2015 GMC Sierra 3500 HD Differentials

Keep Your 2015 GMC Sierra 3500 HD in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 2015 GMC Sierra 3500 HD looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Rear Housing Cover Gaskets, Differential Oil, and Differential Covers. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Differentials from Trusted Brands

Looking for a reliable Differential? We’ve got you covered with options from brands you know and trust like FELPRO, Royal Purple, and Valvoline. For example, FELPRO Differentials start at just $14.99 with an average 4.6 star rating. Royal Purple and Valvoline offer similar pricing and quality, backed by strong customer feedback. With over 1,216 reviews and a solid 4 star average, you can shop with confidence knowing other GMC Sierra 3500 HD owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2015 GMC Sierra 3500 HD Differential at Advance Auto Parts is around $530.20, with a range that starts at $2.99 and goes up to $3,169.99. With 102 options in stock from 12 trusted brands, finding the right fit is easy. Popular picks like DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart, Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart, and Differential Cover B start at just $7.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Differential, don’t forget to check out other key components like 4WD Components and Universal Joints. At Advance Auto Parts, we’re here to help you keep your 2015 GMC Sierra 3500 HD in peak condition, inside and out.

Essential 2015 GMC Sierra 3500 HD Differentials

Royal Purple – High Performance 5W-30 Synthetic Engine Oil, Better Wear Protection, 5 Quart (Part No.51530)

High Performance 5W-30 Synthetic Engine Oil, Better Wear Protection, 5 Quart

from

$41.99
Royal Purple Motor Oil is a specially formulated multi viscocity oil for use in gasoline and diesel engines of all types from cars and trucks to SUVs, motorcycles and boats. Royal Purple(R) Motor Oil with Synerlec(R) additive technology reduces friction, which results in a 1-3 percent increase in horsepower, lowers operating temperatures, provides superior corrosion protection, improves fuel economy, reduces emissions and extends oil life. A.P.I. Certified.

Product Features:
  • Better wear protection
  • Increased fuel efficiency
  • Better protection of the expensive catalytic emission system
  • Improved compatibility with fuels containing ethanol
  • Superior corrosion protection
  • Meets ILSAC GF-5 and Dexos1 performance requirements
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Motive Gear – Differential Pinion Shim Kit (Part No.1102)

Differential Pinion Shim Kit

from

$9.99


Product Features:
  • KIT SHIM PINION
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USA Standard Gear – Master Overhaul Kit for Mid 2011 & Up GM & Chrysler 11.5" AAM Differential (Part No.37074)

Master Overhaul Kit for Mid 2011 & Up GM & Chrysler 11.5" AAM Differential

from

$604.99
USA Standard Master Overhaul kits let you finish your install with confidence. This kit uses Koyo bearings and races. Included 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), threading locking compound, marking compound with brush and gasket.

Product Features:
  • Fits 2011 and up GM and Chrysler 11.5″
  • Uses Koyo bearings and races
  • Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve, thread locker, marking compound with brush and gasket.
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National – Bearing Race (Part No.HM88610)

Bearing Race

from

$15.49
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.

Product Features:
  • PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
  • SMOOTH ROTATION – Crowned raceways for even load distribution
  • OE-STYLE DESIGN – Engineered to meet OE specifications
  • COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
  • RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on
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Yukon Gear – Adapter Sleeve Fro GM 11.5" & 10.5" 14 Bolt Truck Yokes To Use Triple Lip Pinion Seal (Part No.41209)

Adapter Sleeve Fro GM 11.5" & 10.5" 14 Bolt Truck Yokes To Use Triple Lip Pinion Seal

from

$29.99
Product Features:
  • Adapter sleeve
  • Fits GM 10.5″ 14 bolt truck and GM 11.5″
  • Converts to triple lip seal
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USA Standard Gear – Spider Gear Kit For GM 11.5" (Part No.39020)

Spider Gear Kit For GM 11.5"

from

$208.99
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.
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Dorman – Differential Cover (Part No.697-712)

Differential Cover

from

$89.99
This direct replacement differential cover matches the fit and function of the original equipment diff cover for a reliable, leak-free repair. It features a durable design, made to strict specifications, to help ensure reliable service life.

