Samwel 3 to 4-speed conversion kit for 45″ Flathead

Description

Samwel3 to 4-speed conversion kit for 45″ Flathead  971589

fits  41-51 WL & 32-63 G Servi-Car (NU)

Will enable you to turn the stock 45″ 3-speed transmission into a 4-speed. 1, 2, 3 are smaller and 4th gear is identical to OEM ratio to get closer to the optimum RPM (Torque) at different speeds. Fits 3-speed 45″ (750cc) Side Valve models. 41-46 shift pattern. Can be used with later models when converted to footshift or the tankshift pattern is converted to 41-46 style. Note: The stock transmission side cover (kickstart cover) must be machined to accept the larger first (low) gear. Optionally a special 4-speed transmission side cover is separately available as 971591.

 

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