2008 GMC Sierra 2500 HD Differentials

Keep Your 2008 GMC Sierra 2500 HD in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 2008 GMC Sierra 2500 HD looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Bearings, Rear Differential Cover Gaskets, 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 Dorman, FELPRO, and National. For example, Dorman Differentials start at just $46.99 with an average 4.2 star rating. FELPRO and National offer similar pricing and quality, backed by strong customer feedback. With over 2,235 reviews and a solid 4 star average, you can shop with confidence knowing other GMC Sierra 2500 HD owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2008 GMC Sierra 2500 HD Differential at Advance Auto Parts is around $442.80, with a range that starts at $2.99 and goes up to $4,069.99. With 258 options in stock from 15 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 Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket start at just $8.29 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 2008 GMC Sierra 2500 HD in peak condition, inside and out.

Looking for the perfect Differential for your 2008 GMC Sierra 2500 HD? You’re in the right place. Below, you’ll find links to various types of Differentials that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Differentials, ensuring durability and a precise fit for your GMC Sierra 2500 HD. Whether you’re driving a 2008 model or another popular model year like 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, and 2023, we’ve got you covered. Purchasing Differentials from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Differentials that fit your vehicle.

Essential 2008 GMC Sierra 2500 HD Differentials

from

$304.99

Yukon 1480 Lifetime Series U/Joint. 4.188″ snap ring span, 1.375″ cap diameter. Outside snap ring.

Product Features:

Clutch kit
Fits GM 10.5″ 14 bolt truck with Eaton positraction
Carbon fiber clutches

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$21.99

Product Features:

KIT SHIM SIDE 9.5″ GM

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$508.99

This kit uses Koyo bearings and races along with all high quality small parts. kit includes carrier bearings and races, pinion bearings and races, pinion seal, crush sleeve (if applicable), oil baffles and slingers (if applicable), marking compound and brush. USA Standard Gear does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your ring & pinion set.

Product Features:

Fits 2011 and up GM 9.25″ IFS
Uses Koyo bearings and races
Included are carrier bearings and races, pinion bearings and races, pinion seal, pinion nut, crush sleeve, marking compound and brush.

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$462.99

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 2011 and up GM and Chrysler 11.5″
Included are pinion bearings and races, pinion seal, crush sleeve, complete pinion shim kit, and marking compound with brush.

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$10.29

Formulated to meet the specific requirements of Subaru vehicles equipped with conventional (non-CVT) transmissions up to model year 2005. Recommended for service-fill in all Subaru automatic transmissions where SUBARU ATF HP is specified. Fuel economy demands and more sophisticated electronic controls have made automatic transmissions not only more complex, but also unique to each vehicle manufacturer. Long gone are the days of having just a couple choices of automatic transmission fluid type. Idemitsu is the factory fill Automatic Transmission Fluid (ATF) supplier to most Asian imports. Idemitsu application-specific ATF products match the exact friction materials and performance requirements of each different vehicle model for which they are made.

Product Features:

Excellent resistance to oxidation and thermal breakdown provide long fluid life and extended protection
Precisely engineered frictional characteristics guarantee smooth shifting and outstanding anti-shudder performance
Excellent resistance to oxidation and thermal breakdown provide long fluid life and extended protection
Excellent seal compatibility and conditioning reduces risk of fluid leaks due to seal shrinkage, hardening and cracking
Advanced anti-wear technology provides maximum protection to gears and bearings
Precisely engineered frictional characteristics guarantee smooth shifting and outstanding anti-shudder performance
Provides superior cleanliness, maintaining the transmission free of sludge and varnish deposits
Excellent seal compatibility and conditioning reduces risk of fluid leaks due to seal shrinkage, hardening and cracking
Advanced anti-wear technology provides maximum protection to gears and bearings

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$40.99

DIFF COVER KIT

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$5.99

DiffrlPinSupportBolt

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$2332.99

Remanufactured Rear Axle assemblies are completely disassembled, thoroughly cleaned and reassembled using new wear parts. Units are assembled, sealed & include backing plates, axle shafts & fluid.

