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TCI880003 - TCI Speedometer Driven Gear - GM 67-73 Powerglide, 76-84 200C, 71-84 375B, 76-79 475 - 21 Tooth, Red, 2.25"L x .305" Shaft x .800" Gear Type F

This product may require vehicle validation(s) for proper fitment. Please contact us to confirm correct vehicle fitment and usage.

Pricing: $17.14


The driven gear is located in a removable housing, usually in the tailhousing, of transmissions.

The following formula is very useful when there is no established baseline from which to work, such as replacing a transmission in a vehicle that was purchased without a driveline.

# Drive Teeth x Axle Ratio x Tire Rev. per Mile ÷ 1001 = # Driven Teeth
Tire Rev. per Mile = 20168 ÷ Tire Diameter In Inches

Use with GM housing number 345215

Application List



Shipping Information

  • Item Requires Shipping
  • 0.1 lbs.
  • W2.0000” x H1.0000” x L7.0000”

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