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.

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RTS OE Speedometer Gear, For GM, TH400, 700R4, 4L60, TH350BOP, 34 Tooth Driven, Each

RTS OE Speedometer Gear, For GM, TH400, 700R4, 4L60, TH350BOP, 34 Tooth Driven, Each

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