2003 GMC Sierra 2500 Differentials

Keep Your 2003 GMC Sierra 2500 in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 2003 GMC Sierra 2500 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Covers, Differential Oil, and Rear Housing Cover Gaskets. 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, National, and FELPRO. For example, Dorman Differentials start at just $46.99 with an average 4.2 star rating. National and FELPRO offer similar pricing and quality, backed by strong customer feedback. With over 829 reviews and a solid 4 star average, you can shop with confidence knowing other GMC Sierra 2500 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2003 GMC Sierra 2500 Differential at Advance Auto Parts is around $411.73, with a range that starts at $2.99 and goes up to $2,969.99. With 312 options in stock from 16 trusted brands, finding the right fit is easy. Popular picks like DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart, Tapered Cone/Cup Wheel Bearing Set, 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 2003 GMC Sierra 2500 in peak condition, inside and out.

Looking for the perfect Differential for your 2003 GMC Sierra 2500? 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. Whether you’re driving a 2003 model or another popular model year like 1999, 2002, and 2004, 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 2003 GMC Sierra 2500 Differentials

from

$28.99

9.5 Standard Open Pinion gear Thrust Washer.

Product Features:

Pinion gear thrust washer
Fits GM 9.5″

from

$287.99

Yukon mini spool for GM 10.5″ 14 bolt truck.

Product Features:

Fits 10.5″ GM 14 bolt truck
Provides 100% traction to both wheels at all times
Installs into standard open carrier case

from

$31.99

11.5″ GM standard Open side gear Thrust washer.

Product Features:

Side gear thrust washer
Fits GM 11.5″

from

$319.99

Yukon yoke for GM 11.5″ with a 1410 U/joint size. 4.188″ snap ring span, 1.188″ cap diameter. Outside snap ring. All Yukon yokes come with a one year warranty against manufacturing defects.

Product Features:

Fits GM 11.5″
30 spline
1410 u-joint size
Outside snap ring design
4.188″ snap ring span
1.188″ cap diameter
Strap style

from

$59.99

Chrome cover for GM 14T.

Product Features:

Fits GM 10.5″ 14 bolt truck
Chrome

from

$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

from

$251.99

Differential Carrier

from

$29.99

9.5″ GM differential carrier Supershim kit.

Product Features:

Super carrier shim kit for GM 9.5″
Interlocking design makes installation much easier

from

$26.99

Left hand adjuster lock nut for 9.25″ GM.

Product Features:

Side adjuster lock nut
Fits GM 9.25″

from

$13.99

9.5″ GM cover gasket.

Product Features:

Cover gasket
Fits GM 9.5″

from

$32.99

Adjuster lock bolt for left hand case half of 7.2″ and 9.25″ GM IFS.

Product Features:

Side adjuster lock bolt
Fits GM 7.2″ IFS and 9.25″ IFS

from

$405.99

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 1998 and up GM 10.5″ 14 bolt truck
Uses Koyo bearings and races
Included are carrier bearings and races, pinion bearings and races, pilot bearing, pinion seal, complete shim kit, pinion nut, crush sleeve, thread locker, marking compound with brush and gasket.

from

$79.99

Product Features:

MINI INSTALL KIT-GM9.5/CHRY9.25 FRT

from

$8.99

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.

from

$102.99

Axle shaft damaged or bearings worn out: This axle shaft directly replaces the original equipment on certain vehicles, complete with all necessary application-specific installation components.

Product Features:

Product Features:

Direct replacement – this axle shaft replaces the original equipment on specific vehicle years, makes and models
Complete kit – each shaft includes critical installation hardware and components needed for specific vehicle applications
Durable construction – designed to rigorous standards and tested to ensure performance
Trustworthy solution – backed by team of engineers and quality control specialists in the United States

from

$314.99

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 1998 and up GM 10.5″ 14 bolt truck
Uses Koyo bearings and races
Included are carrier bearings and races, pinion bearings and races, pilot bearing, pinion seal, pinion nut, crush sleeve, marking compound and brush.

from

$729.99

Product Features:

Standard open carrier case
Fits GM 10.5″ 14 bolt truck
4.10 and down ratio only
Does not include spider gears

from

$2299.99

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

from

$26.99

Pinion seal for GM 9.25″ IFS.Yukon Mighty seal.

