1979 Ford Mustang Differentials

Essential 1979 Ford Mustang Differentials

Spectre – Differential Cover (Part No.6073)

Differential Cover

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$52.99
Spectre’s Differential Covers are made to OEM specifications and are triple chrome plated for a lasting shine. Designed to protect the intricate moving parts of the differential, Spectre’s covers add an extra layer of protection to the vehicle’s underside. Featuring a 10-bolt design and fits the following vehicles with 7.5 inch ring gears: 1979-2003 Ford Mustang/Capri V8, 1982-2003 Ford Ranger, 1984-1997 Ford Aerostar, 1982-1992 Ford Bronco II, and 1994-2003 Mazda 2300/3000 differentials. Includes 10 SAE standard chrome bolts for installation. You’ll need to supply your own bolts if your application requires metric bolts.

Product Features:
  • 10 chrome 5/16 inch -18 x 3/4 inch differential cover bolts
  • 10-bolt design
  • Triple chrome plated for a lasting shine
  • Precision engineered for a perfect fit
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National – Bearings (Part No.NP559445)

Bearings

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$59.99
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 – Bearing Race Driver (Part No.56023)

Bearing Race Driver

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$219.99
Bearing race driver. No return.

Product Features:
  • Bearing race driver
  • Fits M88010 race
  • All steel construction
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Yukon Gear – Trao Loc Spring For Ford 8.8", 28 Spline (Part No.33515)

Trao Loc Spring For Ford 8.8", 28 Spline

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$63.99
Product Features:
  • Trac Loc spring
  • Fits 28 spline Ford 8.8
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Dorman – Differential Clutch Kit (Part No.697-780)

Differential Clutch Kit

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$262.99
This differential disc kit is a low-cost, time-saving repair solution for the posi-traction function. They are designed to match the fit and performance of the original disc on specific vehicle years, makes and models.

Product Features:
  • Direct replacement – this differential clutch kit provides the necessary components for repairing the original equipment on specific vehicles
  • Quality materials – all components are built for reliable longevity and performance
  • Smart solution – provides original equipment fit and function for a competitive price compared to original manufacturer
  • Trustworthy quality – backed by team of designers and engineers in the United States
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Motive Gear – Differential Pinion Shim Kit (Part No.1100)

Differential Pinion Shim Kit

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$7.49
High-quality Differential Component Shim

Product Features:
  • SHIM KIT FITS-8.25-F7.5-AMC20-GM0
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Yukon Gear – Pinion Gear And Thrust Washer (0.875" Shaft) For 8.8" Ford (Part No.33299)

Pinion Gear And Thrust Washer (0.875" Shaft) For 8.8" Ford

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$11.99
Pinion gear thrust washer (0.875″ shaft) for 8.8″ Ford.

Product Features:
  • Pinion gear thrust washer for Ford 8.8″
  • 0.875″ diameter cross pin shaft applications only
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Yukon Gear – 8.8" Ford Cover Gasket (Part No.23011)

8.8" Ford Cover Gasket

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$12.99
8.8″ Ford cover gasket.

Product Features:
  • Cover gasket
  • Fits Ford 8.8″
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Yukon Gear – Trac Loc Ring Gear Bolt Washer For 8" And 9" Ford (Part No.33245)

Trac Loc Ring Gear Bolt Washer For 8" And 9" Ford

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$3.99
Trac Loc ring gear bolt washer for 8″ and 9″ Ford.

Product Features:
  • Ring gear bolt for Ford 8″ and 9″
  • For Trac Loc positraction applications only
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Yukon Gear – Pinion Install Kit For Ford 7.5" Differential (Part No.13039)

Pinion Install Kit For Ford 7.5" Differential

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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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Yukon Gear – Master Overhaul Kit For Ford 9" LM104911 Differential, 28 Spline Pinion (Part No.14062)

Master Overhaul Kit For Ford 9" LM104911 Differential, 28 Spline Pinion

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$544.99
Yukon Master Overhaul kits give you all the high quality parts you need to start & finish every differential job. Yukon offers more tailor-made kits than any other manufacturer in the industry to meet your specific installation needs. This kit uses Timken bearings and races along with high quality seals and small parts. Included in this kit are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable), Thread locking compound, marking compound with brush, and gasket. Yukon’s Master Overhaul kits are the most comprehensive and complete kits on the market. They do extensive research to ensure that every kit is specially tailored to your application.

