2001-2004 GM 2500HD/3500HD 6.6L LB Duramax Driveline

2001-2004 GM 2500HD/3500HD 6.6L LB7 Duramax Differential Covers

Differential Covers

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

Differentials

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

Front Gears

2001-2004 GM 2500HD/3500HD 6.6L LB7 Duramax Gear Packages

Gear Packages

2001-2004 GM 2500HD/3500HD 6.6L LB7 Duramax Install Kits

Install Kits

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

Rear Gears

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Mag Hytec AA14-11.5 Differential Cover | 2003-2018 Dodge RAM & 2001-2019 GM Silverado/Sierra
Mag Hytec AA14-11.5 Differential Cover | 2003-2018 Dodge RAM & 2001-2019 GM Silverado/Sierra
Mag Hytec AA14-11.5 Differential Cover | 2003-2018 Dodge RAM & 2001-2019 GM Silverado/Sierra

Mag-Hytec

Mag Hytec AA14-11.5 Differential Cover | 2003-2018 Dodge RAM & 2001-2019 GM Silverado/Sierra

SKU: MAGAA14-11.5
$334.40
PPE 138051000 HD Cast Aluminum Rear Differential Cover with Raw Finish | 2001-2019 GM Silverado/Sierra 2500HD/3500HD
PPE 138051000 HD Cast Aluminum Rear Differential Cover with Raw Finish | 2001-2019 GM Silverado/Sierra 2500HD/3500HD
PPE 138051000 HD Cast Aluminum Rear Differential Cover with Raw Finish | 2001-2019 GM Silverado/Sierra 2500HD/3500HD
PPE 138051000 HD Cast Aluminum Rear Differential Cover with Raw Finish | 2001-2019 GM Silverado/Sierra 2500HD/3500HD
PPE 138051000 HD Cast Aluminum Rear Differential Cover with Raw Finish | 2001-2019 GM Silverado/Sierra 2500HD/3500HD

PPE

PPE 138051000 HD Cast Aluminum Rear Differential Cover with Raw Finish | 2001-2019 GM Silverado/Sierra 2500HD/3500HD

SKU: PPE138051000
$287.99
PPE 138051010 Rear Differential Cover with Brushed Finish | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
PPE 138051010 Rear Differential Cover with Brushed Finish | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
PPE 138051010 Rear Differential Cover with Brushed Finish | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

PPE

PPE 138051010 Rear Differential Cover with Brushed Finish | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: PPE138051010
$305.99
Eaton 915A568 11.5" Detroit TrueTrac Differential | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Eaton 915A568 11.5" Detroit TrueTrac Differential | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Eaton

Eaton 915A568 11.5" Detroit TrueTrac Differential | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: EAT915A568
$1,299.99
Cogntio 110-90190 Differential Mount Bracket Kit | 2001-2010 GM Silverado/Sierra 2500HD/3500HD
Cogntio 110-90190 Differential Mount Bracket Kit | 2001-2010 GM Silverado/Sierra 2500HD/3500HD

Cognito

Cogntio 110-90190 Differential Mount Bracket Kit | 2001-2010 GM Silverado/Sierra 2500HD/3500HD

SKU: COG110-90190
$199.95
ATS 402-915-6248 11.5" inch 14-Bolt Differential Cover | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
ATS 402-915-6248 11.5" inch 14-Bolt Differential Cover | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
ATS 402-915-6248 11.5" inch 14-Bolt Differential Cover | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
ATS 402-915-6248 11.5" inch 14-Bolt Differential Cover | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

ATS Diesel Performance

ATS 402-915-6248 11.5" inch 14-Bolt Differential Cover | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: ATS402-915-6248
$289.99
Mag-Hytec GM14-9.5 14-Bolt High Capacity Differential Cover for 9.5 Axles | 1980-2020 GM Silverado/Sierra 2500HD/3500HD
Mag-Hytec GM14-9.5 14-Bolt High Capacity Differential Cover for 9.5 Axles | 1980-2020 GM Silverado/Sierra 2500HD/3500HD
Mag-Hytec GM14-9.5 14-Bolt High Capacity Differential Cover for 9.5 Axles | 1980-2020 GM Silverado/Sierra 2500HD/3500HD

Mag-Hytec

Mag-Hytec GM14-9.5 14-Bolt High Capacity Differential Cover for 9.5 Axles | 1980-2020 GM Silverado/Sierra 2500HD/3500HD

