tci speedometer gear, driven, 43-tooth, dark blue, style h, gm, 125, 200-4r, th200, 350, 375, 400, 425, 700r4, each

Are you making a change in tire size or gears? TCI offers the most popular speedometer gears, like GM drive gears, to calibrate your speed. These sturdy, plastic-driven gears are available in several tooth counts to fit your application. Determine your appropriate drive gear/driven gear combination and then check out TCI GM drive speedometer gears for accurate speed readings.