1971 Ford Mustang Differentials

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Keep Your 1971 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 1971 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 Pinion Seals, and Differential Bearings. 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 National, Motive Gear, and Felpro. For example, National Differentials start at just $13.79 with an average 4.3 star rating. Motive Gear and Felpro offer similar pricing and quality, backed by strong customer feedback. With over 1,518 reviews and a solid 4 star average, you can shop with confidence knowing other Ford Mustang owners approve.

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 1971 Ford Mustang in peak condition, inside and out.

Essential 1971 Ford Mustang Differentials

Mr. Gasket – Rear End Gasket – Ford 9" – Blend Of Nitrile Rubber And Fiber For Excellent Sealing And Durability (Part No.82)

Rear End Gasket - Ford 9" - Blend Of Nitrile Rubber And Fiber For Excellent Sealing And Durability

from

$25.99
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. Fits 1957-1981 Ford 10 bolt 9 inch ring gear.

Product Features:
  • .047″ thick cellulose/nitrile composite gasket material
  • Precision die cut
  • Reusable
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National – Bearing Race (Part No.LM102910)

Bearing Race

from

$7.29
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
See More

Yukon Gear – 3.062" Side Adjuster for Ford 9" (Part No.32139)

3.062" Side Adjuster for Ford 9"

from

$94.99
Yukon Gear & Axle dropouts are heavy duty. They feature upgraded nodular iron construction and a larger-than-OEM design to provide unrivaled strength and reliability in racing and off-road applications.

Product Features:
  • Side adjuster
  • Fits Ford 9″
  • 3.062″ designs only
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Yukon Gear – 8" Ford Pilot Bearing Retainer (Part No.33254)

8" Ford Pilot Bearing Retainer

from

$13.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.

Product Features:
  • Pilot bearing retainer for Ford 8″
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Yukon Gear – Standard Open Spider Gear Kit, Ford 9", 31 Spline, 2-Pinion Design (Part No.16033)

Standard Open Spider Gear Kit, Ford 9", 31 Spline, 2-Pinion Design

from

$301.99
Yukon Gear & Axle spider gear kits feature higher quality materials and better manufacturing techniques than OEM to ensure a longer lasting spider gear set. Kit delivers everything needed for a complete and proper spider gear set replacement.

Product Features:
  • Spider gear kit
  • Fits Ford 9″ open differential with 31 spline axles
  • Includes two side gears, two pinion gears, cross pin shaft, roll pin and spider gear thrust washers.
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Yukon Gear – Adjuster lock bolt 3.062" & 3.250" Yukon Ford 9" Drop Out (Part No.32149)

Adjuster lock bolt 3.062" & 3.250" Yukon Ford 9" Drop Out

from

$3.99
Yukon Gear & Axle dropouts are heavy duty. They feature upgraded nodular iron construction and a larger-than-OEM design to provide unrivaled strength and reliability in racing and off-road applications.

Product Features:
  • Side adjuster lock bolt
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National – Shaft Repair Sleeve (Part No.99181)

Shaft Repair Sleeve

from

$37.99
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
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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

$12.49
Valvoline Full Synthetic MaxLife Multi-Vehicle ATF, the No. 1 ATF product, suitable for use in 95% of vehicles. And now, it’s recommended for most belt & chain-driven continuously variable transmissions (CVT). Featuring advanced additives to prevent the major causes of transmission breakdown, it’s designed to help prevent leaks, reduce wear & tear, and maximize performance. Has improved thermal stability for longer fluid life, better viscosity stability for consistent transmission operation, and frictional enhancements for smooth gear engagements. Valv MaxLife Multi-Vehicle ATF is suitable for most Ford, GM, Toyota, Honda, Nissan, Hyundai, Subaru, BMW, Mercedes, Volvo, VW & Audi vehicles. Recommended for use in: GM DEXRON-II, DEXRON-III, DEXRON-VI, and DEX-CVT; Ford MERCON LV; Toyota/Lexus Type T, T-II, T-IV, WS, CVTF FE, and CVTF TC; Honda/Acura ATF-Z1 and Honda CVT; Nissan/Infiniti Matic-D, Matic-J, Matic-K and Matic-S; Hyundai/Kia SP-II, SP-III, SP-IV and SPH-IV; BMW 7045E, ETL 8072B, LA2634 and LT71141; Allison C-4; Mercedes-Benz NAG-1; Volvo 1161521, 1161540, 97340 and 1273.41; Subaru ATF HP, Lineartronic chain CVT and CVT-II, Lineartronic High Torque CVT, and CV-30; and VW/Audi G-052-025-A2 and G-052-162-A1. CURRENTLY UNABLE TO SHIP THIS PRODUCT TO CUSTOMERS LOCATED IN CALIFORNIA