Product Features:

Pinion seal
Fits GM 9.25″ IFS

from

$33.99

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

Product Features:

PREMIUM MATERIALS — Precision manufactured using premium-grade steel for outstanding durability and performance
STRONG AND DURABLE — Controlled heat treatment process for strength and durability
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

$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

from

$7.99

Differential Cover B

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.

from

$13.99

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.

from

$439.99

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 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.

from

$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!

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″

Popular 2003 GMC Sierra 2500 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 Bearings

Differential Carrier Bearing Adjusters

Rear Housing Cover Gaskets

Differential Pinion Bearing Kits

Complete Differentials

Differential Ring Gear Bolts

Differential Carrier Bearing Shims

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 Covers for 2003 GMC Sierra 2500s

Enhance your 2003 GMC Sierra 2500 with one of the 10 Differential Covers we have in stock, starting at just $40.99.

show more show less

from

$63.99

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

$89.99

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

$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

$93.99

Steel cover for GM 9.5″ Threaded for fill plug, fill plug not included.

Product Features:

Fits GM 9.5″
Steel

from

$146.99

Product Features:

Fits GM and Chrysler 11.5″
Steel

from

$389.99

Product Features:

Fits Chrysler and GM 11.5″
Finned aluminum

from

$92.99

Product Features:

Fits GM 10.5″ 14 bolt truck
Steel

from

$72.99

Product Features:

Fits GM 9.5″
Chrome

from

$59.99

Chrome cover for GM 14T.

Product Features:

Fits GM 10.5″ 14 bolt truck
Chrome

from

$40.99

DIFF COVER KIT

Best-Selling 2003 GMC Sierra 2500 Differential Oil

Upgrade your Sierra 2500 with one of our 7 best-selling Differential Oil, earning an average 5 stars rating across 450 reviews.

show more show less

from

$19.99

Mobil 1 Synthetic Gear Lubricant LS 75W-90 is a supreme, multi-purpose automotive gear lubricant that helps to provide exceptional thermal stability and resistance to high temperature oxidation, extending gear life due to minimal deposits. Helps to deliver outstanding protection against low speed/high torque wear with the capability to handle severe driving conditions while delivering smooth efficient performance. Mobil 1 Synthetic Gear Lubricant LS provides exceptional shear stability, corrosion protection, and enhanced frictional properties. Compared to conventional hypoid gear lubricants, Mobil 1 LS 75W-90 performs exceptionally over a wide range of temperatures to reduce wear at start up. Mobil 1 gear lube helps to minimize leakage and reduce contamination while providing good resistance to foaming to maintain film strength for reliable lubrication. Meets or exceeds the requirements of the following industry specifications: API GL-5.

Product Features:

Mobil 1 LS synthetic automotive gear lubricant exceeds the highest level of performance requirements of modern passenger vehicles
Helps to provide exceptional thermal stability and resistance to high temperature oxidation and extend gear life due to minimal deposits
Delivers outstanding protection against low speed/high torque wear, handling severe driving conditions with smooth, efficient performance
Compared to conventional hypoid gear lubricants, performs exceptionally over a wide range of temperatures to reduce wear at start up
Provides exceptional shear stability, corrosion protection, and enhanced frictional properties
Manufacturer Part Number: 104361

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

from

$11.99

Valvoline DEX/MERC ATF is a high-quality transmission fluid formulated to meet the challenging demands of many automatic transmissions. Its responsive low-temperature fluidity is beneficial in both electronic and hydraulic controlled transmissions and transaxles. Recommended for use in the following applications: MERCON*, DEXRON*-III, Ford M2C138-CJ and M2C166-H, Allison C-4 and TES-389, and Caterpillar TO-2.

