2003 GMC Sierra 2500 Differentials

Find your specific 2003 GMC Sierra 2500 original or aftermarket Differentials below. Order your parts online and have delivered to your home or pick up in-store at Advance Auto.

Essential 2003 GMC Sierra 2500 Differentials

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

$1110.00

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 10.5″ 14 bolt truck
4.10 ratio and down only
Clutch style positraction
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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$8.99

14T pinion gear Thrust washer.

Product Features:

Pinion gear thrust washer
Fits GM 10.5″ 14 bolt truck

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$5.99

DiffrlPinSupportBolt

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$44.99

11.5″ Chrysler & GM cover gasket.

Product Features:

Cover gasket
Fits GM and Chrysler 11.5″

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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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$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

from

$152.99

Motive Gear Differential Bearing Kits Include Front & Rear Pinion Bearing, Pinion Seal, Carrier Bearings, Pilot Bearing Where Applicable, Gear Marking Compound, Crush Sleeve, Pinion Nut, Brush, Thread Locking Compound And Cover Gasket Or Rtv

Product Features:

’97 & LATER GM 9.5 14 BOLT BRG KIT

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$9.86

Differential Cover G

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$12.99

10.5″ GM 14 bolt truck crush sleeve, 1989 & newer. Approx 0.920″ long.

Product Features:

Crush sleeve for 1989 and up GM 10.5″ 14 bolt truck
0.920″ tall

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$10.99

14T ring gear bolt 4.11 & down. 9/16″ x 18. 2.085″ overall length.

Product Features:

Ring gear bolt for GM 10.5″ 14 bolt truck
4.11 and down ratio
1/2″ x 18 thread
2.085″ overall length

from

$369.99

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 9.5″
9.50″ ring gear diameter
30 spline pinion
12 ring gear bolts
3.42 ratio

from

$221.99

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.

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$315.99

Yukon standard open spider gear kit for GM 10.5″ and 14T with 30 spline axles. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. All components come with a one year warranty against manufacturing defects.

Product Features:

Spider gear kit
Fits GM 10.5″ 14 bolt truck open differential
Includes two side gears, four pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.

from

$1989.99

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

$27.99

Product Features:

Brand may vary by location

from

$317.99

Yukon standard open spider gear kit for 9.5″ GM rear and ’06 and earlier GM 9.25″ IFS with 33 spline axles. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. All components come with a one year warranty against manufacturing defects.

Product Features:

Spider gear kit
Fits GM 9.5″ open differential
Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.

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$13.49

Product Features:

Brand may vary by location

from

$92.99

Product Features:

Fits GM 10.5″ 14 bolt truck
Steel

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$12.52

Differential Drain P

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$16.99

Value-priced bearing meets all cataloged application requirements.

Product Features:

Brand may vary by location

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

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$27.99

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

Product Features:

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

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$4.99

Product Features:

Side gear thrust washer for Dana Spicer 60, 70, 70U, 70HD and 80
Fits standard open differentials only

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$38.99

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.

from

$47.99

Eaton positraction shim kit for 9.5″ GM.

Product Features:

Shim kit
Fits GM 9.5″ Eaton positraction

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$26.99

Left hand adjuster lock nut for 9.25″ GM.

Product Features:

Side adjuster lock nut
Fits GM 9.25″

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 Spools

Differential Carrier Bearings

Differential Carrier Bearing Adjusters

Rear Housing Cover Gaskets

Differential Pinion Bearing Kits

Complete Differentials

Differential Drain Plugs

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 Side Gear Thrust Washers

Differential Pinion Gear Thrust Washers

Differential Drive Pinion Gear Bearing Retainer Bolts

Differential Pinion Gear Washers

Differential Ring and Pinion Kits

Limited Slip Differential Assemblies

Differential Spider and Pinion Gear Kits

Differential Lock Motors

Differential Bearing Adjuster Nut Lock Bolts

Maybe you’re in the middle of a full rebuild of that 2003 GMC Sierra 2500. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 306 different Differentials in our inventory ranging from $2.99 to $2,324.99. That means you can find the exact parts or products you need to keep that 2003 GMC Sierra 2500 running smoothly.

Differentials are only as good as their brand. We stock 17 different brands to make sure you have plenty of trusted parts to choose from for your 2003 GMC Sierra 2500. Valvoline, FELPRO, and Driveworks are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Differentials for your 2003 GMC Sierra 2500, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 401 reviews in this category, some of the top rated parts include Differential Cover Gasket with 4.3 stars and Differential Cover Gasket with 4.4 stars.

