O.K. bottom line, what years are the faulty tranny's so those who use the board can rest assured (or be frightened) that there's is not a time bomb! My '77 3speed auto(no overdrive) has proven bullet-proof going 250(ish)K miles before the reverse began to go, 100k later, still runs hard w/o signs of givin up the fight! I asume the troubles are from the 80's(yrs. please)only!??