Product Features:
  • FOR USE IN 95% OF VEHICLES INCLUDING MOST CVTs in operation with US registered light duty applications
  • HIGH PERFORMANCE CONDITIONING AGENTS prolong seal elasticity to prevent leaks
  • IMPROVED DURABILITY & TRANSMISSION LIFE with anti-wear technology to avoid costly repairs
  • ENHANCED HIGH & LOW TEMP PERFORMANCE supports transmission fluid in all weather situations
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Yukon Gear – Pinion Install Kit for Ford Daytona 9" Differential (Part No.13045)

Pinion Install Kit for Ford Daytona 9" Differential

from

$284.99
Yukon Pinion Installation Kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings and races can be reused. This kit features Timken bearings and races along with high-quality seals and small parts. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your gear set.

Product Features:
  • Fits Ford 9″ with Daytona pinion support
  • 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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Driveworks – Taper Bearing Cup (Part No.S-LM-501314)

Taper Bearing Cup

from

$7.99
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
See More

Yukon Gear – Pilot Bearing for Ford 8" (Part No.18043)

Pilot Bearing for Ford 8"

from

$40.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.

Product Features:
  • Pilot bearing
  • Fits Ford 8″
See More

Motive Gear – Differential Housing (Part No.26306)

Differential Housing

from

$533.99
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.

Product Features:
  • NODULAR HOUSING 9″ FORD 3.062 BORE STRANGE # N1905
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Schaeffler – Shaft Seal (Part No.SS2852)

Shaft Seal

from

$14.99
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
See More

Yukon Gear – Crush Sleeve Eliminator Kit for Ford 9" (Part No.55041)

Crush Sleeve Eliminator Kit for Ford 9"

from

$68.99
Yukon shim kits are precision machined and tailored for each individual application to ensure you have the right shims for every set up.

Product Features:
  • Crush sleeve eliminator kit for Ford 9″ with 28 spline pinion
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Yukon Gear – Star Washers, 3.250" Ford 9" Drop Out New Design Only (Part No.32144)

Star Washers, 3.250" Ford 9" Drop Out New Design Only

from

$4.99
Yukon Gear & Axle dropouts are heavy duty. They feature upgraded nodular iron construction and a larger-than-OEM design to provide unrivaled strength and reliability in racing and off-road applications.

Product Features:
  • Star washer
  • Fits Ford 9″
  • 3.250″ designs only
See More

Yukon Gear – Yoke (Short, for Daytona Support), Ford 9", 28 Spline, 1310 U-Joint (Part No.41056)

Yoke (Short, for Daytona Support), Ford 9", 28 Spline, 1310 U-Joint

from

$319.99
Yukon Gear and Axle manufactures a complete line of general replacement and performance series of pinion yokes for many street, racing, and heavy-duty off-road applications.

