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  1. Home
  2. GM Duramax
  3. 2011-2016 GM Duramax 6.6L LML
  4. Driveline

2011-2016 GM Duramax 6.6L LML Driveline Upgrades

Whether you're compensating for larger tires and wheels or just trying to make your 2011-2016 GM 6.6L Duramax LML one of the quickest trucks around, these premium driveline upgrades are here to help. More aggressive upgrades like ring-and-pinion gears allow your GM 2500/3500 get back the acceleration lost along with a proper power band. Aftermarket differentials offer up an excellent improvement in traction so you can handle just about any terrain on the planet. New differential covers make maintenance much easier while adding an impressive appeal to your truck. GM Duramax Fitments: 2011, 2012, 2013, 2014, 2015, 2016 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>2011-2016 6.6L LML
  • Front Gears Front Gears
  • Rear Gears Rear Gears
  • Gear Packages Gear Packages
  • Install Kits Install Kits
  • Differentials Differentials
  • Differential Covers Differential Covers

Products [41]

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Item In Cart 11-19 GM 2500/3500HD 6.6L Duramax LML / L5P PPE Transfer Case Brace
11-19 GM 2500/3500HD 6.6L Duramax LML / L5P PPE Transfer Case Brace
In Stock. Ships in 1 Business Day!
$134.99
View Details
Item In Cart 73-17 GM 6.6L Duramax 2500HD / 3500HD Mag Hytec Differential Cover
73-17 GM 6.6L Duramax 2500HD / 3500HD Mag Hytec Differential Cover
- Ships in 3-5 Business Days
$313.50
View Details
Item In Cart 80-20 GM 2500/3500/Vans/SUVs Mag-Hytec 14 Bolt High Capacity Differential Cover Fits GM 9.5 Axles GM14-9.5
80-20 GM 2500/3500/Vans/SUVs Mag-Hytec 14 Bolt High Capacity Differential Cover Fits GM 9.5 Axles GM14-9.5
In Stock. Ships in 1 Business Day!
$313.50
View Details
Item In Cart 01-17 GM 6.6L Duramax Mag Hytec Rear Differential Cover and Transmission Pan
01-17 GM 6.6L Duramax Mag Hytec Rear Differential Cover and Transmission Pan
- Ships in 3-5 Business Days
$599.00
View Details
Item In Cart Nitro Gear Front and Rear Gear Package | 11-17 GM Silverado/Sierra 2500/3500HD
Nitro Gear Front and Rear Gear Package | 11-17 GM Silverado/Sierra 2500/3500HD
- Ships in 3-5 Business Days
$1,519.00
View Details
Item In Cart Merchant 10193 Automotive Transfer Case Fluid 2 Quarts
Merchant 10193 Automotive Transfer Case Fluid 2 Quarts
In Stock. Ships in 1 Business Day!
$25.99
View Details
Item In Cart Wehrli WCF100113 Rear AAM 11.5
Wehrli WCF100113 Rear AAM 11.5" Differential Cover | 01-19 GM 6.6L Duramax 2500HD / 3500HD and 03-19 Dodge Ram Cummins
- Ships in 25-30 Business Day Lead Time.
$343.38
View Details
Item In Cart 99-13 GM 2500 / 3500HD Yukon Gear 4.56 Ratio Re-Gear Package for Dana 60 & GM 10.5
99-13 GM 2500 / 3500HD Yukon Gear 4.56 Ratio Re-Gear Package for Dana 60 & GM 10.5" 14 Bolt Trucks
Call 208-719-7400 for Availability!
$1,281.89
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Item In Cart 99-13 GM 2500 / 3500HD Yukon Gear 4.56 Thick Ratio Re-Gear Package for Dana 60 & GM 10.5
99-13 GM 2500 / 3500HD Yukon Gear 4.56 Thick Ratio Re-Gear Package for Dana 60 & GM 10.5" 14 Bolt Trucks
Call 208-719-7400 for Availability!
$1,336.89
View Details
Item In Cart 99-13 GM 2500 / 3500HD Yukon Gear 4.88 Ratio Re-Gear Package for Dana 60 & GM 10.5
99-13 GM 2500 / 3500HD Yukon Gear 4.88 Ratio Re-Gear Package for Dana 60 & GM 10.5" 14 Bolt Trucks
Call 208-719-7400 for Availability!
