1955-1960 CORVETTE SPEEDOMETER DRIVE GEAR - RED 21 TOOTH. FOR POWER GLIDE WITH 3.55 REAR AXLE.
IF YOUR SPEEDOMETER READ TOO HIGH, A DRIVE GEAR WITH ONE MORE TOOTH WILL SLOW IT DOWN APPROXIMATELY 5 MPH.
THIS NYLON GEAR MUST BE USED WITH 54054 (STEEL SPEEDOMETER DRIVE GEAR FOR 3.08 TO 3.55 REAR ENDS). SEE BELOW.
GM PART NUMBER: 3708142.
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