2004.5-2005 GM 2500HD/3500HD 6.6L LLY Duramax Rear Gears

If you've upgraded to larger wheels and tires on your 2004.5-2005 GM 2500HD/3500HD and noticed a drop in power while driving or towing, aftermarket axle gears are the ideal solution. Restore your truck’s power and efficiency with our selection of OEM-style, precision-crafted rear gears. Whether you need a single gear or a complete set, these rear gears will help bring your truck's performance back to like-new condition. Find the perfect fit at Alligator Performance. Equip your gears with a quality Install Kits to ensure they run flawlessly.  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 YGGM14T-538T 10.5 Thick Ring & Pinion Gear (5.38 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD
Yukon YGGM14T-538T 10.5 Thick Ring & Pinion Gear (5.38 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD

Yukon Gear And Axle

Yukon YGGM14T-538T 10.5 Thick Ring & Pinion Gear (5.38 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD

SKU: YUKYGGM14T-538T
$452.89
Yukon YGGM14T-513T 10.5 Thick Ring & Pinion Gear (5.13 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD
Yukon YGGM14T-513T 10.5 Thick Ring & Pinion Gear (5.13 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD

Yukon Gear And Axle

Yukon YGGM14T-513T 10.5 Thick Ring & Pinion Gear (5.13 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD

SKU: YUKYGGM14T-513T
$436.89
Yukon YGGM14T-488T 10.5 Thick Ring & Pinion Gear (4.88 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD
Yukon YGGM14T-488T 10.5 Thick Ring & Pinion Gear (4.88 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD

Yukon Gear And Axle

Yukon YGGM14T-488T 10.5 Thick Ring & Pinion Gear (4.88 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD

SKU: YUKYGGM14T-488T
$436.89
Yukon YGGM14T-456T 10.5 Thick Ring & Pinion Gear (4.56 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD
Yukon YGGM14T-456T 10.5 Thick Ring & Pinion Gear (4.56 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD

Yukon Gear And Axle

Yukon YGGM14T-456T 10.5 Thick Ring & Pinion Gear (4.56 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD

SKU: YUKYGGM14T-456T
$436.89
Yukon YGGM14T-456 10.5 Ring & Pinion Gear (4.56 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD
Yukon YGGM14T-456 10.5 Ring & Pinion Gear (4.56 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD

Yukon Gear And Axle

Yukon YGGM14T-456 10.5 Ring & Pinion Gear (4.56 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD

SKU: YUKYGGM14T-456
$517.89
Yukon YGGM14T-373 10.5 Ring & Pinion Gear (3.73 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD
Yukon YGGM14T-373 10.5 Ring & Pinion Gear (3.73 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD

Yukon Gear And Axle

Yukon YGGM14T-373 10.5 Ring & Pinion Gear (3.73 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD

SKU: YUKYGGM14T-373
$436.89
Yukon YGGM14T-321 10.5 Ring & Pinion Gear (3.21 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD
Yukon YGGM14T-321 10.5 Ring & Pinion Gear (3.21 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD

Yukon Gear And Axle

Yukon YGGM14T-321 10.5 Ring & Pinion Gear (3.21 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD

SKU: YUKYGGM14T-321
$517.89
Yukon YGGM14T-342 10.5 Ring & Pinion Gear (3.42 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD
Yukon YGGM14T-342 10.5 Ring & Pinion Gear (3.42 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD

Yukon Gear And Axle

Yukon YGGM14T-342 10.5 Ring & Pinion Gear (3.42 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD

SKU: YUKYGGM14T-342
$517.89
Yukon YGGM11.5-430 11.5 Ring & Pinion Gear (4.30 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD
Yukon YGGM11.5-430 11.5 Ring & Pinion Gear (4.30 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD

Yukon Gear And Axle

Yukon YGGM11.5-430 11.5 Ring & Pinion Gear (4.30 Ratio) | 2001-2015 GM Silverado/Sierra 2500HD/3500HD

SKU: YUKYGGM11.5-430
$807.89
Yukon YGGM11.5-538 Ring & Pinion Gear Set for 11.5 Axle 5.38 Ratio | 2001-2015 GM Silverado/Sierra 2500HD/3500HD Duramax & 03-16 Dodge Ram 2500/3500
Yukon YGGM11.5-538 Ring & Pinion Gear Set for 11.5 Axle 5.38 Ratio | 2001-2015 GM Silverado/Sierra 2500HD/3500HD Duramax & 03-16 Dodge Ram 2500/3500

Yukon Gear And Axle

Yukon YGGM11.5-538 Ring & Pinion Gear Set for 11.5 Axle 5.38 Ratio | 2001-2015 GM Silverado/Sierra 2500HD/3500HD Duramax & 03-16 Dodge Ram 2500/3500

SKU: YUKYGGM11.5-538
$668.89
Yukon YGGM11.5-513 Ring & Pinion Gear Set for 11.5 Axle 5.13 Ratio | 2001-2015 GM Silverado/Sierra 2500HD/3500HD Duramax & 03-16 Dodge Ram 2500/3500
Yukon YGGM11.5-513 Ring & Pinion Gear Set for 11.5 Axle 5.13 Ratio | 2001-2015 GM Silverado/Sierra 2500HD/3500HD Duramax & 03-16 Dodge Ram 2500/3500

Yukon Gear And Axle

Yukon YGGM11.5-513 Ring & Pinion Gear Set for 11.5 Axle 5.13 Ratio | 2001-2015 GM Silverado/Sierra 2500HD/3500HD Duramax & 03-16 Dodge Ram 2500/3500

SKU: YUKYGGM11.5-513
$668.89
Yukon YGGM11.5-488 Ring & Pinion Gear Set for 11.5 Axle 4.88 Ratio | 2001-2015 GM Silverado/Sierra 2500HD/3500HD Duramax & 03-16 Dodge Ram 2500/3500
Yukon YGGM11.5-488 Ring & Pinion Gear Set for 11.5 Axle 4.88 Ratio | 2001-2015 GM Silverado/Sierra 2500HD/3500HD Duramax & 03-16 Dodge Ram 2500/3500

Yukon Gear And Axle

Yukon YGGM11.5-488 Ring & Pinion Gear Set for 11.5 Axle 4.88 Ratio | 2001-2015 GM Silverado/Sierra 2500HD/3500HD Duramax & 03-16 Dodge Ram 2500/3500

SKU: YUKYGGM11.5-488
$849.89

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

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