4th Main Drive Gear. Fits 4Spd Big Twin 1936-1976.
$383Stock main drive gear (4TH) 26 Teeth.* (1936-1976) loose rollars OEM 35065-65* Replacement 4th gears are made with wider drive slots and steeper lead-in ramps for more positive 3-4 shifting.
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Countershaft. Fits 4Spd Big Twin Late 1976-1979.
$99Transmission Countershaft(caged rollar – threaded end) OEM 35614-77* Andrews 4 speed gears, transmissions last longer, shift faster, and just plain run better.
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Countershaft. Fits 4Spd Big Twin 1941-Early 1976.
$99Transmission Countershaft(loose rollars) OEM 35614-65* Andrews 4 speed gears, transmissions last longer, shift faster, and just plain run better.
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Kickstart Shaft Bushing – Pair. Fits 4Spd Big Twin 1936-1986.
$67Features & Benefits:-* Includes O’Ring.* Standard Outside Diameter is .940in..* Sold as a Pair.* Replaces OEM # 33288-37Proudly Made in the USA by JIMS !
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Countershaft Gear. Fits 4Spd Big Twin 1936-1976.
$320* OEM 35700-36 (loose rollars)* Replacements for stock countershaft 3rd gear cluster. * With Andrews 4 speed gears, transmissions last longer, shift faster, and just plain run better.
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Transmission Mainshaft. Fits 4Spd Big Twin Late 1984-1986 with OEM 4 Stud Wet Clutch.
$515Features & Benefits:-* Made from high nickel alloy* Heat treated and shot-peened to give maximum durability & strength. * Replaces OEM # 35039-85
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Transmission Mainshaft. Fits 4Spd Big Twin 1937-64.
$494Features & Benefits:-* Made from high nickel alloy* Heat treated and shot-peened to give maximum durability & strength. * Replaces OEM # 35040-50
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Shift Fork, 3-4. Fits 4Spd Big Twin 1936-1986.
$55* Replaces OEM Shift Fork # 34158-36* One piece cold forged forks. Fully heat treated and black oxide coated, a must for all transmission rebuilds.
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Shift Fork, 1-2. Fits 4Spd Big Twin 1936-1986.
$44* Replaces OEM Shift Fork #34159-36* One piece cold forged forks. Fully heat treated and black oxide coated, a must for all transmission rebuilds.
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Shift Clutch, 3-4. Fits 4Spd Big Twin 1936-1986.
$126* Shift clutch (3-4 clutch) Replaces OEM 35440-38* Replacement clutches are specially heat treated and shot peened for super durability. * 3-4 clutches are face milled and have longer lead in ramps for more positive shifts.
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Shift Clutch, 1-2. Fits 4Spd Big Twin 1936-1986.
$113* Shift clutch (1-2 clutch) Replaces OEM 35665-36* Replacement clutches are specially heat treated and shot peened for super durability.
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3rd Gear Set. Fits 4Spd Big Twin Mid 1976-1986 with Caged Needle Bearings.
$599Close ratio 3rd gear set (1.35 ratio) (18Tx23T)* Transmissions built after mid 1976, to serial U-8959 (or higher) with caged needle bearings.* New design drive slots include lead in ramps for quicker, more positive shifting (same as stock 3rd and 4th gears).* With Andrews 4 speed gears, transmissions last longer, shift faster, and just plain…
Discover our extensive range of transmission internal parts for the BT 4 Speed era at Taverner Motorsports. We provide a comprehensive selection of high-quality components designed to fit a variety of classic motorcycles, ensuring you find the perfect match for your bike's transmission system.
Our inventory includes gears, shafts, bearings, and other essential internal components from top brands like Andrews Products and JIMS. Each part is meticulously selected to ensure it meets the highest standards of durability and performance, providing you with the confidence that your motorcycle's transmission will operate smoothly and reliably.
Whether you are undertaking a full transmission rebuild or simply need to replace a worn-out bearing, Taverner Motorsports has the right parts for you. Trust us to provide you with the best products and service, ensuring your classic motorcycle remains in peak condition and delivers a superior riding experience.
Engine Gasket Kit. Fits S&S Twin Cam(A) Engines with 4-1/8in. Bore.
Rocker Box / Cylinder Head Breathers. Fits Milwaukee-Eight 2017up. 
Cylinder Base Nuts - Chrome. Fits Big Twin 1930-1978. 
Wheel Spacer Crush Tube - 4.810in. Long x 3/4in. I.D. 
128 Tooth x 1-1/8in. Wide Final Drive Belt. Fits 883 Sportster 1991up with 61 Tooth Rear Pulley. 
7/8in. - 1in. P-Clamp - Chrome. 
1/8in. Thick x 1in. or 25mm Inside Diameter Axle Spacer - Chrome.
5/8in. Thick x 1in. or 25mm Inside Diameter Axle Spacer - Chrome. 
Smooth Head Bolt Covers - Chrome. Fits Big Twin 1985-2017 & Sportster 1986-2021. 
128 Tooth x 1-1/2in. Wide Final Drive Belt. Fits Softail 1993-1994 & Dyna 1991-1993 with 61 Tooth Rear Pulley.