LLY Duramax Transmissions

An XDP Tow Series flex plate for 2001 to 2016 Duramax trucks with the Allison 1000, built for constant heavy towing. Part number: XD644 Questions ...

XDP Model XD309The XDP X-TRA Cool Direct-Fit Transmission Oil Cooler XD309 is a direct upgrade for the factory transmission oil cooler in your 2001...

XDP Billet Tow and Race Flex Plate for the 2001 to 2016 Duramax with Allison 1000. Sold and shipped by Powerhouse Diesel, a diesel repair and perfo...

Add fingertip control to your 2001-2005 Duramax Allison 1000 transmission for easy Tap Shifting when passing, pulling, hill climbing or whenever yo...

BDs FleX-Plate is designed specifically for modified applications, and can reliably handle up to 1,500 lb.-ft. of torque. Twice as thick as the sto...

This bracket provides additional clearance around the CV head on Cognito drivelines by relocating the shift linkage. Made in the USA.Notes:Required...

Upgrade your truck’s performance and durability with the Firepunk 2001-2010 Allison Transmission Tubular Crossmember. Designed with strength, weigh...

2001-2005 Sierra/Silverado 2500HD/3500HD Allison Firepunk F2 Transmission Package Features: Great For Mildly Modified Trucks Up To 900HP 2-Year Un...

This billet C2 hub addresses early failures of the Allison transmission C-2 clutch hub in high torque and high horsepower applications. Features: ...

2001-2005 Sierra/Silverado 2500HD/3500HD Allison Firepunk F1 Transmission Package Features: Great For Mildly Modified Trucks Up To 750HP 2-Year Un...

2001-2005 Firepunk Proven A1000 Allison Transmission Features: Great For Highly Modified Trucks Up To 1000HP 2-Year Unlimited Mileage, 100% Workma...

Our 01-05 Allison master rebuild kit includes all the parts you need to rebuild your owntransmission. These are the main components we use in all o...

Fits: 9 vehicle models, including 2001 to 2005 Chevrolet Silverado 2500 HD; 2001 to 2005 Chevrolet Silverado 3500; 2001 to 2005 GMC Sierra 2500 HD....

Fits: 10 vehicle models, including 2001 to 2004, 2007 to 2010 Chevrolet Silverado 2500 HD; 2001 to 2004, 2007 to 2010 GMC Sierra 2500 HD; 2006 to 2...

Fits: 8 vehicle models, including 2001 to 2004 Chevrolet Silverado 2500 HD; 2001 to 2004 Chevrolet Silverado 3500; 2001 to 2004 GMC Sierra 2500 HD....

Fits: 5 vehicle models, including 2001 to 2005 Chevrolet Silverado 2500 HD; 2001 to 2005 Chevrolet Silverado 3500; 2001 to 2005 GMC Sierra 2500 HD....

Fits: 11 vehicle models, including 2001 to 2005, 2007 to 2010 Chevrolet Silverado 2500 HD; 2001 to 2005, 2007 to 2010 GMC Sierra 2500 HD; 2006 to 2...

Fits: 10 vehicle models, including 2001 to 2004, 2007 to 2010 Chevrolet Silverado 2500 HD; 2001 to 2004, 2007 to 2010 GMC Sierra 2500 HD; 2006 to 2...

Fits: 10 vehicle models, including 2001 to 2004, 2007 to 2010 Chevrolet Silverado 2500 HD; 2001 to 2004, 2007 to 2010 GMC Sierra 2500 HD; 2006 to 2...

Fits: 2001 to 2004 Chevrolet Silverado 2500 HD; 2001 to 2004 Chevrolet Silverado 3500; 2001 to 2004 GMC Sierra 2500 HD; 2001 to 2004 GMC Sierra 350...