$1,281.89
View Details
Item In Cart 99-13 GM 2500 / 3500HD Yukon Gear 4.88 Thick Ratio Re-Gear Package for Dana 60 & GM 10.5
99-13 GM 2500 / 3500HD Yukon Gear 4.88 Thick Ratio Re-Gear Package for Dana 60 & GM 10.5" 14 Bolt Trucks
Call 208-719-7400 for Availability!
$1,336.89
View Details
Item In Cart 99-13 GM 2500 / 3500HD Yukon Gear 5.13 Ratio Re-Gear Package for Dana 60 & GM 10.5
99-13 GM 2500 / 3500HD Yukon Gear 5.13 Ratio Re-Gear Package for Dana 60 & GM 10.5" 14 Bolt Trucks
Call 208-719-7400 for Availability!
$1,281.89
View Details
Item In Cart 99-13 GM 2500 / 3500HD Yukon Gear 5.13 Thick Ratio Re-Gear Package for Dana 60 & GM 10.5
99-13 GM 2500 / 3500HD Yukon Gear 5.13 Thick Ratio Re-Gear Package for Dana 60 & GM 10.5" 14 Bolt Trucks
Call 208-719-7400 for Availability!
$1,336.89
View Details
Item In Cart 99-13 GM 2500 / 3500HD Yukon Gear 5.38 Ratio Re-Gear Package for Dana 60 & GM 10.5
99-13 GM 2500 / 3500HD Yukon Gear 5.38 Ratio Re-Gear Package for Dana 60 & GM 10.5" 14 Bolt Trucks
Call 208-719-7400 for Availability!
$1,281.89
View Details
Item In Cart 99-13 GM 2500 / 3500HD Yukon Gear 5.38 Thick Ratio Re-Gear Package for Dana 60 & GM 10.5
99-13 GM 2500 / 3500HD Yukon Gear 5.38 Thick Ratio Re-Gear Package for Dana 60 & GM 10.5" 14 Bolt Trucks
Call 208-719-7400 for Availability!
$1,336.89
View Details
Item In Cart 99-13 GM 2500 / 3500HD Yukon Gear 4.56 Thick Ratio Reverse Rotation Re-Gear Package for Dana 60 & GM 10.5
99-13 GM 2500 / 3500HD Yukon Gear 4.56 Thick Ratio Reverse Rotation Re-Gear Package for Dana 60 & GM 10.5" 14 Bolt Trucks
Call 208-719-7400 for Availability!
$1,281.89
View Details
Item In Cart 99-13 GM 2500 / 3500HD Yukon Gear 4.88 Thick Ratio Reverse Rotation Re-Gear Package for Dana 60 & GM 10.5
99-13 GM 2500 / 3500HD Yukon Gear 4.88 Thick Ratio Reverse Rotation Re-Gear Package for Dana 60 & GM 10.5" 14 Bolt Trucks
Call 208-719-7400 for Availability!
$1,281.89
View Details
Item In Cart 99-13 GM 2500 / 3500HD Yukon Gear 5.13 Thick Ratio Reverse Rotation Re-Gear Package for Dana 60 & GM 10.5
99-13 GM 2500 / 3500HD Yukon Gear 5.13 Thick Ratio Reverse Rotation Re-Gear Package for Dana 60 & GM 10.5" 14 Bolt Trucks
Call 208-719-7400 for Availability!
$1,281.89
View Details
Item In Cart 99-13 GM 2500 / 3500HD Yukon Gear 5.38 Thick Ratio Reverse Rotation Re-Gear Package for Dana 60 & GM 10.5
99-13 GM 2500 / 3500HD Yukon Gear 5.38 Thick Ratio Reverse Rotation Re-Gear Package for Dana 60 & GM 10.5" 14 Bolt Trucks
Call 208-719-7400 for Availability!
$1,281.89
View Details
Item In Cart 01-15 GM 2500 / 3500HD & 03-16 Dodge Ram 2500 / 3500 Yukon Gear Dura Grip Limited Slip differential for 11.5
01-15 GM 2500 / 3500HD & 03-16 Dodge Ram 2500 / 3500 Yukon Gear Dura Grip Limited Slip differential for 11.5" Axle 30 Spline
In Stock. Ships in 1 Business Day!
$1,421.89
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Item In Cart 01-15 GM 2500 / 3500HD & 03-16 Dodge Ram 2500 / 3500 Yukon Gear Grizzly Locker for 11.5
01-15 GM 2500 / 3500HD & 03-16 Dodge Ram 2500 / 3500 Yukon Gear Grizzly Locker for 11.5" 30 Spline Axles
Call 208-719-7400 for Availability!
