my 1984 olds delta 88's stock thm200 blew and i need a new tranny i been lookking towards the thm350 cause i heard its a straight drop in but i also i found out it could be 6, 9 or 12 inch long. not including the tailshaft its 21 5/8 vs. the thm200 which is 28 1/4 all around. if i get a thm350 with a 6in tail shaft thatll be 27 5/8 i know ill be off by about 3/4 inch tho. but bac to the main question. what cars carry the thm350 with 6 in tailshaft and fit olds 307 motors