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Collection:

2001-2004 GM 2500/3500 Transmission

64 products
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Regular price $20.00
Sale price $20.00
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For those that have upgraded their manual transmission with a Fast Cooler for added thermal protection and increased rigidity, and added the corresponding filter kit, this is a replacement fil...
Regular price $899.00
Sale price $899.00
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ALLISON 1000 High Performance, Rebuilt, Updated Valve Body Specially Calibrated For Use With Our Level 2, 3, 4 and 5 Torque Converters (can be used with other manufactures torque converters as w...
Regular price $429.00
Sale price $429.00
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When you are looking for the best rebuild kit for your DIY or local shop build then the only choice is RevMax.  We are proud to offer the best rebuilding kits for your diesel transmission that mone...
Regular price $1,999.00
Sale price $1,999.00
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Enhance multiple aspects of your ride with the Duramaxtuner 6 Speed conversion kit! Take your 2001-2005 Allison to another level by adding a sixth gear! Custom TCM tuning for your specific truck D...
Regular price $289.99
Sale price $289.99
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Fix your leaking transmission lines with these heavy duty, high flow, flexible transmission lines. This kit comes complete with everything needed to get the job done right the first time. Transmiss...
Regular price $139.99
Sale price $139.99
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Get rid of oil leaks from the harness connector with our replacement internal wiring harness seal for the Allison LCT and GM 4T65-E. This 20-way pin seal is a direct replacement for the hard to fin...