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Automatic or manual??

February 13 2018 at 2:56 PM

cletus66  (Login cletus66)
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Response to Anyone have personal experience with OD trans behind a 428

I have a Tremec TR3550 behind a mild 390 in a 66 Galaxie, and it is an absolute game changer compared to a 4 speed manual. 3.35 first gear X 3.50:1 rear gear = 11.725 overall ratio for impressive takeoff. Overdrive 5th equals sub 2000 rpm at highway speeds.

 
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