Product Features:
  • Direct replacement – this differential cover matches the fit and function of the original equipment diff cover on select vehicles
  • Reliable repair – the smart solution for fixing an existing cover that’s rusted, damaged or leaking differential fluid
  • Durable construction – this differential cover is made according to strict engineering standards to help ensure dependability
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
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National – Multi-Purpose Bearing (Part No.A-59)

Multi-Purpose Bearing

from

$202.99
Product Features:
  • CONSISTENT PERFORMANCE: Matched cup and cone components ensure consistent performance
  • PREMIUM MATERIALS: Precision manufactured using premium-grade steel for outstanding durability and performance
  • SMOOTH ROTATION: Crowned raceways and rollers for even load distribution
  • OE-STYLE DESIGN: Engineered to meet OE specifications
  • COMPREHENSIVE COVERAGE: Industry-leading coverage for domestic and import applications
  • RIGOROUS TESTING: Comprehensive testing throughout design and development processes by National engineers for quality you can count on
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Yukon Gear – Dura Grip For GM & Chrysler 11.5", 30 Spline (Part No.26033)

Dura Grip For GM & Chrysler 11.5", 30 Spline

from

$1485.00
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
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Dorman – Differential Pinion Yoke Kit (Part No.697-154)

Differential Pinion Yoke Kit

from

$149.99
Worn or damaged differential end yoke causing driveline vibrations? This direct replacement end yoke matches the original equipment part for a trustworthy repair and reliable performance.

Product Features:
  • Direct replacement – this differential end yoke matches the fit and construction of the original yoke
  • Excellent value – this replacement end yoke offers original equipment quality at a fraction of the price of dealer parts
  • Quality materials – this end yoke is machined from cast iron for strength and is precision machined for reliability
  • Validated fit – this differential end yoke has been tested to confirm accurate fit
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Yukon Gear – Grizzly Locker For GM & Chrysler 11.5" With 38 Spline Axles (Part No.28014)

Grizzly Locker For GM & Chrysler 11.5" With 38 Spline Axles

from

$1929.99
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 factory spindles will need to be machined in order to accept the axles this locker uses. 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 38 spline axles
  • Patented internal design reduces common locker failures
  • 8620 internals for added strength
  • Assembled in the USA
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Yukon Gear – GM Side Gear Spacer Sleeve For GM 9.25" IFS (Part No.33533)

GM Side Gear Spacer Sleeve For GM 9.25" IFS

from

$40.99
Product Features:
  • Side gear spacer sleeve
  • Fits GM 9.25″ IFS
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Yukon Gear – Differential Cover B (Part No.33572)

Differential Cover B

from

$7.99
Differential Cover B

Motive Gear – Differential Gear Install Kit (Part No.GM11.5IK)

Differential Gear Install Kit

from

$74.99
All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of our products undergo rigid quality control processes to insure proper fit, performance and longevity. Motive Gear products can be found in the winners circle at NHRA, IHRA, NMRA, NMCA, SODA, SCORE, BITD, Ultra-4 and NASCAR events because we offer unmatched selection and quality demanded by racers and their crew chiefs – the same quality and selection demanded by DIY customers and top mechanics. With four warehouses strategically located across North America, most Motive Gear orders arrive within 2-4 days. Win with Motive Gear!
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Yukon Gear – Standard Open Cross Pin Bolt Lock Ring For 11.5" GM (Part No.33408)

Standard Open Cross Pin Bolt Lock Ring For 11.5" GM

from

$16.99
Standard Open cross pin bolt lock ring for 11.5″ GM.

Product Features:
  • Cross pin bolt lock ring
  • Fits GM 11.5″
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Yukon Gear – High Performance Ring & Pinion Gear Set For GM 11.5" In A 3.73 Ratio (Part No.24441)

High Performance Ring & Pinion Gear Set For GM 11.5" In A 3.73 Ratio

from

$889.99
Yukon Ring & Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of conditions. Whether it’s on the street, off-road, or at the track; Yukon ring & pinion sets deliver unrivaled performance & quality. Yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up. All Yukon ring & pinion sets come standard with a one-year warranty.

