2015 GMC Sierra 3500 HD Differentials

aFe Power’s new rear differential cover brings performance engineering to the protection of your axle’s differential. This differential cover is constructed out of durable cast aluminum with reinforced ribs for maximum strength. This cover comes with all necessary hardware for easy installation. Pro Series differential covers include an oil level sight glass and magnetic deep reach fill plug. This cover is finished with black powder-coating and machined fins for a distinctive look. PRO Guard D2 Synthetic 75W-90 Gear Oil: The supplied gear oil (4 quarts) exceeds the performance requirements of API GL-5 recommended for both open and limited slip applications. Increased Oil Capacity: This cover has an increased oil capacity over stock for better performance over a longer duration. Built-in Internal/External Fins: Built-in internal and external fins transfer heat from the oil to the outside air for maximum cooling. Magnetic Plugs: This system incorporates a magnetic drain and deep reach fill plug to capture loose particles for maximum protection. Calibration Plug: Calibration plug set to the factory oil level to eliminate overfilling. Oil Level Sight Glass: A pre-installed oil level sight glass allows quick and easy oil inspection. When it comes to engineering for power, performance, protection and value, aFe Power is the only choice.

Product Features:

• Durable Cast Aluminum
• Magnetic Drain and Fill Plugs Capture Loose Particles
• Calibration Plug Set to Factory Fill Level Eliminates Overfilling
• Oil Level Sight Glass for Quick/Easy Inspection

National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:

• Premium bearing design matches OEM specifications
• Precision manufactured using premium-grade steel for outstanding durability and performance
• Crowned raceways and rollers to ensure even load distribution for maximum life
• Industry leading coverage
• Professional technicians know they can depend on National

PINION SEAL

Yukon Minimum installation kits are a low cost solution for gear changes in newer vehicles where the bearings can be reused. This kit uses all high quality components to ensure a smooth set up. kit includes a pinion seal, crush sleeve (if applicable), complete shim kit, marking compound and brush.

Product Features:

• Fits GM and Chrysler 11.5″
• Included are a pinion seal, crush sleeve , complete shim kit, marking compound and brush.

11.5″ Chrysler Helical gear Type positraction.

Product Features:

• Fits GM and Chrysler 11.5″
• 30 spline

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• Meets or exceeds all original equipment specifications
• Application specific design to ensure a perfect fit
• Unsurpassed quality you can trust
• Validated for fit, form and function
• Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes

Product Features:

• Side gear spacer sleeve
• Fits GM 9.25″ IFS

Yukon Pinion installation kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings & races can be reused. This kit uses Timken bearings and races along with a high quality pinion seal and small parts. Included in this kit are the pinion bearings and races, pilot bearing (if applicable), crush sleeve (if applicable), complete pinion shim kit, pinion nut, thread locker, and marking compound with brush. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your pinion gear.

Product Features:

• Fits 2010 and down GM and Chrysler 11.5″
• Included are pinion bearings and races, pinion seal, crush sleeve, complete pinion shim kit, and marking compound with brush.

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• Meets or exceeds all original equipment specifications
• Application specific design to ensure a perfect fit
• Unsurpassed quality you can trust
• Validated for fit, form and function
• Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes

Product Features:

• MINI INSTALL KIT GM9.2IFS 98 & ON

The Yukon Dura Grip provides aggressive yet smooth traction to give you the confidence & performance you need. Get longer life and better traction with the heavy duty Yukon Dura Grip Positraction. The Yukon Dura Grip uses a nodular case and forged 4320 internals for added strength along with composite clutches for high performance and long life. All units are Rebuildable and many offer upgrades to increase aggressiveness for racing applications. Each unit carries a one year warranty against defects.

Product Features:

• Fits GM and Chrysler 11.5″ with 30 spline axles
• Clutch style positraction
• Smooth design
• Internal gears are manufactured using forged 4320 steel and cut to provide stronger teeth
• Fully rebuildable
• Assembled in the USA

11.5″ GM standard Open pinion gear Thrust washer.