Product Features:

Rear axles are assembled with backing plates & axle shafts, and filled with fluid prior to shipping
Axles are fully painted & shipped securely in environmentally safe and recyclable containers that are the perfect size for returning your original core
Our complete Rear axle assemblies mean you just hang brakes, connect suspension & go! Your installation will be simple and trouble free
Remember to match axle ratio to original. For 4WD rear axle must match front axle ratio

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$41.99

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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$22.99

Product Features:

KIT SHIM GM 10.5 14 BLT

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$37.99

National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:

Designed to repair damaged, grooved or worn shafts
Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
Easy to install with removable flange and installation tool
Installation tool reduces sleeve distortion and allows for installation without removal from the shaft

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$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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$16.99

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

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$487.99

The Powertrax Lock-Right ultra-strength alloy locker’s straight-line performance is equal to a solid spool, but automatically unlocks in turns. Best suited for extreme off-road to severe on-road use, Powertrax Lock Right lockers replace the spider gears in your open differential carrier using basic tools and without affecting your ring and pinion settings. The whole job can be done in your driveway in a couple of hours, pin included! Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!

Product Features:

Powertrax® proves that you don’t have to choose between the superior traction of a locking differential and smooth handling and drivability of an open differential. Powertrax Lock-Right Lockers, No-Slip Traction Systems and GRIP limited slip differentials and lockers give you the best of both worlds!
The Powertrax® Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Powertrax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.
Powertrax® lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.
Powertrax® offers three levels of GRIP locking differentials, ranging from the clutch-type GRIP LS with a forged steel case, the gear-driven GRIP PRO and finally the GRIP LOK for extreme traction.
Powertrax® = Extreme Traction Systems!

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$6.79

This differential pinion shaft lock bolt is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:

Direct replacement – this differential pinion shaft lock bolt matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this bolt is a reliable replacement for an original part that is missing or has failed due to fatigue
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

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$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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$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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$48.99

10.5″ GM 14 bolt truck pinion nut. 1 1/2″ socket, 15/16″ x 16 thread.

Product Features:

Pinion nut for GM 10.5″ 14 bolt truck
15/16″ x 16 thread
1.5″ socket

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$606.99

Yukon positraction internals for 9.5″ GM with 33 spline axles. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. This kit does not include clutches. All components come with a one year warranty against manufacturing defects. These internals are for Eaton positractions only. They will not fit factory positractions.

Product Features:

Spider gear kit
Fits GM 9.5″ with Eaton positraction
Includes two side gears, four pinion gears, cross pin shaft, roll pin and spider gear thrust washers.

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$8.99

Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered for the sealing repair environment
Validated for fit, form and function
Unsurpassed quality you can trust

from

$7.99

14T side gear Thrust washer.

Product Features:

Side gear thrust washer
Fits GM 10.5″ 14 bolt truck

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$354.99

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 10.5″ GM 14 bolt truck
10.50″ ring gear diameter
30 spline pinion
12 ring gear bolts
5.38 ratio
Thick gear for 4.10 and down carrier

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$8.99

14T pinion gear Thrust washer.

Product Features:

Pinion gear thrust washer
Fits GM 10.5″ 14 bolt truck

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$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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$52.99

Product Features:

MINI INSTALL KIT GM9.2IFS 98 & ON

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$188.99

Bearing race driver. No return.

Product Features:

Bearing race driver
Fits 382A race
All steel construction

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$594.99

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 2010 and down GM 9.25″ IFS
Uses Koyo bearings and races
Included are carrier 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.

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$431.99

Fits 1998 and up GM 9.5″
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.

Popular 2008 GMC Sierra 2500 HD Differentials Categories

Differential Oil

Rear Differential Cover Gaskets

Differential Open Unit and Components

Differential Covers

Differential Pinion Shaft Lock Bolts

Differential Bearings

Differential Axle Shafts

Differential Pinion Pilot Bearings

Differential Cover Bolts

Differential Carriers

Differential Bearing Kits

Front Differential Pinion Bearings

Differential Spider Gear Kits

Differential Rebuild Kits

Differential Carrier Shim Kits

Differential Pinion Seals

Differential Clutch Packs

Differential Ring and Pinions

Differential End Yokes

Differential Lock Assemblies

Rear Differential Pinion Bearings

Differential Spools

Differential Carrier Bearing Adjusters

Rear Housing Cover Gaskets

Differential Pinion Bearing Kits

Complete Differentials

Differential Ring Gear Bolts

Bearing Race Drivers

Differential Crush Sleeves

Differential Side Bearing Spacers

Differential Pinion Shims

Differential Pinion Shaft Nuts

Differential Gear Install Kits

Differential Cross Pins

Differential Housing O-Rings

Differential Side Gear Thrust Washers

Differential Pinion Gear Thrust Washers

Differential Drive Pinion Gear Bearing Retainer Bolts

Differential Ring and Pinion Kits

Limited Slip Differential Assemblies

Differential Spider and Pinion Gear Kits

Differential Bearing Adjuster Nut Lock Bolts

Axle Differential Bearing and Race Set

Most Popular Differential Bearings for 2008 GMC Sierra 2500 HDs

Enhance your 2008 GMC Sierra 2500 HD with one of the 5 Differential Bearings we have in stock, starting at just $10.99.