Product Features:
  • Fits GM and Chrysler 11.5″
  • 11.50″ ring gear diameter
  • 30 spline pinion
  • 12 ring gear bolts
  • 3.73 ratio
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Yukon Gear – Axle Shaft (Part No.21848)

Axle Shaft

from

$256.99
Axle Shaft

Yukon Gear – Standard Open And Gov-Loc Cross Pin For 9.5" GM (Part No.33402)

Standard Open And Gov-Loc Cross Pin For 9.5" GM

from

$32.99
Standard open and Gov-Loc cross pin for 9.5″ GM.

Product Features:
  • Cross pin shaft
  • Fits GM 9.5″
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Yukon Gear – Standard Open And Gov-Loc Cross Pin Bolt With M10X1.5 Thread For 9.5" And 9.25" GM IFS (Part No.33342)

Standard Open And Gov-Loc Cross Pin Bolt With M10X1.5 Thread For 9.5" And 9.25" GM IFS

from

$23.99
Product Features:
  • Cross pin bolt
  • Fits GM 9.5″ and 9.25″ IFS
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Motive Gear – Pinion Nut (Part No.1260823)

Pinion Nut

from

$8.49
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 on and off-road, check out Motive Gear. Motive Gear products can be found in the winner’s circle at racing events worldwide. The superior quality of Motive Gear components is the result of years of racing development, outstanding design and state-of-the-art manufacturing methods. Extensive testing is performed on all products by our in-house engineers.
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Yukon Gear – 11.5" Chrysler & GM Cover Gasket (Part No.23013)

11.5" Chrysler & GM Cover Gasket

from

$44.99
11.5″ Chrysler & GM cover gasket.

Product Features:
  • Cover gasket
  • Fits GM and Chrysler 11.5″
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Yukon Gear – Spool For GM & Chrysler 11.5", 30 Spline (Part No.32185)

Spool For GM & Chrysler 11.5", 30 Spline

from

$2100.00
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
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Yukon Gear – 11.5" GM Standard Open Pinion Gear Thrust Washer (Part No.33388)

11.5" GM Standard Open Pinion Gear Thrust Washer

from

$15.99
11.5″ GM standard Open pinion gear Thrust washer.

Product Features:
  • Pinion gear thrust washer
  • Fits GM 11.5″
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Dorman – Ring and Pinion Master Installation Kit (Part No.697-039)

Ring and Pinion Master Installation Kit

from

$376.99
This differential bearing kit includes all necessary installation components for a differential ring and pinion on certain vehicle years, makes and models.

Product Features:
  • Convenient kit – this ring and pinion bearing installation kit includes all necessary components for a complete repair on certain vehicle applications
  • Related repair – smart to have on hand when installing a differential ring and pinion
  • Durable construction – built for reliable longevity, free of defects in materials and workmanship
  • Trustworthy quality – backed by team of designers and engineers in the United States
  • Contents: Bearings; Shims; Crush Collar; Hardware; Gasket Material; Gear Marking Compound; Application Brush; Thread Lock Compound
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Yukon Gear – 11.5" Chrysler & GM Helical Gear Type Positraction (Part No.32244)

11.5" Chrysler & GM Helical Gear Type Positraction

from

$1806.99
11.5″ Chrysler Helical gear Type positraction.

Product Features:
  • Fits GM and Chrysler 11.5″
  • 30 spline
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Yukon Gear – Pinion Install Kit For GM 9.25" Differential (Part No.13074)

Pinion Install Kit For GM 9.25" Differential

from

$319.99
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 GM 9.25″ IFS
  • Included are pinion bearings and races, pinion seal, crush sleeve, complete pinion shim kit, and marking compound with brush.
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Yukon Gear – GM 9.25" IFS Side Adjuster Lock, ’11 & Up (Part No.33359)

GM 9.25" IFS Side Adjuster Lock, '11 & Up

from

$38.99
GM 9.25″ IFS side adjuster lock, ’11 & up.

Product Features:
  • Side adjuster lock
  • Fits 2011 and up GM 9.25″ IFS
See More

Yukon Gear – Left Hand Carrier Bearing Adjuster For 9.25" GM IFS (Part No.33362)

Left Hand Carrier Bearing Adjuster For 9.25" GM IFS

from

$98.99
Left hand carrier bearing adjuster for 9.25″ GM IFS.

