Exterior Components Body Panels and Components

TCI Automotive

GM Speedo Drive Gear 15-Teeth Grey Plastic

$72.73

SKU: T00M 880019A

In Stock
In Stock
Ships by Jun 14
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The TCI Automotive 880019A is a plastic drive speedometer gear designed for GM automatic transmissions. It features 15 teeth and is compatible with THM375/M39, THM400, and THM475/M40 transmission manufacturer codes.

This speedometer gear is intended for applications from 1965 to 1989. It is crucial to check if your TH400 transmission, which may use a pressed-on steel drive gear, is drilled for a newer plastic gear and retainer clip before ordering. Plastic gears require the use of a retaining clip.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandTCI Automotive
Part NumberT00M 880019A

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy