2003 GMC Sierra 1500 Differentials

Essential 2003 GMC Sierra 1500 Differentials

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

Adjuster Lock Bolt For Left Hand Case Half Of 7.2" And 9.25" GM IFS

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$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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Yukon Gear – Pinion Nut Washer (Part No.33167)

Pinion Nut Washer

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$14.99
Pinion nut washer for GM 7.2″ IFS, 7.5″, 7.6″, 7.6″ IFS, 8.5″, 8.6″ & 9.5″.

Product Features:
  • Pinion nut washer for GM 7.2″ IFS, 7.5″, 7.625″, 7.6″ IFS, 8.5″, 8.6″ and 9.5″.
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Yukon Gear – GM 9.25" IFS Side Adjuster, ’11 & Up (Part No.33358)

GM 9.25" IFS Side Adjuster, '11 & Up

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$115.99
9.25IFS GM 11 & up side bearing adjuster.

Product Features:
  • Side adjuster
  • Fits 2011 and up GM 9.25″ IFS
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MTC – Differential Drain P (Part No.J7065587755MTC)

Differential Drain P

from

$11.58
Differential Drain P

Yukon Gear – 8.6" GM Standard Open Side Gear Thrust Washer (Part No.33386)

8.6" GM Standard Open Side Gear Thrust Washer

from

$4.99
8.6″ GM standard Open side gear Thrust washer.

Product Features:
  • Side gear thrust washer
  • Fits GM 8.6″
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Yukon Gear – Differential Cover B (Part No.33572)

Differential Cover B

from

$7.99
Differential Cover B

Driveworks – Differential Pinion Seal (Part No.S-100712-V)

Differential Pinion Seal

from

$27.49
Product Features:
  • Brand may vary by location
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Yukon Gear – Positraction Internals For 9.5" GM With 33 Spline Axles (Part No.16057)

Positraction Internals For 9.5" GM With 33 Spline Axles

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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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Yukon Gear – O-Ring For Left Hand Carrier Bearing Adjuster For 9.25" GM IFS (Part No.33133)

O-Ring For Left Hand Carrier Bearing Adjuster For 9.25" GM IFS

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$15.99
O-ring for left hand carrier bearing adjuster for 9.25″ GM IFS.

Product Features:
  • Axle o-ring
  • Fits Chrysler 9.25″ IFS
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Dorman – Differential Yoke including Seal and Pinion Nut (Part No.697-500)

Differential Yoke including Seal and Pinion Nut

from

$139.99
Worn or damaged differential end yoke causing driveline vibrations? This direct replacement end yoke matches the original equipment part for a trustworthy repair and reliable performance.

Product Features:
  • Direct replacement – this differential end yoke matches the fit and construction of the original yoke
  • Excellent value – this replacement end yoke offers original equipment quality at a fraction of the price of dealer parts
  • Quality materials – this end yoke is machined from cast iron for strength and is precision machined for reliability
  • Validated fit – this differential end yoke has been tested to confirm accurate fit
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Yukon Gear – Bearing Install Kit For ’99 & Newer GM 8.25" IFS Differential (Part No.11104)

Bearing Install Kit For '99 & Newer GM 8.25" IFS Differential

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$383.99
Yukon Bearing installation kits are perfect for shops & builders who have shims on the shelf and are looking to save cost over a Master Overhaul kit. This kit uses Timken 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. Yukon 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 GM 8.25″ IFS
  • Included are carrier bearings and races, pinion bearings and races, pinion seal, crush sleeve , oil baffles and slingers , marking compound and brush.
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Spartan – Drive Axle Assembly; GM 1500 07-08 Axle GU6 (Part No.RAX2257B)

Drive Axle Assembly; GM 1500 07-08 Axle GU6

from

$1637.99
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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USA Standard Gear – 30 Spline Axle for GM 8.6 2007 & Up Chevy with ABS (Part No.35173)

30 Spline Axle for GM 8.6 2007 & Up Chevy with ABS

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$253.99
GM 8.6 2007 & UP CHEV w/ABS 30Spline 34.25″ ( ABS Ring Not Included) .

Product Features:
  • Fits 2007 and up GM half ton truck with four wheel drive
  • 30 spline
  • 34 1/4″ long
  • 6 lug
  • Fits ABS applications
  • Does not include ABS tone ring
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Pro-King – Differential Cover Plug (Part No.742G484)

Differential Cover Plug

from

$6.59
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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Yukon Gear – Dura Grip Positraction For GM 8.5" & 8.6" With 30 Spline Axles (Part No.26016)

Dura Grip Positraction For GM 8.5" & 8.6" With 30 Spline Axles

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$929.99
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. This unit has larger bearing journals for added strength & uses heavy-duty carrier bearings & races.

Product Features:
  • Fits GM 8.5″ and 8.6″ with 30 spline axles
  • 2.73 ratio and up only
  • 4-spring, 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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Yukon Gear – Ring Gear Bolt (Part No.33049)

Ring Gear Bolt

from

$6.99
Ring gear bolt for GM 7.5″, 7.6″, 7.6″ IRS, 8.0″, 8.25″ IFS, 8.5″, 8.6″ & 8.6″ IRS. 7/16″ x 20.

Product Features:
  • Ring gear bolt for GM 7.5″, 7.625″, 7.6″ IRS, 8.0″, 8.25″ IFS, 8.5″, 8.6″ and 8.6″ IRS
  • 7/16″ x 20
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Felpro – Differential Cover Gasket (Part No.RDS 55028-1)

Differential Cover Gasket

from

$9.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Unsurpassed quality you can trust
  • Validated for fit, form and function
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
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Yukon Gear – Set Up Bearing (Part No.56045)

Set Up Bearing

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$153.99
M802048 set-up bearing (one bearing). No return.