Product Features:
  • Side adjuster
  • Fits 2010 and down GM 9.25″ IFS
  • Left hand side
See More

Most Popular Rear Housing Cover Gaskets for 2015 GMC Sierra 3500 HDs

Enhance your 2015 GMC Sierra 3500 HD with one of the 2 Rear Housing Cover Gaskets we have in stock, starting at just $14.99.

Felpro – Axle Housing Cover Gasket Irregular Shaped 14 Bolt Hole Gasket (Part No.RDS 55478)

Axle Housing Cover Gasket Irregular Shaped 14 Bolt Hole Gasket

from

$14.99
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
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Felpro – Axle Housing Cover Gasket Irregular Shaped 14 Bolt Hole Gasket (Part No.RDS 55486)

Axle Housing Cover Gasket Irregular Shaped 14 Bolt Hole Gasket

from

$16.99
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
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Best-Selling 2015 GMC Sierra 3500 HD Differential Oil

Upgrade your Sierra 3500 HD with one of our 6 best-selling Differential Oil, earning an average 5 stars rating across 135 reviews.

Royal Purple – High Performance 5W-30 Synthetic Engine Oil, Better Wear Protection, 5 Quart (Part No.51530)

High Performance 5W-30 Synthetic Engine Oil, Better Wear Protection, 5 Quart

from

$41.99
Royal Purple Motor Oil is a specially formulated multi viscocity oil for use in gasoline and diesel engines of all types from cars and trucks to SUVs, motorcycles and boats. Royal Purple(R) Motor Oil with Synerlec(R) additive technology reduces friction, which results in a 1-3 percent increase in horsepower, lowers operating temperatures, provides superior corrosion protection, improves fuel economy, reduces emissions and extends oil life. A.P.I. Certified.

Product Features:
  • Better wear protection
  • Increased fuel efficiency
  • Better protection of the expensive catalytic emission system
  • Improved compatibility with fuels containing ethanol
  • Superior corrosion protection
  • Meets ILSAC GF-5 and Dexos1 performance requirements
See More

Valvoline – DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart (Part No.822405)

DEXRON - VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart

from

$14.49
Valvoline DEXRON-VI/MERCON LV ATF is a full-synthetic transmission fluid formulated with advanced additive technology to meet and exceed the requirements of the General Motors DEXRON-VI specification. It is officially licensed and approved by GM and is fully back-serviceable and can be used wherever DEXRON-II and/or DEXRON-III are recommended. Recommended for use in the following applications: DEXRON-VI, DEXRON-III, DEXRON-II, and Allison C-4.

Product Features:
  • Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions
  • Enhanced anti-shudder protection for smooth shifting and maximum power transfer
  • Developed with anti-wear technology to help improve transmission durability
  • Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
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Valvoline – Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart (Part No.889785)

Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart

from

$18.99
We’ve squeezed innovation into every ounce of Valvoline FlexFill SAE 75W-90 Full Synthetic Gear Oil, the ultimate gear protection in hypoid rear differentials and non-synchronized manual transmissions. Our unique new flexible pouch makes getting into the tightest places to lubricate gears easier than ever and with less waste. The superior detergent package-based formulation contains fully synthetic basestocks and special additives that help protect parts from rust and corrosion while providing exceptional high and low temperature protection and excellent thermal stability, especially in demanding driving situations such as towing and off-roading. It contains an extreme pressure additive for better load carrying capacity, wear resistance additives that assist in protecting gear teeth, a limited slip additive for optimal clutch pack performance, and an anti-foaming agent for better lubrication and service life. Valvoline FlexFill SAE 75W-90 Full Synthetic Gear Oil is recommended for use in axle applications requiring factory-fill or drain-and-fill levels for limited slip performance.

Product Features:
  • FLEXIBLE POUCH FOR EASIER USE WITH LESS WASTE in tight, hard to reach undercarriage situations.
  • EXCEPTIONAL HIGH AND LOW TEMPERATURE PROTECTION ranging from -30F to 300F degrees for dependable coverage year-round
  • REDUCES CHATTERING AND PROTECTS GEAR TEETH from oxidation, rust, and wear
  • MEETS THE DEMANDS OF CONVENTIONAL AND LIMITED SLIP REAR DIFFERENTIALS where API GL-5 is specified, as well as non-synchronized manual transmissions that require API GL-4 or MT-1 fluid
  • MEETS OR EXCEEDS PERFORMANCE REQUIREMENTS for Mack GO-H and GO-J; API GL-5 and API MT-1; MIL-PRF-2105E; and SAE J2360
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Yukon Gear – Redline Synthetic "Shock Proof" Oil With Positraction Additive – 4 Quarts (Part No.15005)

Redline Synthetic "Shock Proof" Oil With Positraction Additive - 4 Quarts

from

$148.99
Redline Synthetic “Shock Proof” Oil with positraction Additive. 4 Quarts.

