2003 Ford Mustang Differentials

Please Select your Vehicle to See Exact Fit Parts

Keep Your 2003 Ford Mustang in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 2003 Ford Mustang looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Rear Differential Cover Gaskets, 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 Motive Gear, Valvoline, and National. For example, Motive Gear Differentials start at just $7.99 with an average 4.0 star rating. Valvoline and National offer similar pricing and quality, backed by strong customer feedback. With over 3,298 reviews and a solid 4 star average, you can shop with confidence knowing other Ford Mustang owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2003 Ford Mustang Differential at Advance Auto Parts is around $309.73, with a range that starts at $1.29 and goes up to $2,064.99. With 232 options in stock from 19 trusted brands, finding the right fit is easy. Popular picks like Axle Housing Cover Gasket Rectangular Shaped, 10 Bolt Hole Gasket, MaxGear SAE 75W90 High Performance Gear Oil w/Friction Modifier Additive, 1 QT, and Multi-Purpose Bearing start at just $15.99 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 Drive Shafts and Axles and Universal Joints. At Advance Auto Parts, we’re here to help you keep your 2003 Ford Mustang in peak condition, inside and out.

Looking for the perfect Differential for your 2003 Ford Mustang? 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 Ford Mustang. Whether you’re driving a 2003 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 2003 Ford Mustang Differentials

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$21.79

Our wheel seals are engineered using only the highest-quality materials to meet vehicle manufacturer specificatons. We work with suppliers to design seals that meet FAG’s quality standards. Seals are designed to protect wheel end components from contamination – such as dirt, dust, and moisture – and prevent the loss of grease over the life of the bearing. The specifications for wheel seals are very demanding, and the type required depends on the specific application, position and vehicle class.

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

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$5.99

Ford 8″ & 9″ standard Open, AG, & Detroit locker ring gear bolt. 7/16″ head, .925″ long.

Product Features:

Ring gear bolt for Ford 8″ and 9″
For use with standard open carrier, Auburn Gear limited slip and Detroit Locker
7/16″ head
.925″ long

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$134.99

Yukon Carrier installation kits are great, low cost kit for carrier changes such as Positraction or locker upgrades. Carrier installation kit for Ford 8.8″ differential. This kit contains carrier bearings, races and shims.

Product Features:

Fits Ford 8.8″
Includes carrier bearings and races and “super” carrier shim kit

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$64.99

Richmond Gear is the leading manufacturer of professional quality, high-performance drivetrain products. Our complete line of products ranges from high performance ring-and-pinion sets for serious street and racing applications to torque-hungry manual transmissions and components. Richmond Gear products have been winners both at the Daytona 500 and U.S. Nationals for decades. WINNERS RUN RICHMOND!

Product Features:

For over 80-years, the Richmond Double-Diamond logo has represented some of the highest quality gears in the racing industry. Winners Run Richmond!
The superior quality of Richmond gearsets is a result of outstanding design, world class manufacturing and an extensive testing process that is performed on all products.
Richmond performance gearsets have been winners for decades at: NHRA, NMRA, NMCA, Daytona 500, WISSOTA and U.S. Nationals.
Richmond Gear is a leading manufacturer of high performance ring and pinion gearsets and drivetrain components, backed by a two year warranty.
Engineered to perform faster and be more reliable, Richmond performance drivetrain products are the result of a continuous research and development program combined with state-of-the-art manufacturing capabilities.

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$98.99

Product Features:

MINI SPOOL 8.8 FORD 28SPL

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$16.99

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

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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$44.49

All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of our products undergo rigid quality control processes to insure proper fit, performance and longevity. Motive Gear products can be found in the winners circle at NHRA, IHRA, NMRA, NMCA, SODA, SCORE, BITD, Ultra-4 and NASCAR events because we offer unmatched selection and quality demanded by racers and their crew chiefs – the same quality and selection demanded by DIY customers and top mechanics. With four warehouses strategically located across North America, most Motive Gear orders arrive within 2-4 days. Win with Motive Gear!

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$184.99

Product Features:

FRD 10BLT 9.0 R/P 5.67A

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$184.99

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, 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 Ford 7.5″
Included are pinion bearings and races, pinion seal, pinion nut, crush sleeve, complete pinion shim kit, and marking compound with brush.