SKU: MAGGM14-9.5
$313.50
PPE 138051002 Rear Differential Cover Gasket | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax Durama & 01-10 Dodge RAM 5.9L/6.7L Cummins
PPE 138051002 Rear Differential Cover Gasket | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax Durama & 01-10 Dodge RAM 5.9L/6.7L Cummins
PPE 138051002 Rear Differential Cover Gasket | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax Durama & 01-10 Dodge RAM 5.9L/6.7L Cummins

PPE

PPE 138051002 Rear Differential Cover Gasket | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax Durama & 01-10 Dodge RAM 5.9L/6.7L Cummins

SKU: PPE138051002
$17.99
Yukon YAWGM14T-30-42 Gear Chromoly Axle Shaft for 14T & 11.5" Differentials 30 Spline Cut to Length 42.2 | 1989-2010 GM Silverado/Sierra 2500HD/3500HD
Yukon YAWGM14T-30-42 Gear Chromoly Axle Shaft for 14T & 11.5" Differentials 30 Spline Cut to Length 42.2 | 1989-2010 GM Silverado/Sierra 2500HD/3500HD
Yukon YAWGM14T-30-42 Gear Chromoly Axle Shaft for 14T & 11.5" Differentials 30 Spline Cut to Length 42.2 | 1989-2010 GM Silverado/Sierra 2500HD/3500HD
Yukon YAWGM14T-30-42 Gear Chromoly Axle Shaft for 14T & 11.5" Differentials 30 Spline Cut to Length 42.2 | 1989-2010 GM Silverado/Sierra 2500HD/3500HD
Yukon YAWGM14T-30-42 Gear Chromoly Axle Shaft for 14T & 11.5" Differentials 30 Spline Cut to Length 42.2 | 1989-2010 GM Silverado/Sierra 2500HD/3500HD

Yukon Gear And Axle

Yukon YAWGM14T-30-42 Gear Chromoly Axle Shaft for 14T & 11.5" Differentials 30 Spline Cut to Length 42.2 | 1989-2010 GM Silverado/Sierra 2500HD/3500HD

SKU: YUKYAWGM14T-30-42
$452.89
PPE 238051020 Rear Differential Cover Black | 2001-2019 GM 2500HD/3500HD & 2001-2005 Dodge RAM 2500/3500
PPE 238051020 Rear Differential Cover Black | 2001-2019 GM 2500HD/3500HD & 2001-2005 Dodge RAM 2500/3500
PPE 238051020 Rear Differential Cover Black | 2001-2019 GM 2500HD/3500HD & 2001-2005 Dodge RAM 2500/3500
PPE 238051020 Rear Differential Cover Black | 2001-2019 GM 2500HD/3500HD & 2001-2005 Dodge RAM 2500/3500

PPE

PPE 238051020 Rear Differential Cover Black | 2001-2019 GM 2500HD/3500HD & 2001-2005 Dodge RAM 2500/3500

SKU: PPE238051020
$305.99
PPE 238051010 Rear Differential Cover Brushed | 2001-2019 GM 2500/3500 & 2001-2005 Dodge RAM 2500/3500
PPE 238051010 Rear Differential Cover Brushed | 2001-2019 GM 2500/3500 & 2001-2005 Dodge RAM 2500/3500
PPE 238051010 Rear Differential Cover Brushed | 2001-2019 GM 2500/3500 & 2001-2005 Dodge RAM 2500/3500
PPE 238051010 Rear Differential Cover Brushed | 2001-2019 GM 2500/3500 & 2001-2005 Dodge RAM 2500/3500

PPE

PPE 238051010 Rear Differential Cover Brushed | 2001-2019 GM 2500/3500 & 2001-2005 Dodge RAM 2500/3500

SKU: PPE238051010
$305.99
PPE 138051005 Drain Plug - Stainless Steel 1/2" inch ORB -6AN 9/16in-18 with Magnet | Universal
PPE 138051005 Drain Plug - Stainless Steel 1/2" inch ORB -6AN 9/16in-18 with Magnet | Universal
PPE 138051005 Drain Plug - Stainless Steel 1/2" inch ORB -6AN 9/16in-18 with Magnet | Universal
PPE 138051005 Drain Plug - Stainless Steel 1/2" inch ORB -6AN 9/16in-18 with Magnet | Universal

PPE

PPE 138051005 Drain Plug - Stainless Steel 1/2" inch ORB -6AN 9/16in-18 with Magnet | Universal

SKU: PPE138051005
$17.99
$19.99
ARB RD139 Air locker For AAM 11.5 Rear Axle | 2000-2006 GM 2500/3500 / 03-09 Dodge RAM 2500/3500
ARB RD139 Air locker For AAM 11.5 Rear Axle | 2000-2006 GM 2500/3500 / 03-09 Dodge RAM 2500/3500