Product Features:
  • Includes four quarts of Redline Shockproof oil and one 4oz bottle of Yukon positraction additive
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Yukon Gear – Redline Synthetic "Shock Proof" Oil – 3 Quarts (Part No.15000)

Redline Synthetic "Shock Proof" Oil - 3 Quarts

from

$99.99
Redline Synthetic “Shock Proof” Oil. 3 Quarts.

Product Features:
  • Includes three quarts of Redline Shockproof oil
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Yukon Gear – Redline Synthetic "Shock Proof" Oil – 4 Quarts (Part No.15004)

Redline Synthetic "Shock Proof" Oil - 4 Quarts

from

$137.99
Redline Synthetic “Shock Proof” Oil. 4 Quarts.

Product Features:
  • Includes four quarts of Redline Shockproof oil
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Top-Quality Differential Covers for 2015 GMC Sierra 3500 HDs

Choose a high-quality OEM or aftermarket Differential Cover for GMC Sierra 3500 HDs and enjoy top-notch performance from $146.99.

Yukon Gear – Steel Cover For Chrysler & GM 11.5", With O Fill Plug (Part No.32330)

Steel Cover For Chrysler & GM 11.5", With O Fill Plug

from

$146.99
Product Features:
  • Fits GM and Chrysler 11.5″
  • Steel
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Yukon Gear – Finned Aluminum Cover For Dodge & GM 11.5" Aam Rear Axle (Part No.32346)

Finned Aluminum Cover For Dodge & GM 11.5" Aam Rear Axle

from

$389.99
Product Features:
  • Fits Chrysler and GM 11.5″
  • Finned aluminum
See More

aFe POWER – Differential Cover (Part No.46-71050B)

Differential Cover

from

$558.99
aFe Power’s new front 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. 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
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aFe POWER – Differential Cover (Part No.46-71050A)

Differential Cover

from

$296.99
aFe Power’s new front 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 and machined fins for maximum strength and styling. This cover comes with all necessary hardware for easy installation. This cover has about a 2 quart lube capacity at the factory line. Built-in internal and external fins transfer heat from the fluid to the outside air for maximum cooling. This system incorporates a magnetic drain plug to capture loose particles for maximum front-end protection. Also included is a 1/8″ NPT calibration plug that is set to the factory fluid level which eliminates accidental overfilling.

Product Features:
  • Durable Cast Aluminum
  • Magnetic Drain Plug Captures Loose Particles
  • Calibration Plug Set to Factory Fill Level Eliminates Overfilling
  • Built-In External and Internal Fins Dissipate Heat
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Our Top Pick for a 2015 GMC Sierra 3500 HD Rear Differential Cover Gasket

Invest in a durable Rear Differential Cover Gasket for your 2015 GMC, knowing you’re getting trusted brands and expert craftsmanship.

Yukon Gear – 11.5" Chrysler & GM Cover Gasket (Part No.23013)

11.5" Chrysler & GM Cover Gasket

from

$44.99
11.5″ Chrysler & GM cover gasket.

Product Features:
  • Cover gasket
  • Fits GM and Chrysler 11.5″
See More

Differential Bearings for 2015 GMC Sierra 3500 HDs

Make a smart move for your 2015 GMC Sierra 3500 HD with products all priced from $16.79 to $38.99.

National – Bearing Race (Part No.3920)

Bearing Race

from

$16.79
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.