Product Features:
  • Fits Ford 9″ with oversize pinion support and 28 spline pinion
  • Fits Ford 9″ with LM104911 carrier races
  • Included are Timken bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve, pilot bearing, thread locker, marking compound with brush, and gasket.
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Motive Gear – Differential Carrier Shim Kit (Part No.1101)

Differential Carrier Shim Kit

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$8.49
High-quality Differential Carrier Shim Kit

Product Features:
  • CARRIER SHIMS 12 BOLT GM CAR & TRUCK ALSO GM8.6″ 99-ON
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National – Shaft Repair Sleeve (Part No.99199)

Shaft Repair Sleeve

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$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
  • Installation tool reduces sleeve distortion and allows for installation without removal from the shaft
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Yukon Gear – Left Hand Axle For Ford 7.5" – Fits ’05-’10 Mustang With ABS (Part No.21498)

Left Hand Axle For Ford 7.5" - Fits '05-'10 Mustang With ABS

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$494.99
Left hand axle for Ford 7.5″. fits ’05-’10 Mustang with ABS. Yukon 1541H alloy axles offer a strength increase over stock while retaining a low cost. Yukon 1541H alloy axles come with a one year warranty against manufacturing defects. .

Product Features:
  • 28 spline
  • 5 lug
  • 31 7/8″ long
  • Fits Ford 7.5″ in 2005-2010 Mustang
  • Left hand side
  • ABS applications only
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Yukon Gear – 8.5" & 8.2" GM Carrier Installation Kit (Part No.57008)

8.5" & 8.2" GM Carrier Installation Kit

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$109.99
Yukon Carrier installation kits are great, low cost kit for carrier changes such as Positraction or locker upgrades. Carrier installation kit for GM 8.2″ & 8.5″ differential. This kit contains carrier bearings, races and shims.

Product Features:
  • Fits GM 7.5″, 7.625″ 8.2″ and 8.5″
  • Includes carrier bearings and races and “super” carrier shim kit
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Pro-King – Differential Internal Nest Kit (Part No.762B717A)

Differential Internal Nest Kit

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$99.99
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 – Grizzly Locker For Ford 9" With 35 Spline Axles (Part No.28011)

Grizzly Locker For Ford 9" With 35 Spline Axles

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$946.99
The Yukon Grizzly Locker is the ultimate in locking differentials for street, off-road, & drag racing. Grizzly Lockers provide 100% power to both tires, while still allowing for disengagement while negotiating turns. The Yukon Grizzly locker is a mechanical locking differential. It features a forged case and 8620 internals for maximum strength. It’s patented design reduces common locker failures. All units assembled in the USA! All Grizzly Lockers are backed by the best warranty in the business! Yukon covers the replacement unit and covers any collaterally damaged parts and associated labor, up to $2,000! This locker also fits 9.5″ & 10″ dropouts.

Product Features:
  • Fits Ford 9″ with 35 spline axles
  • Patented internal design reduces common locker failures
  • 8620 internals for added strength
  • Assembled in the USA
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Motive Gear – Differential Pinion Seal (Part No.3604)

Differential Pinion Seal

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$5.79
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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Driveworks – Taper Bearing Set (Part No.S-A-6)

Taper Bearing Set

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$10.29
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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Yukon Gear – Dana 44, Ford 8" / 9", And Model 20 Side Gear Thrust Washer Replacement (Part No.33283)

Dana 44, Ford 8" / 9", And Model 20 Side Gear Thrust Washer Replacement

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$5.99
Product Features:
  • Side gear thrust washer for Ford 8″, Ford 9″ and AMC Model 20
  • 0.030″ thick
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Felpro – Differential Cover Gasket (Part No.RDS 55081)

Differential Cover Gasket

from

$14.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Unsurpassed quality you can trust
  • Validated for fit, form and function
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
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Yukon Gear – Cross Pin Shaft (0.875") For ’86 And Newer 8.8" Ford (Part No.33331)

Cross Pin Shaft (0.875") For '86 And Newer 8.8" Ford

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$42.99
Cross pin shaft (0.875″) for ’86 and newer 8.8″ Ford.

