Speedway Motors TH350 Master Speedometer Gear Kit

The Speedway Motors TH350 Master Speedometer Gear Kit is a comprehensive solution designed to cover all speedometer calibration needs, regardless of tire size or rear-end gear ratio. This complete kit includes a range of components such as 7, 8, 9, and 10 tooth drive gears, 18 through 22 tooth driven gears, a speedometer gear housing “bullet,” retainer clip, both SAE and metric bolts, a drive gear retainer clip, and four replacement O-rings for the speedometer bullet—making it an ideal all-in-one kit for TH350 transmission setups.

• Complete kit provides full speedometer calibration coverage for any tire size or rear-end gear ratio in TH350 transmissions
• Includes drive gears (7–10 tooth), driven gears (18–22 tooth), housing bullet, clips, bolts, and O-rings
• Ideal all-in-one solution for accurate speedometer setup and easy installation or repair

TH350/C Housing, Speed-O (7/8? Steel – Chevy Style “Bullet”) 1969-86