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$10.99

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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$18.49

Value-priced bearing meets all cataloged application requirements.

Product Features:

Brand may vary by location

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

from

$24.29

With advanced load-carrying capacity and compact design, tapered roller bearings are used in wheel bearings, transmissions, differentials, transfer cases and other miscellanous applications. FAG manufacturers over 100 million tapered roller bearings annually.

Product Features:

High-precision and High-quality components used in all KITs
Coverage of classic and new high-tech solutions for the best system coverage

from

$23.99

Product Features:

Cross pin bolt
Fits GM 9.5″ and 9.25″ IFS

Best-Selling 2008 GMC Sierra 2500 HD Rear Differential Cover Gaskets

Upgrade your Sierra 2500 HD with one of our 4 best-selling Rear Differential Cover Gaskets, earning an average 4.5 stars rating across 13 reviews.

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from

$8.29

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered for the sealing repair environment
Validated for fit, form and function
Unsurpassed quality you can trust

from

$44.99

11.5″ Chrysler & GM cover gasket.

Product Features:

Cover gasket
Fits GM and Chrysler 11.5″

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$13.99

14T cover gasket.

Product Features:

Cover gasket
Fits GM 10.5″ 14 bolt truck

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$3.99

Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:

All products are designed to meet or exceed OE quality, form, fit and funtion.

Top-Quality Differential Covers for 2008 GMC Sierra 2500 HDs

Choose a high-quality OEM or aftermarket Differential Cover for GMC Sierra 2500 HDs and enjoy top-notch performance from $40.99.

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$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

from

$46.99

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

from

$146.99

Product Features:

Fits GM and Chrysler 11.5″
Steel

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$389.99

Product Features:

Fits Chrysler and GM 11.5″
Finned aluminum

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$92.99

Product Features:

Fits GM 10.5″ 14 bolt truck
Steel

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$59.99

Chrome cover for GM 14T.

Product Features:

Fits GM 10.5″ 14 bolt truck
Chrome

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$40.99

DIFF COVER KIT

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$558.99

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 A356-T6 cast aluminum with reinforcing ribs for maximum strength. Mounting hardware is included for a hassle-free installation. An oil level sight glass and calibration plug set to the factory level prevents overfilling of the differential. A magnetic drain plug and a deep reach magnetic fill plug are provided for maximum protection. This cover is finished in black powder-coating with machined fins for a distinctive look. 4 Quart Gear Oil Capacity: This cover has about a 4 quart gear oil capacity at the factory fill level, factory cover holds about 3 quarts. Built-in External Fins: Built-in external fins transfer heat from the fluid to the outside air for maximum cooling. Magnetic Drain/Fill Plug: This system incorporates a magnetic drain and deep reach fill plug that captures loose particles for maximum rear-end protection. Oil Level Sight Glass: Large oil level sight glass with 1/8” NPT calibration plug set to the factory fluid level to eliminate overfilling. When it comes to engineering for power, performance, protection and value, aFe Power is the only choice.

Product Features:

Constructed of Durable A356 Die Cast Aluminum
Reinforcing Ribs and Black Powder coating w/Machined Fins
Magnetic Drain and Fill Plugs Capture Loose Particles
Large Oil Level Sight Glass w/ Calibration Plug

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$296.99

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 A356-T6 cast aluminum with reinforcing ribs for maximum strength. Mounting hardware is included for a hassle-free installation. A calibration plug set to the factory level prevents overfilling of the differential. A magnetic drain plug and a deep reach magnetic fill plug are provided for maximum protection. This cover has a raw finish with machined fins for a distinctive look. 4 Quart Gear Oil Capacity: This cover has about a 4 quart gear oil capacity at the factory fill level, factory cover holds about 3 quarts. Built-in External Fins: Built-in external fins transfer heat from the fluid to the outside air for maximum cooling. Magnetic Drain/Fill Plug: This system incorporates a magnetic drain and deep reach fill plug that captures loose particles for maximum rear-end protection. Oil Level calibration plug: A 1/8″ NPT calibration plug is set to the factory fluid level which eliminates accidental overfilling. When it comes to engineering for power, performance, protection and value, aFe Power is the only choice.

