The Spicer TTC Key Countershaft, part number 500010-8 or 5000108, is a genuine Spicer TTC transmission component sold by Pro Gear and Transmission. The countershaft key is a precision internal drive component that locates and locks gears or bearings to the countershaft, maintaining proper rotational alignment within the transmission gear train. Sourced directly as a Spicer TTC part, it is intended as a direct-fit replacement for the original component. Call us to confirm this is the correct part for your specific transmission before ordering.
Used in 15 Spicer Transmission models
Features
Genuine Spicer TTC transmission component
Part number 500010-8 or 5000108
Internal countershaft key for transmission gear train alignment
Direct-fit replacement for the original Spicer TTC part
Sold by Pro Gear and Transmission
