metroracer Posted January 23, 2023 Report Share Posted January 23, 2023 Racers, How do I Calculate the "Final Drive" Rear Gear Ratio w/ the Transmission Chosen Drive gear ratio? For Example !!!! I have a 1.68 Second Gear in a Three Speed Saginaw Trans. w/ a 3.55 rear gear ratio.... What is the Final Drive Ratio would that be? & how do calculate that Equation? thanks racers.... Quote Link to comment Share on other sites More sharing options...
TBone Posted January 23, 2023 Report Share Posted January 23, 2023 5.96. Simply 1.68 x 3.55 = 5.96. This is how I think it through. Engine turns 1.68 times to turn the transmission 1 time. Then the transmission turns 3.55 times to turn the wheels once. So each of those 3.55 revolutions of the transmission is 1.68 revolutions of the engine. So you have 3.55 x 1.68. Quote Link to comment Share on other sites More sharing options...
metroracer Posted January 23, 2023 Author Report Share Posted January 23, 2023 Yes, Quite Simple indeed.... thanks Big Guy.... Quote Link to comment Share on other sites More sharing options...
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