Collection:
2001-2004 GM 2500/3500 Transmission
64 products
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Fast Coolers | Transmission Cooler Replacement Filter
Regular price
$20.00
Sale price
$20.00
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/per
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...
RevMax | 2001-2004 GM Allison 1000 Updated & Rebuilt High Performance Valve Body
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...
RevMax | 2001-2016 GM Allison 1000 Transmission Seals / Gaskets Rebuild Kit
Regular price
$429.00
Sale price
$429.00
Regular price
Unit price
/per
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...
Calibrated Power | 2001-2005 GM LB7 / LLY Allison 6 Speed Conversion Kit
Regular price
$1,999.00
Sale price
$1,999.00
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/per
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...
Fleece | 2001-2005 GM Duramax 6.6L LB7 / LLY Allison Transmission Cooler Lines
Regular price
$289.99
Sale price
$289.99
Regular price
Unit price
/per
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...
Fleece | 2001-2019 GM 2500 / 3500 Allison LCT / GM 4T65-E Internal Harness Connector & Seal - 7 Pack
Regular price
$139.99
Sale price
$139.99
Regular price
Unit price
/per
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...
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