$1,456.89
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Item In Cart 11-19 GM 2500 / 3500HD & 11-13 Dodge Ram 2500 / 3500 Yukon Gear Master Overhaul Kit for 11.5
11-19 GM 2500 / 3500HD & 11-13 Dodge Ram 2500 / 3500 Yukon Gear Master Overhaul Kit for 11.5" Differentials
In Stock. Ships in 1 Business Day!
$750.14
View Details
Item In Cart 11-15 GM 2500 / 3500HD Yukon Gear Rear 40.25
11-15 GM 2500 / 3500HD Yukon Gear Rear 40.25" Axle Shaft for 11.5" Differentials 30 Spline
Call 208-719-7400 for Availability!
$306.89
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Item In Cart 84-15 GM 2500 / 3500HD Yukon Gear Cut to Length Axle Shaft for 10.5
84-15 GM 2500 / 3500HD Yukon Gear Cut to Length Axle Shaft for 10.5"/11.5" Differentials 34.8"-38.8"
Call 208-719-7400 for Availability!
$380.89
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Item In Cart 94-15 GM 2500 / 3500HD Yukon Gear Cut to Length Axle Shaft GM 10.5
94-15 GM 2500 / 3500HD Yukon Gear Cut to Length Axle Shaft GM 10.5"/11.5" Differentials 30 Spline 38.2"-42.2"
Call 208-719-7400 for Availability!
$257.89
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Item In Cart 92-16 GM 2500 / 3500HD Yukon Gear Cut to Length Chromoly Full Float Axle Shaft for 10.5
92-16 GM 2500 / 3500HD Yukon Gear Cut to Length Chromoly Full Float Axle Shaft for 10.5"/11.5" Differentials 35.5"
Call 208-719-7400 for Availability!
$347.89
View Details
Item In Cart 01-12 GM 2500 / 3500HD Yukon Gear Chromoly Axle Shaft for 14T & 11.5
01-12 GM 2500 / 3500HD Yukon Gear Chromoly Axle Shaft for 14T & 11.5" Differentials 30 Spline Cut to Length 38.8"
Call 208-719-7400 for Availability!
$388.89
View Details
Item In Cart 01-12 GM 2500 / 3500HD Yukon Gear Chromoly Axle Shaft for 14T & 11.5
01-12 GM 2500 / 3500HD Yukon Gear Chromoly Axle Shaft for 14T & 11.5" Differentials 30 Spline Cut to Length 42.2"
Call 208-719-7400 for Availability!
$388.89
View Details
Item In Cart 88-15 GM 2500 / 3500HD Yukon Gear High Performance Front Ring & Pinion Set for 9.25
88-15 GM 2500 / 3500HD Yukon Gear High Performance Front Ring & Pinion Set for 9.25" IFS Reverse Rotation 3.42 Ratio
Call 208-719-7400 for Availability!
$449.89
View Details
Item In Cart 88-15 GM 2500 / 3500HD Yukon Gear High Performance Front Ring & Pinion Set for 9.25
88-15 GM 2500 / 3500HD Yukon Gear High Performance Front Ring & Pinion Set for 9.25" IFS Reverse Rotation 3.73 Ratio
Call 208-719-7400 for Availability!
$392.89
View Details
Item In Cart 88-15 GM 2500 / 3500HD Yukon Gear High Performance Front Ring & Pinion Set for 9.25
88-15 GM 2500 / 3500HD Yukon Gear High Performance Front Ring & Pinion Set for 9.25" IFS Reverse Rotation 4.11 Ratio
Call 208-719-7400 for Availability!
$394.85
View Details
Item In Cart 88-15 GM 2500 / 3500HD Yukon Gear High Performance Front Ring & Pinion Set for 9.25
88-15 GM 2500 / 3500HD Yukon Gear High Performance Front Ring & Pinion Set for 9.25" IFS Reverse Rotation 4.56 Ratio
Call 208-719-7400 for Availability!
$392.89
View Details
Item In Cart 88-15 GM 2500 / 3500HD Yukon Gear High Performance Front Ring & Pinion Set for 9.25
88-15 GM 2500 / 3500HD Yukon Gear High Performance Front Ring & Pinion Set for 9.25" IFS Reverse Rotation 4.88 Ratio
Call 208-719-7400 for Availability!
