MustangTek Gear Ratio Calculator Dashboard
Enter your tire transmission and differential data
Tire Diameter (inches)
Differential Ratio
Gear Ratio: 1st 2nd 3rd 4th 5th
enter manual Gear Ratio or select Transmission type ( 5 speed ) ( 4 speed ) ( 3 speed ) Toploader Wide Ratio Toploader Close Ratio Ford 3 speed Borg+Warner T10 CR Borg+Warner T10 WR Muncie M20-M21 CR Muncie M20-M21 WR TKO 600 (.64 od) TKO 600 (.82 od) T5 1984 T5 85-89 T5 90-95
Calculate this ratio
Use buttons to increase or decrease engine RPM - 1000 - 100 + 100 + 1000
Use Auto Shift to simulate automaticly running the selected gears up to the specified Shift Limit Auto Shift
RPM Shift limit Gears to Auto Shift 3 4 5
Gears to Auto Shift 3 4 5
5th gear
4th gear
3rd gear
2nd gear
1st gear
Reset gauges