GOLKNHA TH350 Speedometer Driven Gear & Housing Kit — 19-Tooth White with Seals & Retainer

GOLKNHA's white 19-tooth speedometer driven gear and matching speedo housing kit replaces worn TH350 components to restore accurate speedometer readings and leak-free transmission operation.

If your classic GM Turbo 350 (TH350) is showing erratic or dead speedometer readings, a worn driven gear or deteriorated housing seal is often the culprit. This all-in-one replacement bundle contains a precision 19-tooth driven gear plus a complete speedometer housing kit — including seals and a retainer bracket — so you can rebuild the speedo drive as you reinstall or service the transmission. The kit is designed for direct fit on TH350 transmissions and aims to provide reliable engagement, better sealing, and consistent speedometer performance.

How does this kit fix speedometer inaccuracies?

Speedometer errors usually stem from damaged gear teeth, flexible or missing seals, or a loose retainer. Replacing the driven gear and housing components ensures correct tooth engagement and a stable drive connection between the transmission and the speedo cable.

• 19-tooth driven gear matched to TH350 specifications for accurate rotation rate
• New seals reduce fluid leakage and protect the gear mechanism
• Included retainer bracket secures the housing and prevents movement that can alter readings

Will this part fit my GM Turbo 350 transmission?

The kit is built specifically for GM TH350 (Turbo 350) transmissions. Always confirm your transmission model and year before purchasing to ensure compatibility and correct fitment.

• Designed to replace the original TH350 speedo driven gear and housing
• Sold as a complete kit for straightforward replacement during transmission service
• White finish for easy identification during installation

What comes in the package and what tools are needed?

This shipment includes the 19-tooth driven gear and a complete speedo housing kit with seals and a retainer bracket. Basic hand tools and common transmission service tools are generally sufficient for installation.

• One TH350 19-tooth speedo driven gear
• Speedo housing kit with seals and retainer bracket included
• Hand tools recommended: socket set, screwdrivers, seal driver or appropriate drift, and torque wrench

How durable is the replacement and what support is available?

The parts are manufactured to restore mechanical engagement and sealing for prolonged service life. GOLKNHA offers after-sales support and a limited warranty to help address fitment or quality questions after purchase.

• Durable gear teeth profile matched for TH350 duty cycles
• New seals help prevent transmission fluid leaks around the speedo housing
• 1-year warranty and 24/7 customer service from GOLKNHA for assistance

Who is this for: This kit is intended for owners, restorers, and mechanics working on GM Turbo 350 (TH350) transmissions who need to replace worn speedometer drive components. It's ideal for classic car restorations, transmission rebuilds, or anyone troubleshooting inaccurate speed readings or housing leaks on a TH350-equipped vehicle. Verify your transmission model before ordering and keep the included parts and seals ready for a clean, reliable installation.