$436.89
View Details
Item In Cart 88-15 GM 2500 / 3500HD Yukon Gear High Performance Front Ring & Pinion Set for 9.25
88-15 GM 2500 / 3500HD Yukon Gear High Performance Front Ring & Pinion Set for 9.25" IFS Reverse Rotation 5.13 Ratio
Call 208-719-7400 for Availability!
$462.89
View Details
Item In Cart 88-15 GM 2500 / 3500HD Yukon Gear High Performance Front Ring & Pinion Set for 9.25
88-15 GM 2500 / 3500HD Yukon Gear High Performance Front Ring & Pinion Set for 9.25" IFS Reverse Rotation 5.38 Ratio
Call 208-719-7400 for Availability!
$436.89
View Details
Item In Cart 11-19 GM 2500 / 3500HD Yukon Gear Master Overhaul kit for 9.25
11-19 GM 2500 / 3500HD Yukon Gear Master Overhaul kit for 9.25" Differential
Call 208-719-7400 for Availability!
$889.14
View Details
Item In Cart 01-15 GM 2500 / 3500HD & 11-16 Dodge Ram 2500 / 3500 Yukon Gear Standard Open Spider Gear kit for 11.5
01-15 GM 2500 / 3500HD & 11-16 Dodge Ram 2500 / 3500 Yukon Gear Standard Open Spider Gear kit for 11.5" 30 Spline Axles
Call 208-719-7400 for Availability!
$204.89
View Details
Item In Cart 01-19 GM 6.6L Duramax 2500HD / 3500HD  ATS 11.5
01-19 GM 6.6L Duramax 2500HD / 3500HD ATS 11.5" 14-Bolt Differential Cover
In Stock. Ships in 1 Business Day!
$280.68
View Details
Item In Cart 01-14 GM 2500/3500HD 6.6L Duramax BD 2 Low UnLoc Wiring Differential Kit
01-14 GM 2500/3500HD 6.6L Duramax BD 2 Low UnLoc Wiring Differential Kit
In Stock. Ships in 1 Business Day!
$173.95
View Details
Item In Cart 03-18 Dodge 2500 3500 5.9L/6.7L Cummins & 01-18 GM 2500/3500HD 6.6L Duramax BD Rear AA14-11.5 Differential Cover
03-18 Dodge 2500 3500 5.9L/6.7L Cummins & 01-18 GM 2500/3500HD 6.6L Duramax BD Rear AA14-11.5 Differential Cover
In Stock. Ships in 1 Business Day!
$273.95
View Details
Item In Cart 01-19 Dodge/GM Applications Banks Differential Cover Kit
01-19 Dodge/GM Applications Banks Differential Cover Kit
In Stock. Ships in 1 Business Day!
$395.00
View Details
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Categories

  • Duramax
    • 2020-2022 Duramax L5P
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
      • Lift Kits
      • Tonneau Covers
      • Exterior
      • View More
    • 2017-2019 Duramax L5P
      • Engine Upgrades
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      • Tonneau Covers
      • Exterior
      • View More
    • 2011-2016 Duramax LML
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
      • Lift Kits
      • Tonneau Covers
      • Exterior
      • View More
    • 2007.5-2010 Duramax LMM
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
      • Lift Kits
      • Tonneau Covers
      • Exterior
      • View More
    • 2006-2007 Duramax LBZ
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
      • Lift Kits
      • Tonneau Covers
      • Exterior
      • View More
    • 2004.5-2005 Duramax LLY
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
      • Lift Kits
      • Tonneau Covers
      • Exterior
      • View More
    • 2001-2004 Duramax LB7
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
      • Lift Kits
      • Tonneau Covers
      • Exterior
      • View More
  • Powerstroke
    • 2020-2022 6.7L Powerstroke
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
      • Lift Kits
      • Tonneau Covers
      • Exterior
      • View More
    • 2017-2019 6.7L Powerstroke
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
      • Lift Kits
      • Tonneau Covers
      • Exterior
      • View More
    • 2011-2016 6.7L Powerstroke
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
      • Lift Kits
      • Tonneau Covers
      • Exterior
      • View More
    • 2008-2010 6.4L Powerstroke
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
      • Lift Kits
      • Tonneau Covers
      • Exterior
      • View More
    • 2003-2007 6.0L Powerstroke
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
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  • Cummins
    • 2019-2022 6.7L Cummins
      • Engine Upgrades
      • Exhaust Kits
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    • 2013-2018 6.7L Cummins
      • Engine Upgrades
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