Collection:
Transmission - BT 4 spd era
20 productsShop the range of aftermarket motorcycle transmission & final drive products at Pro Class Custom Parts.
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Front Suspension: 35 & 39mm
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Front Suspension: 41mm
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Front Suspension: 49mm
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XL'79-03
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Transmission - BT 4 spd era
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Transmission - BT 5 spd era
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Transmission - BT 6 spd era
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Transmission - XL 4 spd era
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Transmission - XL 5 spd era
Windshields & Luggage
Countershaft Gear. Fits 4Spd Big Twin 1936-1976.
Regular price
$458.99
Sale price
$458.99
Regular price
Unit price
/per
* 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.
MFR PART...
Kickstart Shaft. Fits 4Spd Big Twin 1936-1986.
Regular price
$299.99
Sale price
$299.99
Regular price
Unit price
/per
* High-quality steel replacement shaft
* Machined for an exact fit
* Made in the U.S.A.
* Replaces OEM # 33096-54
MFR PART No: 33096-54B
ROLLIES PART No: JM-33096-54B
Transmission Gear Kit. Fits 4Spd Big Twin 1936-1976
Regular price
$2,416.99
Sale price
$2,416.99
Regular price
Unit price
/per
Gear Kit
* Includes all 6 gears, 2 shift clutches and 2 forks.
* Shafts and small parts kits must be ordered separately.(early c/s required… uses stock loose rollers oem#9084 = rollers need to b...
Transmission Gear Kit. Fits 4Spd Big Twin 1977-1986
Regular price
$2,489.99
Sale price
$2,489.99
Regular price
Unit price
/per
Gear Kit
* Includes all 6 gears, 2 shift clutches and 2 forks.
* Shafts and small parts kits must be ordered separately.
* Andrews 4 speed gears, transmissions last longer, shift faster, and jus...
Transmission Main Bearing Race. Fits Big Twin 1937-1977.
Regular price
$279.99
Sale price
$279.99
Regular price
Unit price
/per
* Standard O.D. is 2.314″, I.D. is 1.8802″.
* It will depend on the amount of press fit and will determine the amount of line lapping required to fit new bearing and mainshaft.
* Replaces OEM # 3...
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