GOLKNHA TH350 Speedometer Driven Gear Kit - 19-Tooth White Gear with Housing, Seals & Retainer for GM Turbo 350

GOLKNHA's TH350 19-tooth speedometer driven gear and complete speedo housing kit is a direct-fit replacement that restores accurate speedometer readings and leak-resistant performance for GM Turbo 350 (TH350) transmissions.

When a worn or damaged driven gear or a leaking speedometer housing leaves your speedometer erratic or your transmission casing wet, this all-in-one kit gives you the parts needed to return the system to factory-like function. The white 19-tooth driven gear is matched to GM TH350 specifications and the package also contains housing seals and a retainer bracket so you can replace the assembly without sourcing separate components.

How does this kit restore speedometer accuracy?

Replacing the worn 19-tooth driven gear with the properly sized GOLKNHA component corrects tooth pitch and rotation ratio errors that cause false speed readings. Using the new housing seals and retainer bracket prevents slippage and play that can change gear engagement, so the speedometer receives a consistent drive signal.

• Exact 19-tooth geometry matched to TH350 specifications
• New seals eliminate transmission fluid contamination and gear drag
• Retainer bracket secures correct alignment under load

What comes in the box and what will I need to install it?

The kit ships complete with one TH350 19-tooth speedo driven gear, a speedo housing assembly, replacement seals, and a retainer bracket — everything to swap the driven-side components. Basic hand tools and a safe way to support or drain the transmission are required; professional installation is recommended if you’re not experienced with transmission work.

• One 19-tooth driven gear manufactured for TH350 use
• Speedometer housing with installed seals
• Retainer bracket and any included gaskets or O-rings

Will this fit my vehicle and is it durable?

This kit is designed specifically for GM Turbo 350 (TH350) transmissions and the white gear color denotes the replacement part finish. The components are built for typical street and light-duty use; inspecting fitment against your transmission casting and part numbers ensures compatibility before installation.

• Fitment: GM TH350 (Turbo 350) transmissions
• Color: white gear housing for easy identification
• Durability: new seals and bracket reduce leaks and movement

What after-sales support and warranty are provided?

GOLKNHA includes a one-year warranty and customer support to help confirm fitment or address defects. If you’re unsure about compatibility, contact customer service before purchasing to avoid returns or installation issues.

• 1-year limited warranty from purchase date
• 24/7 customer support for fitment and troubleshooting
• Instructions or guidance available upon request

Who is this for? This replacement kit suits classic GM TH350 owners, restorers, mechanics, and anyone repairing a faulty speedometer drive or a leaking speedo housing. It’s ideal for people who want a single-purchase solution that includes the driven gear, seals, and retainer bracket to bring their transmission back to reliable operation without chasing multiple parts.