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Rear End Ratio Calculator

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Rear End Ratio - Speed - RPM - Tire Size Calculaor

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Fill in three of the 4 values, then click a "Compute" button. This is not a metric or overdrive transmission compatible calculator and don't enter letters. Experment with it. You can find out some useful information (how will changing tire size affect your speedometer reading?)

Enter the Engine RPM: 

Enter:  Tire Diameter, Speed and Gear Ratio
Enter the Tire Diameter (inches): 

Enter:  RPM, Speed and Gear Ratio
Enter the Speed (Miles per Hour): 

Enter:  Engine RPM, Tire Diameter and Gear Ratio
Enter the Gear Ratio - 3.0 for 3.0:1

Enter:  Engine RPM, Tire Diameter and Speed
This calculator is from Stegath Coachcraft.  All Rights Reserved.  The format of the calculator has been altered by The Corvette Action Center in order to blend in with the rest of the site, however the calculations remain unaltered.  The accuracy of this calculator and its applicability to your circumstances is not guaranteed.  You should obtain professional advice regarding the issues covered by this calculator from qualified technicians.
Copyright © 1996 Stegath Coachcraft  All Rights Reserved.