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$41.99

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

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$25.99

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

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$10.99

Product Features:

Trac Loc spring plate for Ford 8″ and 9″

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$119.99

8.8″ FORD 09 & DWN PINION KIT .

Product Features:

Fits 2009 and down Ford 8.8″
Uses Koyo bearings and races
Included are pinion bearings and races, pinion seal, pinion nut, crush sleeve, marking compound and brush.

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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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$239.99

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

Product Features:

Meets or exceeds OE specifications

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$6.99

from

$46.99

Shim kit for 9″ Ford TracLoc clutch, (8″ also) positraction.

Product Features:

Shim kit
Fits Ford 8″ and 9″ Trac Loc

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$59.99

Mini Spool 8″ and 9″ for Ford with 28 spline axles. Cross is bored for three cross pins. Mini spools are a low-cost traction option for vehicles looking for full-time lockup. The mini spool installs into a standard open carrier and give 100% power to both tires at all times. These units are not recommended for street-driven vehicles. We recommend full spools for vehicles with large tires or high horsepower. These units come with a one year warranty against manufacturing defects.

Product Features:

Fits Ford 9″ with 28 spline axles
Installs into a standard open carrier case
Provides 100% traction to both wheels at all times
Not recommended for street driven vehicles

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$214.99

Yukon standard open spider gear kit for 7.5″ Ford with 28 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
Fit Ford 7.5″ open differential
Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.

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$22.79

Product Features:

FORD 9″ SOLID SPACER KIT

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$209.99

Yukon forged yoke for Ford 9″ with 28 spline pinion and a 1350 U/joint size (stronger than billet). 3.625″ 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 Ford 9″
28 spline
1350 u-joint size
3.625″ snap ring span
1.188″ cap diameter
Outside snap ring design
U-bolt style

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$6.99

Side gear thrust washer (0.750″ shaft) for 8.8″ Ford.

Product Features:

Side gear thrust washer for Ford 8.8″
0.750″ diameter cross pin shaft applications only

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$883.99

The Yukon carrier bearing Puller works with an impact gun to quickly and safely remove carrier bearings without damaging them. This unit comes with a handy bench top stand and works with up to one ton applications including Dana 70HD, Dana 80, 10.25″ & 10.5″ Ford, or GM & Chrysler 11.5″ differentials.

Product Features:

Carrier bearing puller
Works with an impact gun to safely and easliy remove carrrier bearings

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$834.99

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.

Product Features:

Fits Ford 8.8″ with 28 spline axles
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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$551.99

For vehicles that are driven daily, the Powertrax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Powertrax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. 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!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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$441.99

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!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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$8.99

Pinion gear thrust washer (0.750″ shaft) for 8.8″ Ford.

Product Features:

Pinion gear thrust washer
Fits Ford 8.8″
0.750″ I.D.

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$4.99

Pinion gear thrust washer for 8″ and 9″ Ford, Model 20, and 7.25″ Chrysler.

Product Features:

Pinion gear thrust washer for Ford 8″, Ford 9″ and Chrysler 7.25″

Popular 2003 Ford Mustang Differentials Categories

Differential Oil

Differential Pinion Yokes

Rear Differential Cover Gaskets

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 Disc Kits

Differential Clutch Packs

Differential Mini Spools

Differential Ring and Pinions

Differential End Yokes

Differential Lock Assemblies

Differential Spools

Differential Carrier Bearings

Differential Lock Springs

Rear Housing Cover Gaskets

Differential Pinion Bearing Kits

Complete Differentials

Differential Ring Gear Bolts

Bearing Race Drivers

Differential Pinion Shafts

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 Oil Deflectors

Differential Ring and Pinion Kits

Limited Slip Differential Assemblies

Differential Spider and Pinion Gear Kits

Differential Pinion Bearing Spacers

Differential Bolts

Most Popular Rear Differential Cover Gaskets for 2003 Ford Mustangs

Enhance your 2003 Ford Mustang with one of the 5 Rear Differential Cover Gaskets we have in stock, starting at just $4.99.