Product Features:

Constructed of Durable A356-T6 Cast Aluminum
Reinforcing Ribs w/ a Raw Finish and Machined Fins
Magnetic Drain and Fill Plugs Capture Loose Particles
Calibration Plug Set to Factory Fluid Level

Top Picks for 2008 GMC Sierra 2500 HD Differential Oil

Invest in one of our 6 durable Differential Oil for your 2008 GMC, knowing you’re getting trusted brands and expert craftsmanship.

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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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$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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$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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$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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$99.99

Redline Synthetic “Shock Proof” Oil. 3 Quarts.

Product Features:

Includes three quarts of Redline Shockproof oil

from

$137.99

Redline Synthetic “Shock Proof” Oil. 4 Quarts.

Product Features:

Includes four quarts of Redline Shockproof oil

Our Top-Rated Rear Housing Cover Gaskets for 2008 GMC Sierra 2500 HDs

Make a smart move for your 2008 GMC Sierra 2500 HD with our Rear Housing Cover Gasket for $14.99.

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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

Top-Rated Differential Brands For Your 2008 GMC Sierra 2500 HD

When it comes to finding the perfect Differential for your 2008 GMC Sierra 2500 HD, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 15 trusted brands. We carry the most popular Differential brands including FELPRO, National, and Dorman, and more, all known for their exceptional customer ratings (average brand rating of 4.6 stars) and competitive prices, as low as $8.29. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 2008 GMC Sierra 2500 HD, providing peace of mind with parts that meet or exceed OEM standards.

Popular FELPRO 2008 GMC Sierra 2500 HD Differentials

If you’re looking for a top-quality Differential for your 2008 GMC Sierra 2500 HD, Advance Auto Parts has exactly what you need with our selection of FELPRO Differentials. We have 2 FELPRO Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $8.29 and an average cost of $11.64, you’ll find the perfect Differential for your needs and budget. FELPRO Differentials for the 2008 GMC Sierra 2500 HD come highly rated, with over 15 customer reviews and an impressive average rating of 4.6 stars. Choosing a FELPRO Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

from $14.99

(2)

Axle Housing Cover Gasket Irregular Shaped 14 Bolt Hole Gasket

“fel pro is best gasket for my purposes”

from $8.29

(13)

Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket

“works good”

Top-Quality National 2008 GMC Sierra 2500 HD Differentials

For those in search of a high-quality Differential for their 2008 GMC Sierra 2500 HD, Advance Auto Parts offers a great selection of National Differentials. With 2 National 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 $10.99, with an average price of $28.49, giving you a range of options to suit your budget. Backed by over 11 customer ratings and an average rating of 4.3 stars, National Differentials provide both reliability and excellent performance. Choosing a National Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.

from $10.99

(6)

Bearing Race

“Fit perfectly. No difficulty replacing my old ones.”

from $45.99

(5)

Multi-Purpose Seal

“Fit good”

FAQs for 2008 GMC Sierra 2500 HD Differentials

What are the best-selling Differentials for 2008 GMC Sierra 2500 HDs?

Out of 258 Differentials that fit 2008 GMC Sierra 2500 HDs, the following parts are the top sellers:

DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart (12079201) – $14.49
Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart (12507273) – $18.99
Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket (5723531) – $8.29

What’s the price range for 2008 GMC Sierra 2500 HD Differentials?

The prices of Differentials for the 2008 GMC Sierra 2500 HD range from $2.99 up to $4,069.99 for the most premium parts.

What is the average price of a Differential for a 2008 GMC Sierra 2500 HD?

The average price for Differentials for the 2008 GMC Sierra 2500 HD is $442.80. 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 2500 HD model years?

Yes, we carry Differentials for 24 model years of GMC Sierra 2500 HDs between 2001 and 2026. The following model years are the most popular for Differential purchases: 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, and 2015.

What are the cheapest Differentials for my 2008 GMC Sierra 2500 HD?

The cheapest 2008 GMC Sierra 2500 HD Differentials we carry are:

Differential Crush Sleeve (20520169) – $2.99
Differential Cover Gasket (10282461) – $3.99
Crush Sleeve (10593146) – $3.99
Differential Pinion Yoke Washer (10282284) – $4.99
Differential Cover B (11777896) – $5.99

Does Advance Auto Parts sell Differentials for any other 2008 GMC models?

Yes. We stock Differentials for 20 other popular 2008 GMC models. Some of the most popular are 2008 Yukon Differentials, 2008 Sierra 1500 Differentials, 2008 Yukon XL 1500 Differentials, 2008 Yukon XL 2500 Differentials, and 2008 Savana 1500 Differentials.