ARB 4x4 Accessories

ARB RD139 Air locker For AAM 11.5 Rear Axle | 2000-2006 GM 2500/3500 / 03-09 Dodge RAM 2500/3500

SKU: ARBRD139
$1,299.95
Wehrli 100113 Rear AAM 11.5 Differential Cover | 2001-2019 GM 6.6L Duramax 2500HD/3500HD & 2003-2019 Dodge Ram 5.9L/6.7L Cummins
Wehrli 100113 Rear AAM 11.5 Differential Cover | 2001-2019 GM 6.6L Duramax 2500HD/3500HD & 2003-2019 Dodge Ram 5.9L/6.7L Cummins
Wehrli 100113 Rear AAM 11.5 Differential Cover | 2001-2019 GM 6.6L Duramax 2500HD/3500HD & 2003-2019 Dodge Ram 5.9L/6.7L Cummins

Wehrli Custom Fab

Wehrli 100113 Rear AAM 11.5 Differential Cover | 2001-2019 GM 6.6L Duramax 2500HD/3500HD & 2003-2019 Dodge Ram 5.9L/6.7L Cummins

SKU: WCF100113-GB
From $343.38
PPE 138041020 9.25IFS Front Differential Cover | 2011-2019 GM Silverado/Sierra 2500HD/3500HD
PPE 138041020 9.25IFS Front Differential Cover | 2011-2019 GM Silverado/Sierra 2500HD/3500HD
PPE 138041020 9.25IFS Front Differential Cover | 2011-2019 GM Silverado/Sierra 2500HD/3500HD

PPE

PPE 138041020 9.25IFS Front Differential Cover | 2011-2019 GM Silverado/Sierra 2500HD/3500HD

SKU: PPE138041020
$233.99
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 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 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

SKU: YUKYPKGM11.5-S-30
$235.89
Axiom Supply AXCV10 Reaper Series CV Axle Assembly | 2001-2010 GM Silverado/Sierra 2500HD/3500HD
Axiom Supply AXCV10 Reaper Series CV Axle Assembly | 2001-2010 GM Silverado/Sierra 2500HD/3500HD
Axiom Supply AXCV10 Reaper Series CV Axle Assembly | 2001-2010 GM Silverado/Sierra 2500HD/3500HD
Axiom Supply AXCV10 Reaper Series CV Axle Assembly | 2001-2010 GM Silverado/Sierra 2500HD/3500HD
Axiom Supply AXCV10 Reaper Series CV Axle Assembly | 2001-2010 GM Silverado/Sierra 2500HD/3500HD
Axiom Supply AXCV10 Reaper Series CV Axle Assembly | 2001-2010 GM Silverado/Sierra 2500HD/3500HD

Axiom Supply

Axiom Supply AXCV10 Reaper Series CV Axle Assembly | 2001-2010 GM Silverado/Sierra 2500HD/3500HD

SKU: AXIAXCV10
$369.99
PPE 238051000 Rear Differential Cover Raw | 2001-2005 Ram 2500/3500 & 01-19 GM 2500HD/3500HD
PPE 238051000 Rear Differential Cover Raw | 2001-2005 Ram 2500/3500 & 01-19 GM 2500HD/3500HD
PPE 238051000 Rear Differential Cover Raw | 2001-2005 Ram 2500/3500 & 01-19 GM 2500HD/3500HD

PPE

PPE 238051000 Rear Differential Cover Raw | 2001-2005 Ram 2500/3500 & 01-19 GM 2500HD/3500HD

SKU: PPE238051000
$287.99
PPE 138051020 Rear Differential Cover with Black Finish | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
PPE 138051020 Rear Differential Cover with Black Finish | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

PPE

PPE 138051020 Rear Differential Cover with Black Finish | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: PPE138051020
$305.99
Mag Hytec MAGA1000-MAGAA14-11.5 Rear Differential Cover & Transmission Pan | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Mag Hytec MAGA1000-MAGAA14-11.5 Rear Differential Cover & Transmission Pan | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Mag Hytec MAGA1000-MAGAA14-11.5 Rear Differential Cover & Transmission Pan | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Mag Hytec MAGA1000-MAGAA14-11.5 Rear Differential Cover & Transmission Pan | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Mag-Hytec

Mag Hytec MAGA1000-MAGAA14-11.5 Rear Differential Cover & Transmission Pan | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: MAGMAGA1000-MAGAA14-11.5
$599
Mag Hytec 14-10.5 Differential Cover | 1973-2017 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Mag Hytec 14-10.5 Differential Cover | 1973-2017 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Mag-Hytec