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$15.99

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

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$24.29

Mr. Gasket Axle Housing/Differential Cover or Rear End Gaskets are manufactured from a .047 inch thick cellulose/nitrile composite gasket material for excellent sealing and durability. They are precision die-cut for an excellent fit.

Product Features:

.047″ thick cellulose/nitrile composite gasket material
Precision die cut
Reusable

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$12.99

8.8″ Ford cover gasket.

Product Features:

Cover gasket
Fits Ford 8.8″

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$9.99

7.5″ Ford cover gasket.

Product Features:

Cover gasket
Fits Ford 7.5″

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$4.99

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

Product Features:

Meets or exceeds OE specifications

Best-Selling 2003 Ford Mustang Differential Oil

Upgrade your Mustang with one of our 9 best-selling Differential Oil, earning an average 5 stars rating across 755 reviews.

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$35.99

Valvoline MaxLife Multi-Vehicle ATF is a full-synthetic formulation with advanced additives to prevent the major causes of transmission breakdown and help extend transmission life. Developed to help prevent leaks, maximize transmission performance, reduce transmission wear, and maintain smooth shifting longer than conventional fluids. It is suitable for use in a broad range of ATF applications including most Ford, GM, Toyota, Honda, Nissan, Hyundai, BMW, Mercedes, Volvo, VW & Audi. Recommended for use in the following applications: GM DEXRON-II, DEXRON-III, DEXRON-VI, Ford MERCON LV, Toyota/Lexus Type T, T-II, T-IV, WS, Honda/Acura, ATF-Z1, Nissan/Infiniti Matic-D, Matic-J, Matric-K, Matic-S, Hyundai/Kia SP-II, SP-III, SP-IV, SPH-IV, BMW 7045E, ETL 8072B, LA2634, LT71141, Allison C-4, Mercedes Benz NAG-1, Volvo 1161521, 1161540, 97340, 1273.41, and VW/Audi G-052-025-A2, G-052-162-A1. For CVT applications Valvoline recommends Valvoline Full Synthetic CVT Fluid.

Product Features:

Formulated with full-synthetic base oils and long life friction modifiers to help improve smooth shifting, eliminate slippage and shudder, prevent clutch wear and improve drivability longer than conventional fluids
High-performance seal conditioners maintain and preserve the elasticity of seals to help prevent leaks in high mileage transmissions
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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$12.99

Valvoline High Performance Gear Oil is an extreme pressure gear lubricant formulated with quality base oils and superior additives that helps protect against severe temperatures, shock loads, scuffing, scouring, corrosion and pitting in high speed, high load, high torque and high horsepower conditions.

Product Features:

Formulated for reliable gear protection
Protects against severe temperatures to help extend service life
Formulated with extreme-pressure additives to minimize gear wear from shock loads
Helps protect against gear wear from scuffing, scouring, corrosion and pitting
Recommended for conventional hypoid differentials and non-synchronized manual transmissions in passenger cars, light trucks, sport utility vehicles, vans and heavy-duty trucks where an API-GL5 or GL-4 fluid is specified
PLEASE NOTE: Valvoline recommends SynPower Full Synthetic Gear Oil for limited slip differentials

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$24.99

Max Gear is recommended for truck and automotive differentials, outboard motor lower units or in rear axles or manual transmissions requiring an API fluid. Max Gear is a high performance automotive gear oil designed to provide maximum protection to heavily loaded gears while increasing power throughput through the drive train. Max Gear virtually eliminates both gear and bearing wear-even under severe squeeze film conditions caused by extremely high loads, sudden shock loads or low RPMs. Slippery, synthetic molecules not only reduce wear and friction but significantly increase Max Gear’s cold weather fluidity and lubricity, making it the ideal choice for vehicles operating in cold climates. Gears run smoother, quieter, cooler and longer without overhauls. It is noncorrosive to both ferrous and nonferrous metals.

Product Features:

Maximizes horsepower
Extends gear and bearing life
Reduces operating temperature
Lower coefficient of friction
Superior corrosion protection
Separates rapidly from water
For use with open, limited-slip and locking differential
Contains limited-slip friction modifier
Made in USA

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$57.99

3 Qt. Penzoil 80W90 conventional gear Oil. W/ bottle of Posi additive.

Product Features:

Includes three quarts of conventional oil and one 4oz bottle of Yukon positraction additive

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$44.99

3 Qt. Penzoil 80W90 conventional gear Oil.

Product Features:

Includes three quarts of conventional oil

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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

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$137.99

Redline Synthetic “Shock Proof” Oil. 4 Quarts.

