TCI 880012 Speedometer Driven Gear, 39-Tooth Brown Plastic for GM Transmissions

The TCI 880012 Speedometer Driven Gear is designed to help maintain accurate speedometer operation in compatible GM automatic transmissions. This 39-tooth driven gear is manufactured from durable brown plastic and provides a reliable replacement solution for worn, damaged, or incorrectly matched speedometer gears. Its application-specific design supports proper engagement with the transmission speedometer drive system.
Compatible with GM 200C, 375B, TH425, TH475, and 700R4 transmissions, the TCI 880012 is suited for restoration projects, transmission servicing, and replacement applications. Correct speedometer gear selection is essential for helping ensure the speedometer reflects vehicle speed accurately, particularly when transmission, tire, or axle specifications have been changed.
The compact gear is supplied as one piece and installs within the compatible transmission speedometer assembly. Confirm transmission model, gear tooth count, and application requirements before installation to help ensure proper fit and dependable operation. The TCI brand is recognized for transmission components designed to support performance, serviceability, and drivetrain reliability.

Features:

• 39-Tooth Design: Provides application-specific speedometer drive engagement for compatible GM transmissions.

• Driven Gear: Designed for use as the driven speedometer gear within the transmission assembly.

• Durable Plastic Construction: Brown plastic material supports dependable service in demanding transmission applications.

• GM Transmission Compatibility: Fits GM 200C, 375B, TH425, TH475, and 700R4 transmissions.

• Replacement Application: Helps restore proper speedometer function when the original gear is worn or damaged.

• Single Gear Included: Supplied as one speedometer driven gear.