What types of Differentials do you sell for my 2008 GMC Sierra 2500 HD?

As of 11/2/25, these are some of the most in-demand types of Differentials for a 2008 GMC Sierra 2500 HD:

Can I get help with 2008 GMC Sierra 2500 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 2500 HD Differentials?

Advance Auto Parts keeps returns simple. For new GMC Sierra 2500 HD Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

2008 GMC Sierra 2500 HD Differentials

Yukon Gear – Eaton-Type Positraction Carbon Clutch Kit With 14 Plates For GM 14T And 10.5" (Part No.16112)

Motive Gear – Differential Carrier Shim Kit (Part No.GM9.5SSK)

USA Standard Gear – Bearing Kit For ’11 & Up GM 9.25" IFS Front (Part No.58024)

Yukon Gear – Pinion Install Kit For 2011 & Up GM & Chrysler 11.5" Differential (Part No.13103)

Idemitsu – Type HP Automatic Transmission Fluid , 1 Quart (Part No.10107-042F)

ATP – DIFF COVER KIT (Part No.111104)

Yukon Gear – DiffrlPinSupportBolt (Part No.33582)

Spartan – Drive Axle Assembly; GM 2500 P/U Posi Axle (Part No.RAXP0220A)

National – Multi-Purpose Bearing (Part No.A-42)

Motive Gear – Differential Pinion Shim Kit (Part No.GM14SK)

National – Shaft Repair Sleeve (Part No.99157)

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

Yukon Gear – Right Hand Adjuster Lock For 9.25" GM IFS (Part No.33360)

Powertrax – Lock Right Locker (Part No.1950-LR)

Dorman – Help – Differential Shaft Lock Bolt (Part No.81048)

Yukon Gear – Grizzly Locker For GM & Chrysler 11.5" With 38 Spline Axles (Part No.28014)

Yukon Gear – Spool For GM & Chrysler 11.5", 30 Spline (Part No.32185)

Yukon Gear – 10.5" GM 14 Bolt Truck Pinion Nut (Part No.33148)

Yukon Gear – Positraction Internals For 9.5" GM With 33 Spline Axles (Part No.16057)

Felpro – Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket (Part No.RDS 55387)

Yukon Gear – 14T Side Gear Thrust Washer (Part No.33383)

USA Standard Gear – Ring & Pinion "Thick" Gear Set For 10.5" GM 14 Bolt Truck In A 5.38 Ratio (Part No.36188)

Yukon Gear – 14T Pinion Gear Thrust Washer (Part No.33384)

Yukon Gear – Dura Grip For GM & Chrysler 11.5", 30 Spline (Part No.26033)

Motive Gear – Differential Gear Install Kit (Part No.GM9.2IKFL)

Yukon Gear – Bearing Race Driver (Part No.56009)

USA Standard Gear – Master Overhaul Kit for the ’10 & Down GM 9.25" IFS Front Differential (Part No.37061)

USA Standard Gear – Master Overhaul Kit for ’97-’13 GM 9.5" Differential (Part No.37073)

National – Bearing Race (Part No.382A)

Driveworks – Tapered Cone Wheel Bearing Assembly (Part No.S-387-AS)

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

FAG US – Cone (Part No.KM86649)

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)

Felpro – Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket (Part No.RDS 55063)

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

Yukon Gear – GM 10.5′ 14 Bolt Truck Cover Gasket (Part No.23016)

Pro-King – Differential Cover Gasket (Part No.743B303)

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

Dorman – Differential Cover (Part No.697-703)

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

Yukon Gear – Finned Aluminum Cover For Dodge & GM 11.5" Aam Rear Axle (Part No.32346)

Yukon Gear – Steel Cover For GM 10.5" 14 Bolt Truck (Part No.32345)

Yukon Gear – Chrome Cover For 10.5" GM 14 Bolt Truck (Part No.32013)

ATP – DIFF COVER KIT (Part No.111104)

aFe POWER – Differential Cover (Part No.46-70372)

aFe POWER – Differential Cover (Part No.46-70370)

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

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

Valvoline – Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart (Part No.889785)

Yukon Gear – Redline Synthetic "Shock Proof" Oil With Positraction Additive – 4 Quarts (Part No.15005)

Yukon Gear – Redline Synthetic "Shock Proof" Oil – 3 Quarts (Part No.15000)

Yukon Gear – Redline Synthetic "Shock Proof" Oil – 4 Quarts (Part No.15004)

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