Product Features:
  • Fits Ford 9″
  • 28 spline
  • 1310 u-joint size
  • 3.219″ snap ring span
  • 1.062″ cap diameter
  • Outside snap ring design
  • U-bolt style
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Yukon Gear – Trac Loc For Ford 9" Wtih 31 Spline Axles – Street Design (Part No.26010)

Trac Loc For Ford 9" Wtih 31 Spline Axles - Street Design

from

$789.99
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 Trac Loc uses a nodular case, billet side hat, and forged internals for higher strength than stock Trac-Locs. The units use composite clutches for high performance and long life. All units are Rebuildable. Yukon offers a one year warranty against manufacturing defects.

Product Features:
  • Fits Ford 9″ with 31 spline axles
  • Trac Loc positraction
  • Clutch style positraction
  • Street design
  • 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 – 8" Ford O-Ring (Part No.30027)

8" Ford O-Ring

from

$9.99
Yukon Mighty Seals use the latest design and manufacturing technologies to produce a precision fit that seals tight and lasts for years to come.

Product Features:
  • Pinion support O-ring
  • Fits Ford 8″
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Yukon Gear – Purple Aluminum Pinion Support for 9" Ford Daytona (Part No.32161)

Purple Aluminum Pinion Support for 9" Ford Daytona

from

$219.99
Yukon heavy duty pinion supports feature upgraded materials and a larger design than OEM to provide heavy duty strength in racing and off-road applications

Product Features:
  • Fits Ford 9″ with 28 spline pinion
  • Larger inner pinion bearing reduces gear deflection under high load
  • 6061 aluminum
  • Anodized purple
  • Does not include races
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Powertrax – Differential Lock Assembly (Part No.1810-LR)

Differential Lock Assembly

from

$339.99
For vehicles that are driven daily, the Power Trax 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 Power Trax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Power Trax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Power Trax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds.

Product Features:
  • The Power Trax Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Power Trax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.
  • Power Trax lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.
  • Power Trax 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.
  • Power Trax ia an Extreme Traction System
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Yukon Gear – Bearing Race Driver for Popular Ford, Gm, Amc, Chrysler, and Dana Diffs (Part No.56020)

Bearing Race Driver for Popular Ford, Gm, Amc, Chrysler, and Dana Diffs

from

$215.99
Yukon Gear & Axle offers a full line of top quality differential tools to save time and money.

Product Features:
  • Fits M802011 race
  • All-steel construction
  • For accurate installation of bearing races
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Yukon Gear – Pinion Depth Shims for Ford 8" (Part No.55055)

Pinion Depth Shims for Ford 8"

from

$31.99
Yukon shim kits are precision machined and tailored for each individual application to ensure you have the right shims for every set up.

Product Features:
  • Pinion depth shims for Ford 8″
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Richmond Gear – Differential Gear Install Kit (Part No.83-1011-B)

Differential Gear Install Kit

from

$48.99
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.
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Richmond Gear – Differential Pinion Shaft (Part No.CSPF88L)

Differential Pinion Shaft

from

$26.99
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 limited 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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Yukon Gear – Outer Oil Slinger For Ford 7.5", 8.8", 9", 10.25" (Part No.33022)

Outer Oil Slinger For Ford 7.5", 8.8", 9", 10.25"

from

$8.99
Replacement outer oil slinger for Ford 7.5″, 8.8″, 9″, 10.25″, Nissan Titan rear, Dana 44 Rubicon & 44 JK non-Rubicon.

Product Features:
  • Outer oil slinger for Ford 10.25″, 7.5″, 8.8″ and 9″ also Jeep JK and Nissan Titan rear
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Yukon Gear – Dura Grip For Ford 7.5" (Part No.26034)

Dura Grip For Ford 7.5"

from

$789.99
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 in

Product Features:
  • Fits Ford 7.5″
  • 28 spline
  • 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
See More

Yukon Gear – Trac Loc Clutch Set (Two Sides) for 7.5" Ford (Part No.16013)

Trac Loc Clutch Set (Two Sides) for 7.5" Ford

from

$264.99
Yukon Gear & Axle clutch kits fit popular Ford diffs outfitted with a Trac Loc style positraction unit feature stout clutch plates, ensuring total traction and long-lasting performance.

