The TCI 20 tooth speedometer drive gear fits Ford transmissions. It mounts on the transmission output shaft and pairs with a matching driven gear to give an accurate speedometer reading. The driven gear tooth count is calculated from the drive gear teeth, axle ratio, and tire revolutions per mile.
- Type: Speedometer drive gear
- Application: Ford transmissions
- Drive gear tooth count: 20
- Location: Transmission output shaft
- Part number: 881002
FAQ
What transmissions does the TCI 881002 speedometer drive gear fit?
It fits Ford transmissions.
How many teeth does this speedometer drive gear have?
It has 20 teeth.
How is the matching driven gear tooth count determined?
Driven teeth equal drive teeth multiplied by axle ratio and tire revolutions per mile, divided by 1001. Tire revolutions per mile equal 20168 divided by the tire diameter in inches.

