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Samwel Flathead 3 to 4-Speed Conversion Kit - 0218001
Product info
- Item number
- MSH-971589
- Position
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.
- Category: Transmission gears
- Manufacturer part number: 0218001
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