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1957-1982 Corvette Speedometer Cable Speed Gear 20 Teeth Blue

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Item ID: 672-001
GM Part #: 3987920
Availability: Out of Stock
Fits Years:
  • 1957-1962
  • 1963-1967
  • 1968-1982
$16.99
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  • Description

1957-1982 Speedometer Cable Speed Gear 20 Teeth Blue - OEM Number(s) (3987920)

Restore Your Speedometer to Correct, Accurate Operation. These Gears Fit In The Transmission and Drive the Speedometer Cable. We recommend checking your current gear for color and number of teeth. If your speedometer reads faster than actual speed, then choose a gear with one more tooth per 5 MPH error.  If it reads slow, then choose a gear with one less tooth per 5 MPH error. Generally used with 3.36 gear ratio and manual transmission. Can also be used with automatic transmissions.

Also known under these part numbers: (For reference only)

  • 32829
  • 3987920
  • 4337220
  • 531513
  • TM-154