US Diesel Parts - ATS Heavy Duty Transmissions - GM Duramax LLY
ATS takes the potent Allison platform and bulletproofs it with the parts you need for towing, racing and reliability utilizing ATS’ formulated clutch material and CNC cut steels.
ATS Transmissions also carry an industry-leading 5 year / 500,000 mile warranty and reliability that protects your investment on the job, street or track.
Browse ATS Heavy Duty Transmissions - GM Duramax LLY Products
2004 - 2005 GM Duramax LLY 2WD
ATS Built Allison LCT1000 5-Speed
ATS 5 Star Viskus Clutch Drive Torque Converter
ATS Extra Deep Transmission Pan
Note: Must ship to an address w...
Description: 2004 - 2005 GM Duramax LLY 2WD
ATS Built Allison LCT1000 5-Speed
ATS 5 Star Viskus Clutch Drive Torque Converter
ATS Extra Deep Transmission Pan
Note: Must ship to an address...More Details »
2004 - 2005 GM Duramax LLY 4WD
ATS Built Allison LCT1000 5-Speed Auto Trans
ATS 5 Star Viskus Clutch Drive Torque Converter
ATS Extra Deep Transmission Pan
Note: Must ship to an ...
Description: 2004 - 2005 GM Duramax LLY 4WD
ATS Built Allison LCT1000 5-Speed Auto Trans
ATS 5 Star Viskus Clutch Drive Torque Converter
ATS Extra Deep Transmission Pan
Note: Must ship to an...More Details »
2004 - 2005 GM Duramax LLY 2WD
ATS Built Allison LCT1000 5-Speed Auto Trans
ATS 5 Star Viskus Clutch Drive Torque Converter
ATS Extra Deep Transmission Pan
ATS CoPilot Electronic Transm...
Description: 2004 - 2005 GM Duramax LLY 2WD
ATS Built Allison LCT1000 5-Speed Auto Trans
ATS 5 Star Viskus Clutch Drive Torque Converter
ATS Extra Deep Transmission Pan
ATS CoPilot Electronic...More Details »
2004 - 2005 GM Duramax LLY 4WD
ATS Built Allison LCT1000 5-Speed Auto Trans
ATS 5 Star Viskus Clutch Drive Torque Converter
ATS Extra Deep Transmission Pan
ATS CoPilot Electronic Transm...
Description: 2004 - 2005 GM Duramax LLY 4WD
ATS Built Allison LCT1000 5-Speed Auto Trans
ATS 5 Star Viskus Clutch Drive Torque Converter
ATS Extra Deep Transmission Pan
ATS CoPilot Electronic...More Details »
2004 - 2005 GM Duramax LLY 2WD
ATS Built Allison LCT1000 5-Speed Auto Trans
ATS 5 Star Viskus Clutch Drive Torque Converter
ATS Extra Deep Transmission Pan
ATS CoPilot Electronic Transm...
Description: 2004 - 2005 GM Duramax LLY 2WD
ATS Built Allison LCT1000 5-Speed Auto Trans
ATS 5 Star Viskus Clutch Drive Torque Converter
ATS Extra Deep Transmission Pan
ATS CoPilot Electronic...More Details »
2004 - 2005 GM Duramax LLY 4WD
ATS Built Allison LCT1000 5-Speed Auto Trans
ATS 5 Star Viskus Clutch Drive Torque Converter
ATS Extra Deep Transmission Pan
ATS CoPilot Electronic Transm...
Description: 2004 - 2005 GM Duramax LLY 4WD
ATS Built Allison LCT1000 5-Speed Auto Trans
ATS 5 Star Viskus Clutch Drive Torque Converter
ATS Extra Deep Transmission Pan
ATS CoPilot Electronic...More Details »
2004 - 2005 GM Duramax LLY 2WD
ATS Built Extreme Duty Allison LCT1000 5-Speed Auto Trans (Ability to hold 1000+ HP)
ATS 5 Star Viskus Clutch Drive Torque Converter
ATS Extra Deep Transmis...
Description: 2004 - 2005 GM Duramax LLY 2WD
ATS Built Extreme Duty Allison LCT1000 5-Speed Auto Trans (Ability to hold 1000+ HP)
ATS 5 Star Viskus Clutch Drive Torque Converter
ATS Extra Deep...More Details »
2004 - 2005 GM Duramax LLY 4WD
ATS Built Extreme Duty Allison LCT1000 5-Speed Auto Trans (Ability to hold 1000+ HP)
ATS 5 Star Viskus Clutch Drive Torque Converter
ATS Extra Deep Transmis...
Description: 2004 - 2005 GM Duramax LLY 4WD
ATS Built Extreme Duty Allison LCT1000 5-Speed Auto Trans (Ability to hold 1000+ HP)
ATS 5 Star Viskus Clutch Drive Torque Converter
ATS Extra Deep...More Details »
2004 - 2005 GM Duramax LLY 2WD
ATS Built Extreme Duty Allison LCT1000 5-Speed Auto Trans
ATS 5 Star Viskus Clutch Drive Torque Converter
ATS Extra Deep Transmission Pan
ATS CoPilot Elec...
Description: 2004 - 2005 GM Duramax LLY 2WD
ATS Built Extreme Duty Allison LCT1000 5-Speed Auto Trans
ATS 5 Star Viskus Clutch Drive Torque Converter
ATS Extra Deep Transmission Pan
ATS CoPilot...More Details »
2004 - 2005 GM Duramax LLY 4WD
ATS Built Extreme Duty Allison LCT1000 5-Speed Auto Trans
ATS 5 Star Viskus Clutch Drive Torque Converter
ATS Extra Deep Transmission Pan
ATS CoPilot Elec...
Description: 2004 - 2005 GM Duramax LLY 4WD
ATS Built Extreme Duty Allison LCT1000 5-Speed Auto Trans
ATS 5 Star Viskus Clutch Drive Torque Converter
ATS Extra Deep Transmission Pan
ATS CoPilot...More Details »
2004 - 2005 GM Duramax LLY 4WD Only
ATS Built Extreme Duty Allison LCT1000 5-Speed Auto Trans
ATS 5 Star Viskus Clutch Drive Torque Converter
ATS Extra Deep Transmission Pan
ATS CoPilot...
Description: 2004 - 2005 GM Duramax LLY 4WD Only
ATS Built Extreme Duty Allison LCT1000 5-Speed Auto Trans
ATS 5 Star Viskus Clutch Drive Torque Converter
ATS Extra Deep Transmission Pan
ATS CoPilot...More Details »
Description:
Late 2004 - 2005 GM LCT-1000 5-Speed
Built to handle street/strip, sled-pulling, 1000rwhp + AND can still be daily driven.
This item requires a...More Details »
Description:
Late 2004 - 2005 GM LCT-1000 5-Speed
Increased towing capability - power holding up to 800hp - mild street/strip and sled-pulling use.
This item...More Details »
Description:
Late 2004 - 2005 GM LCT-1000 5-Speed
Built to handle street/strip, sled-pulling, up to 1000rwhp AND can still be daily driven.
This item...More Details »