Product Features:

Includes four quarts of Redline Shockproof oil

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$28.99

Castrol® Transmax® ATF/CVT Universal is a premium full-synthetic transmission fluid engineered for exceptional performance in both traditional step-shifting automatic transmissions and modern continuously variable transmissions (CVTs). Featuring Castrol Smooth Drive® Technology, it ensures enhanced friction durability for seamless gear shifts and superior high-temperature protection to resist oxidation. This advanced formulation offers unmatched protection against copper corrosion, extending the life of your transmission system. Its broad compatibility covers a wide range of ATF and CVT applications, including Dexron VI, Mercon LV, Toyota WS, Honda DW-1, Nissan Matic S, and many more, making it ideal for diverse vehicle types, including hybrids. Designed to improve workshop efficiency and simplify inventory management, this fluid is a versatile solution for professional mechanics and DIY enthusiasts alike. Packaged in a convenient 1-gallon size, it delivers outstanding value and reliability for maintaining optimal transmission performance.

Product Features:

Enhanced friction durability for smooth transmission performance
Superior high temperature protection to effectively resist oxidation
Unsurpassed protection against copper corrosion
Broad scope of vehicle applications improves workshop efficiency and inventory management
ATF Applications: Dexron VI (Dexron III, Dexron), Mercon LV (Mercon SP, Mercon V, Mercon), JASO 1A (03), JASO 1A LV (13), Toyota T IV, Toyota T III, Toyota WS, Honda/Acura DW 1/Z 1, Nissan Matic D, Matic J, Matic S, Hyundai/Kia SP IV, SP III
ATF Applications: Mazda ATF M-V, M-III, FZ, Mitsubishi SP IV, SP III, IIM, II, PA, J3, VW/Audi (6, 8 & 9 speed automatics), BMW/Mini (6, 8 and 9 speed automatics), Jaguar/Land Rover (6, 8 & 9 speed automatics), Porsche (6, 8 & 9 speed automatics)
ATF Applications: Volvo (6, 8 and 9 speed automatics), Volvo Transmission Oil 97342, AT102, Mercedes-Benz (7 and 9 speed automatics)
CVT Applications: Toyota CVT Fluid TC, Toyota CVT Fluid FE , Nissan CVT Fluid NS-1, Nissan CVT Fluid NS-2, Nissan CVT Fluid NS-3, Subaru i-CVT Fluid, Subaru i-CVT FG, Subaru Lineartronic High Torque Chain CVTF, Honda HCF-2

Top-Quality Rear Housing Cover Gaskets for 2003 Ford Mustangs

Choose a high-quality OEM or aftermarket Rear Housing Cover Gasket for Ford Mustangs and enjoy top-notch performance from $8.99.

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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 Ford Mustang Differential Covers

Invest in one of our 5 durable Differential Covers for your 2003 Ford, knowing you’re getting trusted brands and expert craftsmanship.

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from

$99.99

Yukon outer stub axle for Chrysler 9.25″ front. This axle uses a 1485 u/joint and has 33 splines.

Product Features:

Fits Ford 8.8″
Steel

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$99.99

DiffrlCover

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$74.99

Chrome cover for 8.8″ Ford.

Product Features:

Fits Ford 8.8″
Chrome

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$42.99

Chrome cover for 7.5″ Ford.

Product Features:

Fits Ford 7.5″
Chrome

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$299.99

B&M Cast Aluminum Differential Covers are designed to strengthen the differential by preventing case distortion and ring gear & bearing cap deflection. Constructed of A356.0-T6 aluminum, these rugged covers significantly increase the fluid capacity and dissipate heat much faster than the stock factory unit to prolong the life of your ring and pinion gears. Additional features include an engraved B&M logo, drain and fill port locations, a magnetic drain plug for catching ferrous metal particles, and complete hardware and installation instructions.

