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Home  >  Products & Services  >  Motorsports & Aftermarket  >  Support Center  >  Gear Ratio Calculator

Gear Ratio Calculator

TREMEC GEAR CALCULATORS: Use the Speed Calculator below to compare TREMEC to your current transmission.

Select Transmission:
Engine RPM Enter your desired RPM for racing or cruising here.
Axle Ratio Enter your rear axle ratio here.
Tire Height (in)* Enter your tire height here. Use the Aspect Ratio calculator below if you do not know your tire height.
  Ratio MPH  
1st Gear The estimated speed you will be traveling based on the parameters you established and the transmission you selected.
2nd Gear
3rd Gear
4th Gear
5th Gear
6th Gear

TREMEC ASPECT RATIO CALCULATOR: Find your tire height using this calculator.

Enter the tire width in millimeters, the aspect ratio, the wheel diameter in inches, and Click on Calculate...
Tire Width (mm) Wheel Diameter (in)
Aspect Ratio (1-100)    
Tire Height (in) Tire Width (in)