2001-2004 GM 2500HD/3500HD 6.6L LB7 Duramax Rear Gears

Adding larger tires to your GM 2500HD/3500HD causes both a loss in both power delivery and acceleration. Gain back your performance and acceleration by adding more aggressive rear-end ring-and-pinion gears to your rig. Shorter gears can also give your GM 2500/3500 back the final drive ratio lost from adding larger tires, delivering the performance needed for every application. Pair your new gear setup with a set of Wheels & Tires! GM Duramax Fitments: 2001, 2002, 2003, 2004 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>2001-2004 6.6L LB7
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Yukon YGGM11.5-342 Ring & Pinion Gear Set for 11.5 Axle 3.42 Ratio | 2001-2015 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax & 03-16 Dodge RAM 2500/3500
Yukon YGGM11.5-342 Ring & Pinion Gear Set for 11.5 Axle 3.42 Ratio | 2001-2015 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax & 03-16 Dodge RAM 2500/3500

Yukon Gear And Axle

Yukon YGGM11.5-342 Ring & Pinion Gear Set for 11.5 Axle 3.42 Ratio | 2001-2015 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax & 03-16 Dodge RAM 2500/3500

SKU: YUKYGGM11.5-342
$933.89
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
$887.89
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
$569.89
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
$480.89
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
$497.89
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
$480.89
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
$480.89
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
$569.89
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
$480.89
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
$569.89
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
$734.89
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
$734.89

2001-2004 6.6L Silverado & Sierra 2500HD/3500HD

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