when I pickedup my car, it had a manual valve body in it - kickdown setup gone - has a 3500 stall converter in it (pretty sure) and stamped on bellhousing is TF3 - I eventually want to go back to stock put it in D and go - I've been told that 71 was the 1st year for the part throttle kickdown ( I think) - so the MVB would haveto be removed, and a part throttle KD put in, along with the correct linkage rod - I'm pretty sure on the 71 as first year for PTKD-but I may be wrong - been meaning to ask this very question- maybe we canget a definate - Joe