Speedometer Gear, Various Tooth Counts, 1966-77 Ford Bronco

Speedometer Drive Gear – 16–21 Tooth – 3-Speed Manual & Automatic Transmissions

When tire size or differential gear ratios are changed on your Early Bronco, the factory speedometer reading becomes inaccurate. This can be corrected by installing a speedometer drive gear with a different tooth count. Each tooth on the gear changes the speedometer reading by approximately 5%.

Adding a tooth decreases the speedometer reading, while subtracting a tooth increases it. Available in a range of 16–21 teeth, these gears allow you to properly recalibrate your speedometer after drivetrain modifications. Compatible with 3-speed manual and automatic transmissions.

Features

• Corrects speedometer readings after tire size or gear ratio changes
• Each tooth equals roughly a 5% calibration change
• Available in 16–21 tooth configurations
• Fits 3-speed manual and automatic transmissions
• Simple, effective calibration solution

Select the desired tooth count from the available options.