Speedometer Gear Selection Information

200-4R Speedometer Gears

Drive Gears	Driven Gears
10 teeth - green # 36326	18 teeth - brown
11 teeth - orange #36329	19 teeth - white
12 teeth - red #36328	20 teeth - green
13 teeth - white #36327	22 teeth - gray
	26 teeth - brown GM#25524922
	27 teeth - black GM#25524923
	28 teeth - yellow GM#25524921
	29 teeth - green GM#25524924
	30 teeth - blue GM#25524925
	31 teeth - white
	35 teeth - orange
	40 teeth - black
	42 teeth - green
	43 teeth - purple
	44 teeth - dark gray
	45 teeth - light blue

Notes:

You will need a new governor gasket for the drive gear located inside the oil pan. The gear can be replaced separately by removing the retainer clip on the governor shaft.