Product Features:

Additional Oil Capacity
More Cooling Ability
No Dipstick Modification
Some Include Fluid Pickup Extension
Built-In Drain Plugs
Cast Aluminum

Top-Rated Differential Bearings for 2003 Ford Mustangs

Make a smart move for your 2003 Ford Mustang with products all priced from $10.99 to $34.49.

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from

$16.99

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

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

$10.99

Value-priced bearing meets all cataloged application requirements.

Product Features:

Brand may vary by location

from

$34.49

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

Top-Rated Differential Brands For Your 2003 Ford Mustang

When it comes to finding the perfect Differential for your 2003 Ford Mustang, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 19 trusted brands. We carry the most popular Differential brands including Valvoline, National, and Motive Gear, and more, all known for their exceptional customer ratings (average brand rating of 4.8 stars) and competitive prices, as low as $7.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 2003 Ford Mustang, providing peace of mind with parts that meet or exceed OEM standards.

Popular Valvoline 2003 Ford Mustang Differentials

If you’re looking for a top-quality Differential for your 2003 Ford Mustang, Advance Auto Parts has exactly what you need with our selection of Valvoline Differentials. We have 2 Valvoline Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $12.99 and an average cost of $24.49, you’ll find the perfect Differential for your needs and budget. Valvoline Differentials for the 2003 Ford Mustang come highly rated, with over 681 customer reviews and an impressive average rating of 4.8 stars. Choosing a Valvoline Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

from $12.99

(235)

High Performance Transmission & Differential Gear Oil: Conventional 80W-90, 1 Quart

“Good quality oil. Does it’s job.”

from $35.99

(446)

MaxLife Multi-Vehicle Automatic Transmission Fluid, 1 Gallon

“Good quality great price”

Top-Quality National 2003 Ford Mustang Differentials

For those in search of a high-quality Differential for their 2003 Ford Mustang, 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 $11.99, with an average price of $14.49, 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 $16.99

(25)

Multi-Purpose Bearing

“Smooth”

from $11.99

(2)

Bearing Race

“Reasonable price and woks well. front diff 2006 Escalade esv”

FAQs for 2003 Ford Mustang Differentials

What are the best-selling Differentials for 2003 Ford Mustangs?

Out of 232 Differentials that fit 2003 Ford Mustangs, the following parts are the top sellers:

Axle Housing Cover Gasket Rectangular Shaped, 10 Bolt Hole Gasket (5782406) – $15.99
MaxGear SAE 75W90 High Performance Gear Oil w/Friction Modifier Additive, 1 QT (7070082) – $24.99
Multi-Purpose Bearing (3275973) – $16.99

What’s the price range for 2003 Ford Mustang Differentials?

The prices of Differentials for the 2003 Ford Mustang range from $1.29 up to $2,064.99 for the most premium parts.

What is the average price of a Differential for a 2003 Ford Mustang?

The average price for Differentials for the 2003 Ford Mustang is $309.73. 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 Ford Mustang model years?

Yes, we carry Differentials for 55 model years of Ford Mustangs between 1964 and 2025. 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 2003 Ford Mustang?

The cheapest 2003 Ford Mustang Differentials we carry are:

Differential Ring Gear Bolt (10282257) – $1.29
Ring Gear Bolt (20520509) – $1.99
Differential Crush Sleeve (10282338) – $2.99
Differential Cross Shaft (10282201) – $2.99
Differential Crush Sleeve (10715159) – $3.99

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

Yes. We stock Differentials for 22 other popular 2003 Ford models. Some of the most popular are 2003 F-150 Differentials, 2003 E-250 Econoline Differentials, 2003 Thunderbird Differentials, 2003 Explorer Differentials, and 2003 F-250 Super Duty Differentials.

What types of Differentials do you sell for my 2003 Ford Mustang?

As of 3/1/26, these are some of the most in-demand types of Differentials for a 2003 Ford Mustang:

Can I get help with 2003 Ford Mustang Differential orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Ford Differentials and more.

What is your return policy for Ford Mustang Differentials?

