Fingers crossed, my 3.42 1st gear Super T-10 has lived with the 406 on my 81 T/A for both drag racing and autocross. I've only used street tires on it and have kept more pressure in the tires as a safety precaution. I do have a much stouter iron case T-10 1B (over the counter performance tranny) that will be going in the car sooner than later.
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 Johnny US Army Retired
1978 T/A 463 Pontiac, KRE 74cc 292CFM D-ports, Lunati VooDoo, V-max lifters, TKII, ATM 850 E85 carb, TCI TH-350 race tranny, 3600 converter 3.73 12 bolt 11.63@116.68mph
1981 T/A 4-speed 406 Pontiac, Merrick ported 6X heads, Comp 270S cam, Crosswind intake 750 Street Demon, 3.42 30 spline Eaton posi street car.
1980 Formula 350 Pontiac back burner project
1972 LeMans 350 Pontiac
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