Product Features:
  • Clutch kit
  • Fit Ford 7.5″ Trac Loc positraction
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ARP Auto Racing – For Use With Ford 8.8 And 9" Using 3/4"Socket, 0.75"L Under Head, 7/16"-20 (Part No.250-3003)

For Use With Ford 8.8 And 9" Using 3/4"Socket, 0.75"L Under Head, 7/16"-20

from

$43.99
The tremendous shock loads generated at launch by most any drag racing vehicle equipped with today sticky tire compounds or the acceleration and deceleration of oval track cars put considerable strain on the ring gear. For this reason, the fastener experts at ARP have developed the Pro Series ring gear bolts. they are forged from premium grade 8740 chrome moly steel and are heat treated to a nominal rating of 200,000 PSI tensile strength. Specially hardened, precision ground washers are included where required. Available to fit most any ring gear setup ranging from popular 9 Inch Ford GM 10 and 12 bolt rear ends to the beefy strange differentials found in top fuel and funny car applications.

Product Features:
  • Forged From Premium Grade 8740 Chrome Moly Steel
  • Heat Treated
  • Nominally Rated At 200,000 Psi Tensile Strength
  • Specially Hardened, Precision Ground Washers
  • 0.75″ Underhead Length
  • 200,000 PSI
  • Sold As A Set
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Popular 1971 Ford Mustang Differentials Categories

Most Popular Rear Differential Cover Gaskets for 1971 Ford Mustangs

Enhance your 1971 Ford Mustang with one of the 4 Rear Differential Cover Gaskets we have in stock, starting at just $6.49.

Yukon Gear – 9" Ford Gasket (Part No.23012)

9" Ford Gasket

from

$11.99
9″ Ford gasket.

Product Features:
  • Dropout gasket
  • Fits Ford 9″
See More

Mr. Gasket – Rear End Gasket – Ford 9" – Blend Of Nitrile Rubber And Fiber For Excellent Sealing And Durability (Part No.82)

Rear End Gasket - Ford 9" - Blend Of Nitrile Rubber And Fiber For Excellent Sealing And Durability

from

$25.99
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. Fits 1957-1981 Ford 10 bolt 9 inch ring gear.

Product Features:
  • .047″ thick cellulose/nitrile composite gasket material
  • Precision die cut
  • Reusable
See More

Victor Reinz – Differential Cover Gasket (Part No.71-14829-00)

Differential Cover Gasket

from

$8.99
Product Features:
  • Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
  • Dana engineering-approved for fit, form and function
  • Meets or exceeds OE specifications
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Victor Reinz – Differential Cover Gasket (Part No.71-14821-00)

Differential Cover Gasket

from

$6.49
Product Features:
  • Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
  • Dana engineering-approved for fit, form and function
  • Meets or exceeds OE specifications
See More

Best-Selling 1971 Ford Mustang Differential Pinion Seals

Upgrade your Mustang with one of our 8 best-selling Differential Pinion Seals, earning an average 3.67 stars rating across 6 reviews.

National – Multi-Purpose Seal (Part No.7044NA)

Multi-Purpose Seal

from

$14.99
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:
  • Design type: spring loaded; multi-lip
  • Temperature range: -40 Deg. F to 225 Deg. F / -40 Deg. C to 107 Deg. C
  • Good low temperature capability
  • Low swell in hydrocarbon fluids
  • Delivers quality and reliable performance for every type of repair
See More

National – Multi-Purpose Seal (Part No.8181NA)

Multi-Purpose Seal

from

$12.99
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:
  • Design type: spring loaded; multi-lip
  • Temperature range: -40 Deg. F to 225 Deg. F / -40 Deg. C to 107 Deg. C
  • Good low temperature capability
  • Low swell in hydrocarbon fluids
  • Delivers quality and reliable performance for every type of repair
See More

Driveworks – Oil Seal (Part No.S-7044NA)

Oil Seal

from

$6.49
Value-priced seal meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
See More

Yukon Gear – Pinion Seal for ’61-’85 9" Ford (Part No.30137)

Pinion Seal for '61-'85 9" Ford

from

$17.99
Yukon Mighty Seals use the latest design and manufacturing technologies to produce a precision fit that seals tight and lasts for years to come.

