2004.5-2005 GM 2500HD/3500HD 6.6L LLY Duramax Gear Packages

We carry an entire selection of complete gear packages for the GM Sierra/Silverado 2500HD/3500HD that come with front and rear ring-and-pinion gears, install kits, and even differentials so you truck gets everything it needs to win back the performance it lost by adding larger tires. Give your custom GM build better acceleration and torque delivery to all four tires with any of these premium total gear packages from your friends here at Alligator Performance!  GM Duramax Fitments: 2004, 2005 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.

GM Duramax>2004.5-2005 6.6L LLY
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Yukon YPKGM11.5-S-30 Standard Open Spider Gear Kit for 11.5 30 Spline Axles | 2001-2015 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax & 11-16 Dodge Ram 2500/3500
Yukon YPKGM11.5-S-30 Standard Open Spider Gear Kit for 11.5 30 Spline Axles | 2001-2015 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax & 11-16 Dodge Ram 2500/3500

Yukon Gear And Axle

Yukon YPKGM11.5-S-30 Standard Open Spider Gear Kit for 11.5 30 Spline Axles | 2001-2015 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax & 11-16 Dodge Ram 2500/3500

$213.89
Yukon YGK041 5.38 Thick Ratio Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD
Yukon YGK041 5.38 Thick Ratio Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD

Yukon Gear And Axle

Yukon YGK041 5.38 Thick Ratio Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD

$1,399.89
Yukon YGK053 5.38 Thick Ratio Reverse Rotation Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD
Yukon YGK053 5.38 Thick Ratio Reverse Rotation Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD

Yukon Gear And Axle

Yukon YGK053 5.38 Thick Ratio Reverse Rotation Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD

$1,399.89
Yukon YGK040 5.38 Ratio Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD
Yukon YGK040 5.38 Ratio Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD

Yukon Gear And Axle

Yukon YGK040 5.38 Ratio Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD

$1,333.89
Yukon YGK052 5.13 Thick Ratio Reverse Rotation Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD
Yukon YGK052 5.13 Thick Ratio Reverse Rotation Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD

Yukon Gear And Axle

Yukon YGK052 5.13 Thick Ratio Reverse Rotation Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD

$1,363.89
Yukon YGK034 4.56 Ratio Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD
Yukon YGK034 4.56 Ratio Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD

Yukon Gear And Axle

Yukon YGK034 4.56 Ratio Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD

$1,363.89
Yukon YGK039 5.13 Thick Ratio Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD
Yukon YGK039 5.13 Thick Ratio Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD

Yukon Gear And Axle

Yukon YGK039 5.13 Thick Ratio Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD

$1,333.89
Yukon YGK038 5.13 Ratio Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD
Yukon YGK038 5.13 Ratio Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD

Yukon Gear And Axle

Yukon YGK038 5.13 Ratio Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD

$1,363.89
Yukon YGK051 4.88 Thick Ratio Reverse Rotation Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD
Yukon YGK051 4.88 Thick Ratio Reverse Rotation Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD

Yukon Gear And Axle

Yukon YGK051 4.88 Thick Ratio Reverse Rotation Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD

$1,363.89
Yukon YGK037 4.88 Thick Ratio Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD
Yukon YGK037 4.88 Thick Ratio Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD

Yukon Gear And Axle

Yukon YGK037 4.88 Thick Ratio Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD

$1,363.89
Yukon YGK035 4.56 Thick Ratio Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD
Yukon YGK035 4.56 Thick Ratio Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD

Yukon Gear And Axle

Yukon YGK035 4.56 Thick Ratio Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD

$1,399.89
Yukon YGK036 4.88 Ratio Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD
Yukon YGK036 4.88 Ratio Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD

Yukon Gear And Axle

Yukon YGK036 4.88 Ratio Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks | 1999-2013 GM Silverado/Sierra 2500HD/3500HD

$1,363.89

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2004.5-2005 6.6L Silverado & Sierra 2500HD/3500HD

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