TCI 880011 Speedometer Driven Gear, 38-Tooth Blue Plastic for GM Transmissions

The TCI 880011 Speedometer Driven Gear is designed to provide accurate speedometer operation in compatible GM automatic transmissions. This driven gear features a 38-tooth design and is manufactured from durable plastic with a blue finish for easy identification during installation or service. It is supplied as one gear for replacement or transmission calibration applications.
Compatible with GM 200C, 375B, TH425, TH475, and 700R4 transmissions, the TCI 880011 helps restore proper speedometer drive performance when an original gear is worn, damaged, or incorrectly matched to the vehicle. Correct gear selection supports reliable speed readings and helps maintain proper compatibility between the transmission output and speedometer system.
Designed for straightforward installation, this TCI speedometer gear is a practical replacement component for transmission rebuilders, automotive technicians, and enthusiasts. Verify transmission compatibility and required tooth count before installation to ensure the gear is properly matched to the vehicle and drivetrain configuration. The recognizable blue plastic construction and 38-tooth profile make the TCI 880011 easy to identify when servicing compatible GM applications.

Features:

• 38-tooth driven speedometer gear

• Durable plastic construction

• Blue finish for easy identification

• Compatible with GM 200C, 375B, TH425, TH475, and 700R4 transmissions

• Designed to support accurate speedometer operation

• Sold individually