if i'm right about my readings...there is an SM420 behind a 305 V6 on a '64 GMC. the truck is shot. but i'm hoping i can salvage the tranny, if it'll work. an OD would be nice, but for now, i just wanna get rid of the th350 behind a 292. i've been told that it will bolt up to a 235, 261, etc. that series..but not the 292-250. so...what all is involved w/ getting this to work??
