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Collection:

2001-2004 GM 2500/3500 Transmission

60 products
Regular price $13,933.00
Sale price $13,933.00
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Randy's Transmissions 2001-2019 GM Allison 1000 Stage 4 Transmission 900HP+ CLICK HERE to view the Randy's Transmissions Payment Policy Terms & Conditions.   Allison 1000 Stage 4 900+ Hp m...
Regular price $138.00
Sale price $138.00
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Dress up your Allison Transmission with our Billet PTO Cover Kit. Complete kit includes covers, gaskets, and button head bolts to give your transmission a clean look. 
Regular price $557.00
Sale price $557.00
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The Fleece Performance TapShifter allows you to shift your 2003-2005 GM Allison Transmission with the touch of a button just like the 2006 and newer trucks. Perfect for towing, drag racing, daily d...
Regular price $250.00
Sale price $250.00
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Fleece Performance 01-15 GM Duramax 6.6L AlliLocker - Allison Torque Converter Controller.
Regular price $557.00
Sale price $557.00
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The Fleece Performance TapShifter allows you to shift your 2001-2005 GM Allison Transmission with the touch of a button just like the 2006 and newer trucks. Perfect for towing, drag racing, daily d...
Regular price $44.00
Sale price $44.00
Regular price
Unit price
per 
Fleece Performance (2) Setrab to -10AN Fittings Purchased w/ Allison Transmission Cooler Lines