Ok all you Tranny Experts. I have a 84 - 700R4 in a 1970 Monte Carlo. 350 Motor, 2.02 heads, 350hp 327 cam, holly and highrise, 3.73 rear end gears. I built the tranny 18 months, 30,000 miles ago using premium parts, Alto 9 clutch 3/4 pack, Fairbanks 2/4 servo... Login to read more.