Product Features:
  • Cross pin shaft for Ford 8.8″
  • 0.875″ diameter
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National – Bearings (Part No.M88010)

Bearings

from

$10.49
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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USA Standard Gear – Standard Spider Gear Set For Ford 8.8" Trac Loc Posi, 31 Spline (Part No.39032)

Standard Spider Gear Set For Ford 8.8" Trac Loc Posi, 31 Spline

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$299.99
Product Features:
  • Spider gear kit
  • Fits Ford 8.8″ 31 spline Trac Loc positraction
  • Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.
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Yukon Gear – 8.8" Ford Tracloc Clutch Set, Both Sides (Part No.16018)

8.8" Ford Tracloc Clutch Set, Both Sides

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$241.99
8.8″ Ford TracLoc (with short ears–for late models only) clutch set, both sides.

Product Features:
  • Clutch kit
  • Fit Ford 8.8″ Trac Loc positraction
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Spartan – Drive Axle Assembly; Ford Mustang 99-04 Axle (Part No.RAX1962A)

Drive Axle Assembly; Ford Mustang 99-04 Axle

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$1422.99
Remanufactured Rear Axle assemblies are completely disassembled, thoroughly cleaned and reassembled using new wear parts. Units are assembled, sealed & include backing plates, axle shafts & fluid.

Product Features:
  • Rear axles are assembled with backing plates & axle shafts, and filled with fluid prior to shipping
  • Axles are fully painted & shipped securely in environmentally safe and recyclable containers that are the perfect size for returning your original core
  • Our complete Rear axle assemblies mean you just hang brakes, connect suspension & go! Your installation will be simple and trouble free
  • Remember to match axle ratio to original. For 4WD rear axle must match front axle ratio
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Yukon Gear – Differential Pinion (Part No.33577)

Differential Pinion

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$44.99
Differential Pinion

Yukon Gear – Tracloc For Ford 9" Wtih 28 Spline Axles – Street Design (Part No.26008)

Tracloc For Ford 9" Wtih 28 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 28 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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1979 Ford Mustang Differentials

Maybe you’re in the middle of a full rebuild of that 1979 Ford Mustang. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 187 different Differentials in our inventory ranging from $0.99 to $2,064.99. That means you can find the exact parts or products you need to keep that 1979 Ford Mustang running smoothly.

Differentials are only as good as their brand. We stock 13 different brands to make sure you have plenty of trusted parts to choose from for your 1979 Ford Mustang. National, Yukon Gear, and Felpro are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Differentials for your 1979 Ford Mustang, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 648 reviews in this category, some of the top rated parts include Bearings with 4.7 stars and Taper Bearing Cone with 3.0 stars.

So if you’re in the market for aftermarket Differentials to keep your 1979 Ford Mustang 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 1979 Ford Mustang Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1979 Ford Mustang 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 Mustang the best it can be. Be sure to browse some of our top Differentials brands and parts.

Popular Powertrax Differentials

We carry Powertrax parts in our stock across Differential Open Unit and Components categories, plus more. For a 1979 Ford Mustang, our most popular Powertrax Differentials include:
Lock Right Locker
from $444.99
(1)
Lock Right Locker
Differential Open Unit and Components

Top 1979 Ford Mustang Differentials from National

National products are another trusted brand when it comes to Differentials for your 1979 Ford Mustang. Popular National parts include:
Multi Purpose Seal
from $11.99
(28)
Multi Purpose Seal
Differential Pinion Seals
Bearings
from $15.99
(9)
Bearings
Front Differential Pinion Bearings
Bearings
from $10.49
(4)
Bearings
Rear Differential Pinion Bearings

FAQs for 1979 Ford Mustang Differentials

What are the most purchased Differentials for the 1979 Ford Mustang?

Out of 187 Differentials for the 1979 Ford Mustang, the most popular in our inventory are:
3 Qt - Penzoil 80W90 Conventional Gear Oil
from $44.99
This product is not rated
3 Qt – Penzoil 80W90 Conventional Gear Oil
Differential Oil
Differential Cover Gasket
from $6.49
(13)
Differential Cover Gasket
Rear Housing Cover Gaskets
Oil Seal
from $4.79
(1)
Oil Seal
Differential Pinion Seals

What are the top-rated 1979 Ford Mustang Differentials?

Top-rated Differentials for your 1979 Ford Mustang based on customer reviews/ratings are:
Bearings
from $18.79
(3)
Bearings
“as advertised”
Taper Bearing Cone
from $17.99
(2)
Taper Bearing Cone
“good deal”
Shaft Repair Sleeve
from $37.99
(1)
Shaft Repair Sleeve
“Very delicate piece, but came shipped quite safely and not damaged. High quality.”