point, I believe this rig should have a 700R4 or a 4L60 possibly 4L60E, and is there any indication from below which tranny it is? I plan to eventually swap this tranny in place of the powerglide in the 67 Chevelle I'm buying tomorrow (after selling my '06 cobalt).

Sorry for the long windedness (sic), but I'm pumped that I picked up another rig, and getting another tomorrow! Any help or diagrahms would be great.