So if you’re in the market for aftermarket Differentials to keep your 2003 GMC Sierra 2500 rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Differentials Brands To Make Your 2003 GMC Sierra 2500 Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 2003 GMC Sierra 2500 demands trusted brand parts and products to keep it running. Many trusted brands of Differentials make up Advance Auto Parts’ inventory, and all are ready to help make your Sierra 2500 the best it can be. Be sure to browse some of our top Differentials brands and parts.

Popular Pro-King Differentials

We carry Pro-King parts in our stock across Differential Axle Shafts categories, plus more. For a 2003 GMC Sierra 2500, our most popular Pro-King Differentials include:

from $244.99

(1)

Rear Axle Shaft Kit

Differential Axle Shafts

Top 2003 GMC Sierra 2500 Differentials from Dorman

Dorman products are another trusted brand when it comes to Differentials for your 2003 GMC Sierra 2500. Popular Dorman parts include:

from $282.99

(255)

Ring and Pinion Bearing Installation Kit

Differential Bearing Kits

from $36.99

(15)

Rear Differential Cover

Differential Covers

from $55.99

(11)

Rear Differential Cover

Differential Covers

FAQs for 2003 GMC Sierra 2500 Differentials

What are the most purchased Differentials for the 2003 GMC Sierra 2500?

Out of 306 Differentials for the 2003 GMC Sierra 2500, the most popular in our inventory are:

from $14.49

(2)

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

Differential Oil

from $35.99

(17)

DEX/MERC Automatic Transmission Fluid, 1 Gallon

Differential Oil

from $13.99

(14)

Tapered Cone/Cup Wheel Bearing Set

Front Differential Pinion Bearings

What are the top-rated 2003 GMC Sierra 2500 Differentials?

Top-rated Differentials for your 2003 GMC Sierra 2500 based on customer reviews/ratings are:

from $7.99

(20)

Differential Cover Gasket

“Perfect fit”

from $6.79

(13)

Differential Cover Gasket

“I will only use Fel-Pro for major components”

from $34.99

(8)

Multi Purpose Seal

“Nicely made. Heavy duty-just like factory parts.”

2003 GMC Sierra 2500 Differentials

More 2003 GMC Sierra 2500 Differentials

Essential 2003 GMC Sierra 2500 Differentials

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

Yukon Gear – Dura Grip Positraction For 10.5" GM 14 Bolt Truck, 4.10 & Down (Part No.26030)

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

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

Yukon Gear – DiffrlPinSupportBolt (Part No.33582)

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

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

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

Motive Gear – Differential Bearing Kit – Koyo (Part No.R9.5GRL)

Felpro – Differential Cover G (Part No.J7018977707FEL)

Yukon Gear – 10.5" GM 14 Bolt Truck Crush Sleeve (Part No.33100)

Yukon Gear – 10.5" GM 14 Bolt Truck Ring Gear Bolt (Part No.33051)

USA Standard Gear – Ring & Pinion Gear Set For GM 9.5" In A 3.42 Ratio (Part No.36298)

Pro-King – Differential Internal Nest Kit (Part No.743B717)

Yukon Gear – Standard Open Spider Gear Kit For GM 10.5" And 14T With 30 Spline Axles (Part No.16044)

Spartan – Drive Axle Assembly; Chev 2500 P/U Axle (Part No.RAX2080A)

Driveworks – Wheel Bearing (Part No.S-R1581-TV)

Yukon Gear – Standard Open Spider Gear Kit For 33 Spline GM 9.25" IFS And GM 9.5" Axles (Part No.16060)

Driveworks – Tapered Roller Bearing (Part No.S-HM-803110)

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

MTC – Differential Drain P (Part No.J7065587755MTC)

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

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

Yukon Gear – Replacement Pinion Depth Shims For Dana 80 (Part No.55006)

Yukon Gear – Side Gear Thrust Washer For Dana 60, 70 & 80 (Part No.33532)

Motive Gear – Differential Pinion Seal (Part No.26064029)

Yukon Gear – Eaton Positraction Shim Kit For 9.5" GM (Part No.16059)

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

Popular 2003 GMC Sierra 2500 Differentials Categories