Product Features:
  • PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
  • SMOOTH ROTATION – Crowned raceways for even load distribution
  • OE-STYLE DESIGN – Engineered to meet OE specifications
  • COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
  • RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on
See More

National – Tapered Roller Bearing Cone (Part No.JLM506849A)

Tapered Roller Bearing Cone

from

$38.99
Product Features:
  • PREMIUM MATERIALS: Precision manufactured using premium-grade steel for outstanding durability and performance
  • SMOOTH ROTATION: Crowned raceways and rollers for even load distribution
  • OE-STYLE DESIGN: Engineered to meet OE specifications
  • COMPREHENSIVE COVERAGE: Industry-leading coverage for domestic and import applications
  • RIGOROUS TESTING: Comprehensive testing throughout design and development processes by National engineers for quality you can count on
See More

Top-Rated Differential Brands For Your 2015 GMC Sierra 3500 HD

When it comes to finding the perfect Differential for your 2015 GMC Sierra 3500 HD, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 12 trusted brands. We carry the most popular Differential brands including Royal Purple, Valvoline, and FELPRO, and more, all known for their exceptional customer ratings (average brand rating of 4.8 stars) and competitive prices, as low as $14.49. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 2015 GMC Sierra 3500 HD, providing peace of mind with parts that meet or exceed OEM standards.

Popular Royal Purple 2015 GMC Sierra 3500 HD Differentials

If you’re looking for a top-quality Differential for your 2015 GMC Sierra 3500 HD, Advance Auto Parts has exactly what you need with our selection of Royal Purple Differentials. We have 1 Royal Purple Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $41.99, you’ll find the perfect Differential for your needs and budget. Royal Purple Differentials for the 2015 GMC Sierra 3500 HD come highly rated, with over 133 customer reviews and an impressive average rating of 4.8 stars. Choosing a Royal Purple Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

Top-Quality Valvoline 2015 GMC Sierra 3500 HD Differentials

For those in search of a high-quality Differential for their 2015 GMC Sierra 3500 HD, Advance Auto Parts offers a great selection of Valvoline Differentials. With 1 Valvoline Differentials in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Differentials start at just $14.49, giving you a range of options to suit your budget. Backed by over 2 customer ratings and an average rating of 4.8 stars, Valvoline Differentials provide both reliability and excellent performance. Choosing a Valvoline Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
DEXRON - VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart
from $14.49
(2)
DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart
“I’ve used this in my 2005 2500HD since I bought the truck with 20k on it now at 280k changed every other year maybe 40k I’d put on in two years, I pu”

FAQs for 2015 GMC Sierra 3500 HD Differentials

What are the best-selling Differentials for 2015 GMC Sierra 3500 HDs?

Out of 102 Differentials that fit 2015 GMC Sierra 3500 HDs, the following parts are the top sellers:

What’s the price range for 2015 GMC Sierra 3500 HD Differentials?

The prices of Differentials for the 2015 GMC Sierra 3500 HD range from $2.99 up to $3,169.99 for the most premium parts.

What is the average price of a Differential for a 2015 GMC Sierra 3500 HD?

The average price for Differentials for the 2015 GMC Sierra 3500 HD is $530.20. Keep in mind the variety of part types within our Differential category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Differentials for other GMC Sierra 3500 HD model years?

Yes, we carry Differentials for 18 model years of GMC Sierra 3500 HDs between 2007 and 2026. The following model years are the most popular for Differential purchases: 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, and 2014.

What are the cheapest Differentials for my 2015 GMC Sierra 3500 HD?

The cheapest 2015 GMC Sierra 3500 HD Differentials we carry are:

Does Advance Auto Parts sell Differentials for any other 2015 GMC models?

Yes. We stock Differentials for 9 other popular 2015 GMC models. Some of the most popular are 2015 Yukon Differentials, 2015 Sierra 1500 Differentials, 2015 Sierra 2500 HD Differentials, 2015 Savana 2500 Differentials, and 2015 Savana 3500 Differentials.

What are the top-rated Differentials that fit the 2015 GMC Sierra 3500 HD?

The one 2015 GMC Sierra 3500 HD Differential we have in stock is the Differential Crush Sleeve. It costs $2.99.

What types of Differentials do you sell for my 2015 GMC Sierra 3500 HD?

As of 11/2/25, these are some of the most in-demand types of Differentials for a 2015 GMC Sierra 3500 HD:

Can I get help with 2015 GMC Sierra 3500 HD Differential orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about GMC Differentials and more.

What is your return policy for GMC Sierra 3500 HD Differentials?

Advance Auto Parts keeps returns simple. For new GMC Sierra 3500 HD Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.