1953-82 C1 C2 C3 CORVETTE SPEEDOMETER WORM GEAR.
THE STEEL WORM GEAR WAS USED IN 1953-1977 SPEEDOMETERS AND 1953-1958 TACHOMETERS WITH A REV COUNTER.
THIS IS THE THIRD GEAR IN THE HEAD.
FOR MANY YEARS GM SERVICED THIS PART IN PLASTIC.
THIS STEEL REPLACEMENT PART WILL OUT LAST ANY PLASTIC GEAR.
REMEMBER THERE IS THREE GEARS IN THE HEAD THAT CAN WEAR OUT, THIS IS JUST ONE OF THEM.
GM # 1586899.
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