1963-1981 CORVETTE SPEEDOMETER DRIVE GEAR - NATURAL 19 TOOTH. 4 SPEED MANUAL TRANSMISSION.
IF YOUR SPEEDOMETER READS TOO HIGH, A DRIVE GEAR WITH ONE MORE TOOTH WILL SLOW IT DOWN APPROXIMATELY 5 MILES PER HOUR.
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: 3987919.
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