DRIVEN said:. Not sure what it came out of but the TH350 is a long tail version. Any guesses as to the original application?
Could be an f body or full size car.
On a side note, if you find an 8.5 rear end, you can use the stock driveshaft from certain f body cars (mid 70's ish) and not have to have one custom made to use the long tail 350 in the cutlass 8) . (that's what's in my Malibu, long tail thm350, 8.5 rear, Camaro shaft with conversion joints)