Mag Hytec 14-10.5 Differential Cover | 1973-2017 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: MAG14-10.5
$313.50
BD Diesel 1061825 Rear AA14-11.5 Differential Cover | 2003-2018 Ram 5.9L/6.7L Cummins & 01-18 GM 6.6L Duramax
BD Diesel 1061825 Rear AA14-11.5 Differential Cover | 2003-2018 Ram 5.9L/6.7L Cummins & 01-18 GM 6.6L Duramax
BD Diesel 1061825 Rear AA14-11.5 Differential Cover | 2003-2018 Ram 5.9L/6.7L Cummins & 01-18 GM 6.6L Duramax
BD Diesel 1061825 Rear AA14-11.5 Differential Cover | 2003-2018 Ram 5.9L/6.7L Cummins & 01-18 GM 6.6L Duramax
BD Diesel 1061825 Rear AA14-11.5 Differential Cover | 2003-2018 Ram 5.9L/6.7L Cummins & 01-18 GM 6.6L Duramax

BD Diesel

BD Diesel 1061825 Rear AA14-11.5 Differential Cover | 2003-2018 Ram 5.9L/6.7L Cummins & 01-18 GM 6.6L Duramax

SKU: BDD1061825
$347.95
Yukon YGLGM11.5-30 Grizzly Locker for 11.5" in 30 Spline Axles | 2001-2018 GM Silverado/Sierra & 2003-2018 Dodge RAM 2500/3500
Yukon YGLGM11.5-30 Grizzly Locker for 11.5" in 30 Spline Axles | 2001-2018 GM Silverado/Sierra & 2003-2018 Dodge RAM 2500/3500
Yukon YGLGM11.5-30 Grizzly Locker for 11.5" in 30 Spline Axles | 2001-2018 GM Silverado/Sierra & 2003-2018 Dodge RAM 2500/3500
Yukon YGLGM11.5-30 Grizzly Locker for 11.5" in 30 Spline Axles | 2001-2018 GM Silverado/Sierra & 2003-2018 Dodge RAM 2500/3500
Yukon YGLGM11.5-30 Grizzly Locker for 11.5" in 30 Spline Axles | 2001-2018 GM Silverado/Sierra & 2003-2018 Dodge RAM 2500/3500
Yukon YGLGM11.5-30 Grizzly Locker for 11.5" in 30 Spline Axles | 2001-2018 GM Silverado/Sierra & 2003-2018 Dodge RAM 2500/3500

Yukon Gear And Axle

Yukon YGLGM11.5-30 Grizzly Locker for 11.5" in 30 Spline Axles | 2001-2018 GM Silverado/Sierra & 2003-2018 Dodge RAM 2500/3500

SKU: YUKYGLGM11.5-30
$1,757.89
Yukon YGGM11.5-342 Ring & Pinion Gear Set for 11.5" Axle 3.42 Ratio | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax & 03-18 Dodge RAM 2500/3500
Yukon YGGM11.5-342 Ring & Pinion Gear Set for 11.5" Axle 3.42 Ratio | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax & 03-18 Dodge RAM 2500/3500
Yukon YGGM11.5-342 Ring & Pinion Gear Set for 11.5" Axle 3.42 Ratio | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax & 03-18 Dodge RAM 2500/3500
Yukon YGGM11.5-342 Ring & Pinion Gear Set for 11.5" Axle 3.42 Ratio | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax & 03-18 Dodge RAM 2500/3500
Yukon YGGM11.5-342 Ring & Pinion Gear Set for 11.5" Axle 3.42 Ratio | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax & 03-18 Dodge RAM 2500/3500
Yukon YGGM11.5-342 Ring & Pinion Gear Set for 11.5" Axle 3.42 Ratio | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax & 03-18 Dodge RAM 2500/3500

Yukon Gear And Axle

Yukon YGGM11.5-342 Ring & Pinion Gear Set for 11.5" Axle 3.42 Ratio | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax & 03-18 Dodge RAM 2500/3500

SKU: YUKYGGM11.5-342
$933.89

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DIESEL TRUCK EXPERTS STANDING BY

Upgrading your tucks ring-and-pinion gears to allow your 2001-2004 GM 2500HD/3500HD build to accommodate larger tires to win back the acceleration lost and a proper powerband after installing larger tires. Aftermarket differentials supply additional power to both wheels on a single axle to improve traction and grip on any terrain and in every situation. A differential cover make maintenance a breeze and adds a great to your truck without compromise. Pair your new driveline 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
Front Gears
Rear Gears
Gear Packages
Install Kits
Differentials

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