Hey guys, I was wondering if I could take a 1985 AM207 off an automatic cherokee, and put in on either a 1990 ax-15 (and if possible, is it worth it), or on a 1987 pukey. Also, if it could be done, and is worth it (meaning it's not a POS), would I have to change DS length? Thx guys. Oh, PS, how do you tell what year a transmission is? Thx