Product Features:

Formulated with premium 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

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

from

$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

from

$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

Top-Quality Rear Housing Cover Gaskets for 2003 GMC Sierra 2500s

Choose a high-quality OEM or aftermarket Rear Housing Cover Gasket for GMC Sierra 2500s and enjoy top-notch performance from $8.99.

show more show less

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

from

$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

Top Picks for 2003 GMC Sierra 2500 Differential Bearings

Invest in one of our 11 durable Differential Bearings for your 2003 GMC, knowing you’re getting trusted brands and expert craftsmanship.

show more show less

from

$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

from

$26.99

Value-priced bearing meets all cataloged application requirements.

Product Features:

Brand may vary by location

from

$7.79

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

from

$18.49

Value-priced bearing meets all cataloged application requirements.

Product Features:

Brand may vary by location

from

$19.99

Manufactured with premium-grade steel, National taper bearing cones feature crowned raceways and rollers to ensure even load distribution.

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

$8.49

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

from

$66.99

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

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

from

$9.99

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

Top-Rated Rear Differential Cover Gaskets for 2003 GMC Sierra 2500s

Make a smart move for your 2003 GMC Sierra 2500 with products all priced from $3.99 to $44.99.

show more show less

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″

from

$13.99

14T cover gasket.

Product Features:

Cover gasket
Fits GM 10.5″ 14 bolt truck

from

$13.99

9.5″ GM cover gasket.

Product Features:

Cover gasket
Fits GM 9.5″

from

$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-Rated Differential Brands For Your 2003 GMC Sierra 2500

When it comes to finding the perfect Differential for your 2003 GMC Sierra 2500, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 16 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 2003 GMC Sierra 2500, providing peace of mind with parts that meet or exceed OEM standards.

Popular FELPRO 2003 GMC Sierra 2500 Differentials

If you’re looking for a top-quality Differential for your 2003 GMC Sierra 2500, Advance Auto Parts has exactly what you need with our selection of FELPRO Differentials. We have 3 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 $10.76, you’ll find the perfect Differential for your needs and budget. FELPRO Differentials for the 2003 GMC Sierra 2500 come highly rated, with over 35 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 $8.99

(20)

Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket

“Perfect fit”

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 2003 GMC Sierra 2500 Differentials

For those in search of a high-quality Differential for their 2003 GMC Sierra 2500, Advance Auto Parts offers a great selection of National Differentials. With 3 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 $34.32, giving you a range of options to suit your budget. Backed by over 27 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 $53.99

(20)

Wheel Bearing: Direct Fit, 1 Piece

“Very good quality part”

from $37.99

(1)

Shaft Repair Sleeve

“Very delicate piece, but came shipped quite safely and not damaged. High quality.”

FAQs for 2003 GMC Sierra 2500 Differentials

What are the best-selling Differentials for 2003 GMC Sierra 2500s?

Out of 312 Differentials that fit 2003 GMC Sierra 2500s, the following parts are the top sellers:

DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart (12079139) – $11.99
Tapered Cone/Cup Wheel Bearing Set (5050723) – $26.99
Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket (5723531) – $8.29

What’s the price range for 2003 GMC Sierra 2500 Differentials?

The prices of Differentials for the 2003 GMC Sierra 2500 range from $2.99 up to $2,969.99 for the most premium parts.

What is the average price of a Differential for a 2003 GMC Sierra 2500?

The average price for Differentials for the 2003 GMC Sierra 2500 is $411.73. 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 model years?

Yes, we carry Differentials for 2 model years of GMC Sierra 2500s between 1999 and 2004. The following model years are the most popular for Differential purchases: 2004, 2002, and 1999.

What are the cheapest Differentials for my 2003 GMC Sierra 2500?

The cheapest 2003 GMC Sierra 2500 Differentials we carry are:

Differential Crush Sleeve (20520169) – $2.99
Differential Cover Gasket (10282461) – $3.99
Crush Sleeve (10593146) – $3.99
Side Gear Thrust Washer For Dana 60, 70 & 80 (11642996) – $4.99
Differential Pinion Yoke Washer (10282284) – $4.99

Does Advance Auto Parts sell Differentials for any other 2003 GMC models?