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

2003 Ford Mustang Differentials

Schaeffler – Shaft Seal (Part No.SS2934)

Yukon Gear – Ford 8" & 9" Standard Open, Ag, & Detroit Locker Ring Gear Bolt (Part No.33058)

Yukon Gear – Carrier Installation Kit For Ford 8.8" Differential (Part No.57007)

Richmond Gear – Differential Cross Shaft (Part No.80-0273-1)

Motive Gear – Differential Mini Spool (Part No.MS88-28)

National – Multi-Purpose Bearing (Part No.A-6)

Motive Gear – Differential Gear Install Kit (Part No.F8IK)

Motive Gear – Differential Ring and Pinion (Part No.F9-567A)

Yukon Gear – Pinion Install Kit For Ford 7.5" Differential (Part No.13039)

National – Multi-Purpose Bearing (Part No.R-1535-TAV)

National – Tapered Roller Bearing Cone (Part No.HM88648)

Yukon Gear – Trac Loc Spring Plate For Ford 9" & 8" (Part No.33517)

USA Standard Gear – Pinion Installation Kit For ’09 & Down Ford 8.8 (Part No.60009)

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

Pro-King – Differential Internal Nest Kit (Part No.762B717)

Motive Gear – Differential Pinion Nut (Part No.379570S)

Yukon Gear – Shim Kit For 9" Ford Tracloc Clutch (Part No.16030)

Yukon Gear – Mini Spool For Ford 9" With 28 Spline Axles (Part No.32056)

Yukon Gear – Standard Open Spider Gear Kit For 7.5" Ford With 28 Spline Axles (Part No.16014)

Motive Gear – Differential Pinion Solid Spacer Kit w/Shims (Part No.4105)

Yukon Gear – Forged Yoke For Ford 9" With 28 Spline Pinion And A 1350 U/Joint Size (Part No.41064)

Yukon Gear – Side Gear And Thrust Washer (0.750" Shaft) For 8.8" Ford (Part No.33298)

Yukon Gear – The Carrier Bearing Puller (Part No.56072)

Yukon Gear – Dura Grip Positraction For Ford 8.8" With 28 Spline Axles (Part No.26005)

Powertrax – No-Slip Traction System (Part No.9206902800)

Powertrax – Lock Right Locker (Part No.1821-LR)

Yukon Gear – Pinion Gear And Thrust Washer (0.750" Shaft) For 8.8" Ford (Part No.33297)

Yukon Gear – Pinion Gear And Thrust Washer For 8" And 9" Ford, Model 20, And 7.25" Chrysler (Part No.33301)

Felpro – Axle Housing Cover Gasket Rectangular Shaped, 10 Bolt Hole Gasket (Part No.RDS 55341)

Mr. Gasket – Differential Gasket (Part No.142)

Yukon Gear – 8.8" Ford Cover Gasket (Part No.23011)

Yukon Gear – 7.5" Ford Cover Gasket (Part No.23009)

Pro-King – Differential Cover Gasket (Part No.762B303)

Valvoline – MaxLife Multi-Vehicle Automatic Transmission Fluid, 1 Gallon (Part No.773775)

Valvoline – High Performance Transmission & Differential Gear Oil: Conventional 80W-90, 1 Quart (Part No.VV831)

Royal Purple – MaxGear SAE 75W90 High Performance Gear Oil w/Friction Modifier Additive, 1 QT (Part No.01300)

Yukon Gear – 3 Qt – 80W90 Conventional Gear Oil With Posi Additive (Part No.15003)

Yukon Gear – 3 Qt – Penzoil 80W90 Conventional Gear Oil (Part No.15002)

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)

Castrol – Transmax ATF/CVT Universal Transmission Fluid, Smooth Performance, 1 Gallon (Part No.15E0C8)

Felpro – Axle Housing Cover Gasket Round Shaped 10 Bolt Hole Gasket (Part No.RDS 55460)

Yukon Gear – Steel Cover For Ford 8.8" (Part No.32328)

Yukon Gear – DiffrlCover (Part No.32364)

Yukon Gear – Chrome Cover For 8.8" Ford (Part No.32009)

Yukon Gear – Chrome Cover For 7.5" Ford (Part No.32008)

B & M – Rear End Cover 1 EA B&M (Part No.40297)

National – Multi-Purpose Bearing (Part No.A-6)

Driveworks – Taper Bearing Cone (Part No.S-LM-501349)

Schaeffler – Bearing – TRB (Tapered Roller Bearing) (Part No.KT36)