Product Features:
  • Pinion seal
  • Fits 1961-1985 Ford 9″
  • 3.00″ O.D.
See More

Yukon Gear – 8" Ford Pinion Seal (Part No.30180)

8" Ford Pinion Seal

from

$24.99
Yukon Mighty Seals use the latest design and manufacturing technologies to produce a precision fit that seals tight and lasts for years to come.

Product Features:
  • Pinion seal
  • Fits Ford 8″
See More

Schaeffler – Shaft Seal (Part No.SS2934)

Shaft Seal

from

$13.99
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
See More

Motive Gear – Differential Pinion Seal (Part No.7044NA)

Differential Pinion Seal

from

$12.99
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.
See More

Motive Gear – Differential Pinion Seal (Part No.8181NA)

Differential Pinion Seal

from

$9.99
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.
See More

Top-Quality Differential Bearings for 1971 Ford Mustangs

Choose a high-quality OEM or aftermarket Differential Bearing for Ford Mustangs and enjoy top-notch performance from $7.29.

National – Multi-Purpose Bearing (Part No.A-13)

Multi-Purpose Bearing

from

$13.79
Manufactured with premium-grade steel, National taper bearing sets feature crowned raceways and rollers to ensure even load distribution.

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
See More

National – Bearing Race (Part No.LM102910)

Bearing Race

from

$7.29
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
See More

Yukon Gear – Pilot Bearing retainer for Ford 9" (Part No.33255)

Pilot Bearing retainer for Ford 9"

from

$11.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.

Product Features:
  • Pilot bearing retainer for Ford 9″
See More

Schaeffler – Bearing – TRB (Tapered Roller Bearing) (Part No.KT47)

Bearing - TRB (Tapered Roller Bearing)

from

$26.99
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
See More

Schaeffler – Bearing – TRB (Tapered Roller Bearing) (Part No.KT13)

Bearing - TRB (Tapered Roller Bearing)

from

$14.99
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
See More

Schaeffler – Cone (Part No.KL68149)

Cone

from

$12.99
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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Schaeffler – Cup (Part No.M88010)

Cup

from

$10.99
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
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Top Picks for 1971 Ford Mustang Differential Oil

Invest in one of our 5 durable Differential Oil for your 1971 Ford, knowing you’re getting trusted brands and expert craftsmanship.

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

3 Qt - 80W90 Conventional Gear Oil with Posi Additive

from

$57.99
Union 76 gear oil is a conventional non-synthetic 80W90 formulation designed for all types of differentials. This kit includes three quarts of oil and a bottle of Yukon Limited Slip Friction modifier that reduces noise and chatter in clutch driven positraction units and limited slip differentials.

Product Features:
  • Includes three quarts of conventional oil and one 4oz bottle of Yukon positraction additive
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Yukon Gear – 3 Qt – Penzoil 80W90 Conventional Gear Oil (Part No.15002)

3 Qt - Penzoil 80W90 Conventional Gear Oil

from

$44.99
Union 76 gear oil is a conventional non-synthetic 80W90 formulation designed for all types of differentials.

Product Features:
  • Includes three quarts of conventional oil
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Yukon Gear – Redline Synthetic "Shock Proof" Oil with Positraction Additive – 4 Quarts (Part No.15005)

Redline Synthetic "Shock Proof" Oil with Positraction Additive - 4 Quarts

from

$148.99
Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection. This kit includes four quarts of oil and a bottle of Yukon Limited Slip Friction modifier that reduces noise and chatter in clutch driven positraction units and limited slip differentials.