Product Features:

• Pinion gear thrust washer
• Fits GM 11.5″

Yukon Master Overhaul kits give you all the high quality parts you need to start & finish every differential job. Yukon offers more tailor-made kits than any other manufacturer in the industry to meet your specific installation needs. This kit uses Timken bearings and races along with high quality seals and small parts. Included in this kit are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable), Thread locking compound, and marking compound with brush. Yukon’s Master Overhaul kits are the most comprehensive and complete kits on the market. They do extensive research to ensure that every kit is specially tailored to your application.

Product Features:

• Fits 2010 and down GM 9.25″ IFS
• Included are Timken bearings and races, pinion bearings and races, pinion seal, axle seals, complete shim kit, ring gear bolts, pinion nut, crush sleeve , thread locker, marking compound with brush, and silicone.

Redline Synthetic “Shock Proof” Oil. 3 Quarts.

Product Features:

• Includes three quarts of Redline Shockproof oil

USA Standard ring & pinion sets are the right choice to add confidence to your install. USA Standard Gear offers a full line of ring & pinion sets for a variety of common & hard to find applications. USA standard gear offers a standard one year warranty against defects on their ring & pinion sets.

Product Features:

• Fits GM 9.25″ front
• 9.25″ ring gear
• 30 spline pinion
• 12 ring gear bolts
• 3.42 ratio

Right hand adjuster lock for 9.25″ GM IFS.

Product Features:

• Side adjuster lock
• Fits 2010 and down GM 9.25″ IFS
• Right hand side

Product Features:

• Fits Chrysler and GM 11.5″ with 30 spline axles
• Provides 100% traction to both wheels at all times
• Not recommended for street driven vehicles

11.5″ GM standard Open cross pin shaft.

Product Features:

• Cross pin shaft
• Fits GM 11.5″

Differential Cover B

NO RETURN NP516549 SET-UP Bearing (1 SINGLE Bearing) for Dana 80 , 11.5AAM , 4.375″ OD .

Product Features:

• Set up bearing
• Fits NP5516549 pinion bearing
• Easily slips on and off pinion journal to allow for pinion depth adjustment

Replacment Pinion depth shims for Dana 80 (between pin head & bearing).

Product Features:

• Pinion depth shims for Dana Spicer 80
• Fits between pinion head and bearing

11.5 GM spanner adjuster nut.

Product Features:

• Side adjuster
• Fits GM 11.5″

Product Features:

• KIT SHIM SIDE 9.5″ GM

Motive Gear offers some of the toughest drive train components on the market today. If you are looking for the largest line of performance ring and pinion gear options available with gear sets in a wide range of ratios for nearly every application, both o

Crush Sleeve for Chrysler 9.25″ front, GM 8.6″ IRS, 9.25″ IFS & 9.5″. Approx 0.640″ long.

Product Features:

• Crush sleeve for Chrysler 9.25″ front, GM 8.6″ IRS, 9.25″ IFS and 9.5″
• 0.640″ tall

The Yukon Grizzly Locker is the ultimate in locking differentials for street, off-road, & drag racing. Grizzly Lockers provide 100% power to both tires, while still allowing for disengagement while negotiating turns. The Yukon Grizzly locker is a mechanical locking differential. It features a forged case and 8620 internals for maximum strength. It’s patented design reduces common locker failures. All units assembled in the USA! All Grizzly Lockers are backed by the best warranty in the business! Yukon covers the replacement unit and covers any collaterally damaged parts and associated labor, up to $2,000!

Product Features:

• Fits GM and Chrysler 11.5″ with 30 spline axles
• Patented internal design reduces common locker failures
• 8620 internals for added strength
• Assembled in the USA

11.5AAM GM & Chrysler (fits All Years) UNIVERSAL standard Open spider gear kit.

Product Features:

• Spider gear kit
• Fits GM and Chrysler 11.5″ open differential
• Includes two side gears, two pinion gears, cross pin shaft, roll pin and spider gear thrust washers.