Speedo Driven Gear GM 35 Tooth Orange

The Speedo Driven Gear GM 35 Tooth Orange by TCI is a vital component for General Motors vehicles that utilize mechanical speedometer systems. This driven gear works in conjunction with the speedometer drive gear to convert the rotation of the transmission output shaft into accurate speed readings displayed on the dashboard. It is an essential part for mechanics and transmission builders during the rebuilding or retrofitting of GM automatic transmissions.

Constructed from a durable nylon composite, the 35-tooth design features a distinctive orange color, which serves as a visual identifier to prevent installation errors. This tooth count is crucial for speedometer calibration, ensuring that the correct driven gear is paired with the specific drive gear of the transmission for accurate mile-per-hour readings and proper odometer function. The compact profile of 2.85 x 2.1 x 4.1 inches fits standard GM speedometer cable housings, while the lightweight construction of 0.13 lbs minimizes rotational inertia.

This replacement gear is particularly beneficial for GM transmission rebuilds, especially in models like the TH350, TH400, and related Powerglide variants, where speedometer accuracy is critical for vehicle performance and resale value. Installation is straightforward, making it an accessible choice for both professional mechanics and DIY enthusiasts looking to ensure their vehicle's speedometer functions correctly.