Product Features:
  • Includes four quarts of Redline Shockproof oil and one 4oz bottle of Yukon positraction additive
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Yukon Gear – Redline Synthetic "Shock Proof" Oil – 3 Quarts (Part No.15000)

Redline Synthetic "Shock Proof" Oil - 3 Quarts

from

$99.99
Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection.

Product Features:
  • Includes three quarts of Redline Shockproof oil
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Yukon Gear – Redline Synthetic "Shock Proof" Oil – 4 Quarts (Part No.15004)

Redline Synthetic "Shock Proof" Oil - 4 Quarts

from

$137.99
Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection.

Product Features:
  • Includes four quarts of Redline Shockproof oil
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Top-Rated Front Differential Pinion Bearings for 1971 Ford Mustangs

Make a smart move for your 1971 Ford Mustang with products all priced from $9.99 to $38.99.

National – Tapered Roller Bearing Cone (Part No.HM89443)

Tapered Roller Bearing Cone

from

$38.99
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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National – Bearing Race (Part No.M86610)

Bearing Race

from

$9.99
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
See More

Top-Rated Differential Brands For Your 1971 Ford Mustang

When it comes to finding the perfect Differential for your 1971 Ford Mustang, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 15 trusted brands. We carry the most popular Differential brands including Felpro, National, and Motive Gear, and more, all known for their exceptional customer ratings (average brand rating of 4.6 stars) and competitive prices, as low as $2.79. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1971 Ford Mustang, providing peace of mind with parts that meet or exceed OEM standards.

Popular Felpro 1971 Ford Mustang Differentials

If you’re looking for a top-quality Differential for your 1971 Ford Mustang, Advance Auto Parts has exactly what you need with our selection of Felpro Differentials. We have 1 Felpro Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $9.99, you’ll find the perfect Differential for your needs and budget. Felpro Differentials for the 1971 Ford Mustang come highly rated, with over 9 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.
Differential Carrier Gasket Oval Shaped 10 Bolt Hole Gasket
from $9.99
(9)
Differential Carrier Gasket Oval Shaped 10 Bolt Hole Gasket
“Right fit the first time.”

Top-Quality National 1971 Ford Mustang Differentials

For those in search of a high-quality Differential for their 1971 Ford Mustang, 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 $13.79, with an average price of $22.59, giving you a range of options to suit your budget. Backed by over 22 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.
Multi-Purpose Seal
from $14.99
(3)
Multi-Purpose Seal
“good quality”
Tapered Roller Bearing Cone
from $38.99
(2)
Tapered Roller Bearing Cone
“nice finish and function. Should perform well.”
Multi-Purpose Bearing
from $13.79
(17)
Multi-Purpose Bearing
“Good quality product”

FAQs for 1971 Ford Mustang Differentials

What are the best-selling Differentials for 1971 Ford Mustangs?

Out of 367 Differentials that fit 1971 Ford Mustangs, the following parts are the top sellers:

What’s the price range for 1971 Ford Mustang Differentials?

The prices of Differentials for the 1971 Ford Mustang range from $1.99 up to $1,211.99 for the most premium parts.

What is the average price of a Differential for a 1971 Ford Mustang?

The average price for Differentials for the 1971 Ford Mustang is $258.34. 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 1971 Ford Mustang?

The cheapest 1971 Ford Mustang Differentials we carry are:

Does Advance Auto Parts sell Differentials for any other 1971 Ford models?

Yes. We stock Differentials for 24 other popular 1971 Ford models. Some of the most popular are 1971 Thunderbird Differentials, 1971 Bronco Differentials, 1971 Country Squire Differentials, 1971 LTD Differentials, and 1971 Galaxie 500 Differentials.

What are the top-rated Differentials that fit the 1971 Ford Mustang?

The one 1971 Ford Mustang Differential we have in stock is the Ring Gear Bolt. It costs $1.99.

What types of Differentials do you sell for my 1971 Ford Mustang?

As of 6/2/26, these are some of the most in-demand types of Differentials for a 1971 Ford Mustang:

Can I get help with 1971 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.