Yes. We stock Differentials for 19 other popular 2003 GMC models. Some of the most popular are 2003 Yukon Differentials, 2003 Sierra 1500 Differentials, 2003 Yukon XL 1500 Differentials, 2003 Sierra 2500 HD Differentials, and 2003 Yukon XL 2500 Differentials.

What types of Differentials do you sell for my 2003 GMC Sierra 2500?

As of 11/2/25, these are some of the most in-demand types of Differentials for a 2003 GMC Sierra 2500:

Can I get help with 2003 GMC Sierra 2500 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 Differentials?

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

2003 GMC Sierra 2500 Differentials

Yukon Gear – 9.5 Standard Open Pinion Gear Thrust Washer (Part No.33374)

Yukon Gear – Mini Spool For GM 10.5" 14 Bolt Truck (Part No.32301)

Yukon Gear – 11.5" GM Standard Open Side Gear Thrust Washer (Part No.33387)

Yukon Gear – Yoke For GM 11.5", 1410 U/Joint Size With Balancer (Part No.41072)

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

National – Bearing Race (Part No.382A)

Yukon Gear – Differential Carrier (Part No.57015)

Yukon Gear – Super Carrier Shim Kit For GM 9.5" (Part No.55003)

Yukon Gear – Left Hand Adjuster Lock Nut For 9.25" GM (Part No.33354)

Yukon Gear – 9.5" GM Cover Gasket (Part No.23023)

Yukon Gear – Adjuster Lock Bolt For Left Hand Case Half Of 7.2" And 9.25" GM IFS (Part No.33244)

USA Standard Gear – Master Overhaul Kit for the ’98 and Newer GM 10.5" 14T Differential (Part No.37046)

Motive Gear – Differential Gear Install Kit (Part No.GM9.5IKL)

Pro-King – Differential Crush Sleeve (Part No.745A034)

Dorman – Rear Axle Shaft, Left Or Right (Part No.630-145A)

USA Standard Gear – Bearing Kit For ’98 & Up 10.5" GM 14 Bolt Truck (Part No.58010)

Yukon Gear – Standard Open Carrier Case, GM 10.5" 14 Bolt Truck, 4.10 & Down (Part No.20100)

Spartan – Drive Axle Assembly; GM 2500/3500 Truck Posi (Part No.RAXP2080A)

Yukon Gear – Pinion Seal For GM 9.25" IFS (Part No.30153)

National – Multi-Purpose Bearing (Part No.R-1581-TV)

National – Bearing Race (Part No.HM88610)

Yukon Gear – Differential Cover B (Part No.33572)

USA Standard Gear – Spider Gear Kit For GM 11.5" (Part No.39020)

Pro-King – Differential Pinion Shim Kit (Part No.743B200)

Yukon Gear – Pinion Install Kit For 2010 & Down GM & Chrysler 11.5" Differential (Part No.13055)

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

Yukon Gear – Standard Open Cross Pin Bolt Lock Ring For 11.5" GM (Part No.33408)

Dorman – Differential Cover (Part No.697-711)

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

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

Yukon Gear – Steel Cover For GM 9.5", Threaded For Fill Plug, Plug Not Included (Part No.32333)

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 9.5" GM (Part No.32018)

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

ATP – DIFF COVER KIT (Part No.111104)

Mobil 1 – 75W-90 Full Synthetic Gear Lubricant, Extends Gear Life, 1 Quart (Part No.26101)

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

Valvoline – DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart (Part No.798153)

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)

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

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

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

National – Bearing Race (Part No.382A)

Driveworks – Tapered Cone/Cup Wheel Bearing Set (Part No.S-A-35)

National – Bearing Race (Part No.LM102910)

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

National – Tapered Roller Bearing Cone (Part No.LM501349)

National – Bearing Race (Part No.LM501310)

National – Multi-Purpose Bearing (Part No.A-50)

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)

FAG US – Cup (Part No.LM501310)

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)

Yukon Gear – 9.5" GM Cover Gasket (Part No.23023)

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