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  1. Vintage Mustang Forum
    Hey Everybody, I have a 65 mustang coupe with a 1990 5.0HO EFI Engine and AOD transmission. My rear end has a 4.11 gear ratio. I know that gear ratio affects torque greatly, However I want to know how much torque the car will have with the new rear end. I’m not sure how to calculate this. The...