2003 GMC Sierra 1500 HD Differentials

Essential 2003 GMC Sierra 1500 HD Differentials

National – Shaft Repair Sleeve (Part No.99138)

Shaft Repair Sleeve

from

$27.49
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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Dorman – 4 Wheel Drive Oil Seal (Part No.600-606)

4 Wheel Drive Oil Seal

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$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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Yukon Gear – GM 9.5" Ring Gear Bolt (Part No.33047)

GM 9.5" Ring Gear Bolt

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$12.99
GM 9.5″ ring gear bolt. 12mm x 1.5.

Product Features:
  • Ring gear bolt for GM 9.2″
  • 12mm x 1.5
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Pro-King – Differential Bearing Cone (Part No.742G255)

Differential Bearing Cone

from

$19.79
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 – 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 – Left Hand Adjuster Lock Nut For 9.25" GM (Part No.33354)

Left Hand Adjuster Lock Nut For 9.25" GM

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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″
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Motive Gear – Differential Crush Sleeve (Part No.1234726)

Differential Crush Sleeve

from

$4.29
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 o
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Pro-King – Differential Pinion Yoke Washer (Part No.742A215)

Differential Pinion Yoke Washer

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.
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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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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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Yukon Gear – Pinion Nut (Part No.33152)

Pinion Nut

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$9.99
Pinion nut for GM 7.2″ IFS, 7.5″, 7.6″, 7.6″ IFS, 8.0″, 8.25″, 8.5″, 8.6″, 9.25″ IFS, 9.5″ & Oldsmobile Dropouts. 1 1/4″ socket, 7/8″ x 14 thread.

Product Features:
  • Pinion nut for GM 7.2″, 7.5″, 7.625″, 8.0″, 8.25″ IFS, 8.5″, 8.6″, 9.25″ IFS and 9.5″
  • 7/8″ x 14 thread
  • 1 1/4″ socket
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Yukon Gear – Axle For ’07 And Up 9.5" GM Axle, 34.02" (Part No.21586)

Axle For '07 And Up 9.5" GM Axle, 34.02"

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$299.99
2007 and up 9.5″ GM axle, 34.02″. axle shaft for ’07 & up GM truck with 9.5″ differential, 34.02″ long, 6 lug. Yukon 1541H alloy axles offer a strength increase over stock while retaining a low cost. Yukon 1541H alloy front axles come with a one year warranty against manufacturing defects.

Product Features:
  • 33 spline
  • 34.02″ long
  • Fits GM 9.5″ in 2007 and up truck
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Motive Gear – Differential Gear Install Kit (Part No.GM9.5IKL)

Differential Gear Install Kit

from

$79.99


Product Features:
  • MINI INSTALL KIT-GM9.5/CHRY9.25 FRT
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Felpro – Differential Cover Gasket (Part No.RDS 55387)

Differential Cover Gasket

from

$7.99
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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Valvoline – MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Quart (Part No.VV324)

MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Quart

from

$12.79
Product Features:
  • High-performance seal conditioners maintain and preserve the elasticity of seals to help prevent leaks
  • Long-life friction modifiers and premium base oils help improve smooth shifting, eliminate slippage and shudder, prevent clutch wear and improve drivability longer than conventional fluids
  • Enhanced cleaning additives help reduce varnish formation and keep the transmission running properly longer
  • Engineered with a unique blend of viscosity modifiers and base oils to provide better oil flow at low temperatures and greater film protection at higher temperatures
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National – Bearings (Part No.HM88510)

Bearings

from

$14.29
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
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Yukon Gear – Cross Pin Shaft For GM 9.5", Fits Standard & Dura Grip Or Eaton Posi Carrier (Part No.33205)

Cross Pin Shaft For GM 9.5", Fits Standard & Dura Grip Or Eaton Posi Carrier

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$32.99
Product Features:
  • Cross pin shaft
  • Fits GM 9.5″
  • Dura Grip positraction
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Motive Gear – Differential Pinion Seal (Part No.26064029)

Differential Pinion Seal

from

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

Differential Cover B

from

$7.99
Differential Cover B

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

Left Hand Carrier Bearing Adjuster For 9.25" GM IFS

from

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

Product Features:
  • Side adjuster
  • Fits 2010 and down GM 9.25″ IFS
  • Left hand side
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National – Bearings (Part No.A-42)

Bearings

from

$50.99
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
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Yukon Gear – Pinion Nut Washer (Part No.33167)

Pinion Nut Washer

from

$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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Pro-King – Differential Internal Nest Kit (Part No.742D717)

Differential Internal Nest Kit

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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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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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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Motive Gear – Differential Bearing Kit – Koyo (Part No.R10RL)

Differential Bearing Kit - Koyo

from

$99.99
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:
  • KIT-BRG & SEAL GM 8.5 10 BOLT – ’99 & UP LATER
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Yukon Gear – High Performance Ring & Pinion Gear Set For GM 9.25" IFS Reverse Rotation In A 4.11 Ratio (Part No.24498)

High Performance Ring & Pinion Gear Set For GM 9.25" IFS Reverse Rotation In A 4.11 Ratio

from

$454.99
Yukon Ring & Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of conditions. Whether it’s on the street, off-road, or at the track; Yukon ring & pinion sets deliver unrivaled performance & quality. Yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up. All Yukon ring & pinion sets come standard with a one-year warranty.

Product Features:
  • Fits GM 9.25″ front
  • 9.25″ ring gear
  • 30 spline pinion
  • 12 ring gear bolts
  • 4.11 ratio
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2003 GMC Sierra 1500 HD Differentials

Maybe you’re in the middle of a full rebuild of that 2003 GMC Sierra 1500 HD. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 188 different Differentials in our inventory ranging from $1.99 to $1,487.99. That means you can find the exact parts or products you need to keep that 2003 GMC Sierra 1500 HD running smoothly.

Differentials are only as good as their brand. We stock 14 different brands to make sure you have plenty of trusted parts to choose from for your 2003 GMC Sierra 1500 HD. Valvoline, Dorman, and Yukon Gear 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 HD, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 1,016 reviews in this category, some of the top rated parts include Rear Differential Cover with 4.8 stars and Multi Purpose Seal with 4.5 stars.

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

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

FAQs for 2003 GMC Sierra 1500 HD Differentials

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

Out of 188 Differentials for the 2003 GMC Sierra 1500 HD, the most popular in our inventory are:
Rear Differential Cover
from $51.99
(1)
Rear Differential Cover
Differential Covers
Differential Cover Gasket
from $7.99
(20)
Differential Cover Gasket
Rear Housing Cover Gaskets
3 Qt - Penzoil 80W90 Conventional Gear Oil
from $44.99
This product is not rated
3 Qt – Penzoil 80W90 Conventional Gear Oil
Differential Oil

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

Top-rated Differentials for your 2003 GMC Sierra 1500 HD based on customer reviews/ratings are:
Rear Differential Cover
from $55.99
(11)
Rear Differential Cover
“Good quality cover, nice coat of paint on it. Should outlast the truck.”
Multi Purpose Seal
from $34.99
(8)
Multi Purpose Seal
“Nicely made. Heavy duty-just like factory parts.”
Rear Axle Shaft, Left or Right
from $285.99
(4)
Rear Axle Shaft, Left or Right
“Perfect fit! Excellent quality.”