LLY Duramax Transmissions

The XDP X-TRA Cool Direct-Fit Transmission Oil Cooler XD309 is a direct upgrade for the factory transmission oil cooler in your 2001-2005 GM 6.6L D...

The XDP Tow Series Flex Plate XD644 is an outstanding upgrade for your workhorse diesel truck. If your truck is used for constant heavy-duty towing...

The New 24 Pin ATS Co-Pilot for 2001-05 GM, 5 speed Allison 1000 and 6.6L Duramax, Controls Transmission Pressure and TCC lock up based on Boost Pr...

2004.5 to 2005 GM Allison 5 speed Kit (Stage 6). Includes: TripleLok Torque Converter (Patented Square tab) Exchange the TripleLok Torque Converte...

Serving truck enthusiasts for nearly two decades, ATS invents, designs, manufactures, and sells the world's most innovative diesel truck performanc...

ATS Extra Deep Transmission Pan - Allison LCT1000/2000 AutomaticDeep Pan Features Include: Deep filter and gasket necessary for the install Holds ...

Serving truck enthusiasts for nearly two decades, ATS invents, designs, manufactures, and sells the world's most innovative diesel truck performanc...

2004.5 to 2005 GM Allison 5 speed Kit (Stage 7).Includes: TripleLok Torque Converter (Patented Square tab) Exchange the TripleLok? Torque Converte...

2001 to Early 2004 GM Allison 5 speed Kit (Stage 7).Includes: TripleLok Torque Converter (Patented Square tab) Pump Kit Manufactured C1, C2, C3, C...

2001 to Early 2004 GM Allison 5 speed Kit (Stage 6).Includes: TripleLok Torque Converter (Patented Square tab) Exchange the TripleLok Torque Conve...

Standard in all transmission packages, and available individually, is the ATS Five Star Torque Converter. This torque converter is built to handle ...

This billet steel input shaft is made to fix a weak link in your GM Duramax truck with Allison transmission.Details: Input Shaft - Billet Steel Fi...

The TripleLok Torque Converter for 2001 to 2010 Allison is the only Diesel torque converter on the market that has been awarded two patents from th...

2001-2010 Allison C5 clutch packApplication: 2001-2010 2500/3500 Duramax GM Light Duty Diesel

SFI approved billet flexplates from ATS will hold up under the most extreme conditions. ATS billet flexplates are SFI approved, meaning that they s...

ATS Stage 4 Allison LCT1000 Transmission Package, 4WD, 2006-2007 6.6L LLY / LBZ / LMM Duramax. Includes: ATS 4WD 2006-2007 Allison LCT1000 Perfor...

ATS Stage 3 Allison LCT1000 Transmission Package, 4WD, 2006-2007 6.6L LLY / LBZ / LMM Duramax. Includes: ATS 4WD 2006-2007 Allison LCT1000 Perfor...

ATS Stage 1 Allison LCT1000 Transmission Package, 4WD, w/ PTO, 2006-2007 6.6L LLY / LBZ / LMM Duramax. Includes: ATS 4WD w/ PTO 2006-2007 Allison...

Serving truck enthusiasts for nearly two decades, ATS invents, designs, manufactures, and sells the world's most innovative diesel truck performanc...

ATS Built NV5600 6-Speed Manual Trans, 2000-Early 2005 Dodge 2WDDetails: ATS NV5600 Transmission 6-Speed Manual Cast Iron Case 2 Wheel Drive Only ...

Upgrade your truck with a XDP Billet Tow & Race Series Flex Plate XD651. If your truck is used for racing, sled pulling, or hot shot towing, it...

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 newe...

Whether on the road, on the trail, or towing, superior cooling is vital for reliable transmission shifting. Yukon’s high-capacity transmission pa...