Product Features:
  • Set up bearing
  • Fits M802048 pinion bearing
  • Easily slips on and off pinion journal to allow for easier pinion depth adjustment
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USA Standard Gear – Ring & Pinion Gear Set For GM 8.5" In A 3.90 Ratio (Part No.36215)

Ring & Pinion Gear Set For GM 8.5" In A 3.90 Ratio

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$344.99
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 8.5″ and 8.6″
  • 8.50″ ring gear diameter
  • 30 spline pinion
  • 10 ring gear bolts
  • 3.90 ratio
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Yukon Gear – Differential Gasket (Part No.23030)

Differential Gasket

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$67.99
Differential Gasket

Yukon Gear – Yoke For GM 8.25" IFS And 9.25" IFS (Mech 3R) (Part No.41078)

Yoke For GM 8.25" IFS And 9.25" IFS (Mech 3R)

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$244.99
Yukon yoke for GM 8.25″ IFS and 9.25″ IFS (mech 3R). 2.556″ snap ring span, 1.125″ cap diameter. Inside snap ring. This yoke uses inside snap rings. All Yukon yokes come with a one year warranty against manufacturing defects.

Product Features:
  • Fits GM 8.25″ IFS and 9.25″ IFS
  • 30 spline
  • Mechanics 3R u-joint size
  • Inside snap ring design
  • 2.556″ snap ring span
  • 1.125″ cap diameter
  • Strap style
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Yukon Gear – Super Carrier Shim Kit For GM 9.5" (Part No.55003)

Super Carrier Shim Kit For GM 9.5"

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$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
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Motive Gear – Differential Spool (Part No.FS10-30)

Differential Spool

from

$187.99


Product Features:
  • FULL SPOOL GM 8.5 30 SPL ST MUST USE 2-LM102911 & 2-LM102949
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Dorman – 4 Wheel Drive Oil Seal (Part No.600-606)

4 Wheel Drive Oil Seal

from

$34.99
This axle differential seal is designed to match the fit and function of the original seal on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this axle differential seal is designed to match the fit and function of the original seal on specified vehicles
  • Restores functionality – this seal is made to fit and fully restore part functionality after the original seal fails
  • 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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ACDelco – Differential Bearing (Part No.J7060723477ACD)

Differential Bearing

from

$69.63
Differential Bearing

Dorman – Differential Positive Unit Assembly (Part No.697-909)

Differential Positive Unit Assembly

from

$819.99
Hard use and poor lubrication can wear out a limited-slip differential. Restore original performance with this replacement differential carrier assembly that includes all-new spider gears, differential pins, clutches and carrier housing.

Product Features:
  • Direct replacement – this 30 spline limited-slip differential carrier fits in place of this vehicle’s original equipment carrier
  • 100% new – this differential carrier uses all-new components, including spider gears, diff pin, pre-load spring pack and clutch pack
  • Ready to install – this differential carrier is shipped pre-assembled and ready to install
  • Ideal upgrade – can be used to upgrade from open differential to limited-slip in an existing differential
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Pro-King – Differential Cross Shaft (Part No.742G673)

Differential Cross Shaft

from

$28.49
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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Popular 2003 GMC Sierra 1500 Differentials Categories

2003 GMC Sierra 1500 Differentials

Maybe you’re in the middle of a full rebuild of that 2003 GMC Sierra 1500. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 367 different Differentials in our inventory ranging from $1.99 to $2,369.99. That means you can find the exact parts or products you need to keep that 2003 GMC Sierra 1500 running smoothly.

Differentials are only as good as their brand. We stock 19 different brands to make sure you have plenty of trusted parts to choose from for your 2003 GMC Sierra 1500. Valvoline, Pennzoil, and Felpro 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 1500, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 17,514 reviews in this category, some of the top rated parts include Differential Ring And Pinion with 4.2 stars and Differential Cover Gasket with 4.3 stars.

So if you’re in the market for aftermarket Differentials to keep your 2003 GMC Sierra 1500 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 1500 Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 2003 GMC Sierra 1500 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 1500 the best it can be. Be sure to browse some of our top Differentials brands and parts.

Popular Pennzoil Differentials

We carry Pennzoil parts in our stock across Differential Oil categories, plus more. For a 2003 GMC Sierra 1500, our most popular Pennzoil Differentials include:
Synchromesh Manual Transmission Fluid: Low-Temperature
from $11.99
(104)
Synchromesh Manual Transmission Fluid: Low-Temperature
Differential Oil

FAQs for 2003 GMC Sierra 1500 Differentials

What are the most purchased Differentials for the 2003 GMC Sierra 1500?

Out of 367 Differentials for the 2003 GMC Sierra 1500, the most popular in our inventory are:
Differential Cover Gasket
from $9.99
(195)
Differential Cover Gasket
Rear Housing Cover Gaskets
Rear Differential Cover
from $51.99
(1)
Rear Differential Cover
Differential Covers
Tapered Cone/Cup Wheel Bearing Set
from $13.99
(14)
Tapered Cone/Cup Wheel Bearing Set
Differential Bearings

What are the top-rated 2003 GMC Sierra 1500 Differentials?

Top-rated Differentials for your 2003 GMC Sierra 1500 based on customer reviews/ratings are:
Differential Ring And Pinion
from $342.99
(23)
Differential Ring And Pinion
“So far so good.”
Differential Cover Gasket
from $7.99
(20)
Differential Cover Gasket
“Works”
Differential Carrier Gear Kit
from $231.99
(16)
Differential Carrier Gear Kit
“First set of gears were not complete. But staff reordered them, had them next day. Thanks”