1979 Mercury Capri Differentials

Essential 1979 Mercury Capri Differentials

Yukon Gear – Grizzly Locker, Ford 8.8" With 31 Splines (Part No.28031)

Grizzly Locker, Ford 8.8" With 31 Splines

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$1099.99
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!

Product Features:
  • Fits Ford 8.8″ with 31 spline axles
  • Patented internal design reduces common locker failures
  • 8620 internals for added strength
  • Assembled in the USA
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Yukon Gear – Trac Loc Clutch Hub For 9" Ford With 28 Splines (Part No.16159)

Trac Loc Clutch Hub For 9" Ford With 28 Splines

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$139.99
Trac Loc clutch hub for 9″ Ford with 28 splines.

Product Features:
  • Clutch hub
  • Fits Ford 8″ and 9″ 28 spline Trac Loc
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Yukon Gear – Ford 7.5" & 8.8" Ring Gear Bolt, Standard Open & Tracloc (Part No.33053)

Ford 7.5" & 8.8" Ring Gear Bolt, Standard Open & Tracloc

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$5.99
Ford 7.5″ & 8.8″ ring gear bolt, standard Open & TracLoc. 7/16″ x 20.

Product Features:
  • Ring gear bolt for Ford 7.5″ and 8.8″
  • 7/16″ x 20
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Powertrax – Lock Right Locker (Part No.1830-LR)

Lock Right Locker

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$444.99
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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    National – Shaft Repair Sleeve (Part No.99166)

    Shaft Repair Sleeve

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    $34.99
    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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    Motive Gear – Differential Pinion Solid Spacer Kit w/Shims (Part No.4105)

    Differential Pinion Solid Spacer Kit w/Shims

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    $22.79


    Product Features:
    • FORD 9″ SOLID SPACER KIT
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    Yukon Gear – Flat Side Gear Without Hub For 8" And 9" Ford With 28 Splines (Part No.16164)

    Flat Side Gear Without Hub For 8" And 9" Ford With 28 Splines

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    $51.99
    Flat side gear without hub for 8″ and 9″ Ford with 28 splines.

    Product Features:
    • Side gear without hub
    • Fits Ford 8″ and 9″ Trac Loc positraction with 28 spline axles
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    Yukon Gear – DiffrlCover (Part No.32364)

    DiffrlCover

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    $99.99
    DiffrlCover

    Yukon Gear – Bearing Install Kit For Ford 7.5" Differential (Part No.11039)

    Bearing Install Kit For Ford 7.5" Differential

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    $228.99
    Yukon Bearing installation kits are perfect for shops & builders who have shims on the shelf and are looking to save cost over a Master Overhaul kit. This kit uses Timken bearings and races along with all high quality small parts. kit includes carrier bearings and races, pinion bearings and races, pinion seal, crush sleeve (if applicable), oil baffles and slingers (if applicable), marking compound and brush. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your ring & pinion set.

    Product Features:
    • Fits Ford 7.5″
    • Included are carrier bearings and races, pinion bearings and races, pinion seal, crush sleeve, marking compound and brush.
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    Yukon Gear – Super Carrier Shim Kit For Ford 8.8", GM 12 Bolt Car & Truck, 8.6 & Vette (Part No.55002)

    Super Carrier Shim Kit For Ford 8.8", GM 12 Bolt Car & Truck, 8.6 & Vette

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    $59.99
    Product Features:
    • Super carrier shim kit for Ford 8.8″, GM 12 bolt passenger car and truck, GM 8.0″, 8.6″, 8.6″ IRS and 1963-1979 Corvette
    • Interlocking design makes installation much easier
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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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    Yukon Gear – High Performance Ring & Pinion Gear Set For Ford 8.8" In A 4.56 Ratio (Part No.24098)

    High Performance Ring & Pinion Gear Set For Ford 8.8" In A 4.56 Ratio

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    $369.99
    Yukon Ring & Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of conditions. Whether it’s on the street, off-road, or at the track; Yukon ring & pinion sets deliver unrivaled performance & quality. Yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up. All Yukon ring & pinion sets come standard with a one-year warranty. A notched cross pin shaft is required for this gear set.

    Product Features:
    • Fits standard rotation Ford 8.8″
    • 8.80″ ring gear diameter
    • 30 spline pinion
    • 10 ring gear bolts
    • 4.56 ratio
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    National – Multi Purpose Seal (Part No.7044NA)

    Multi Purpose Seal

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    $15.79
    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:
    • Low swell in hydrocarbon fluids
    • Design type: spring loaded; multi-lip
    • Provides good low temperature capability
    • Temperature range: -40°F to 225°F; -40°C to 107°C
    • Delivers quality and reliable performance for every type of repair
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    Pro-King – Differential Cross Shaft (Part No.742G930)

    Differential Cross Shaft

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    $2.79
    Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

    Product Features:
    • All products are designed to meet or exceed OE quality, form, fit and funtion.
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    Yukon Gear – 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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    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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    Driveworks – Tapered Roller Bearing (Part No.S-HM-89443)

    Tapered Roller Bearing

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    $20.29
    Product Features:
    • Brand may vary by location
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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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    Motive Gear – Axle Shaft (Part No.MG1231)

    Axle Shaft

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    $143.99
    The Motive Gear replacement axle shaft offers an OE-quality axle shaft at a fraction of the OE cost. Manufactured from 1541H material on high-tolerance CNC equipment, this axle shaft is designed to provide a perfect fit every time.

    Product Features:
    • AXLE SHAFT 8.8″ 28 SPL. 29 1/4″ 79-93 MUSTANG L & R
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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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    Felpro – Differential Cover Gasket (Part No.RDS 55081)

    Differential Cover Gasket

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    $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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    Motive Gear – Differential Gear Install Kit (Part No.F7.5IK)

    Differential Gear Install Kit

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    $35.49


    Product Features:
    • MINI INSTALL KIT FORD 7.5
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    Yukon Gear – Pinion Nut (Part No.33154)

    Pinion Nut

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    $7.99
    Pinion nut for Ford 7.5″, 8″, 8.8″, 9 3/8″ & 9″. 1 1/6″ socket, 3/4″ x 20 thread.

    Product Features:
    • Pinion nut for Ford 7.5″, 8″ and 9″
    • 3/4″ x 20 thread
    • 1 1/6″ socket
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    Yukon Gear – Side Gear And Thrust Washer (0.750" Shaft) For 8.8" Ford (Part No.33298)

    Side Gear And Thrust Washer (0.750" Shaft) For 8.8" Ford

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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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    Yukon Gear – Copper Washer For Ford 9" & 8" Dropout Housing (Part No.32339)

    Copper Washer For Ford 9" & 8" Dropout Housing

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    $5.99
    Product Features:
    • Copper washer
    • Fits Ford 8″ and 9″
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    Yukon Gear – Mini Spool For Ford 8.8" With 31 Spline Axles (Part No.32226)

    Mini Spool For Ford 8.8" With 31 Spline Axles

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    $194.99
    Mini Spool for Ford 8.8″ with 31 spline axles and 7/8″ cross pin. 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 8.8″ with 31 spline axles
    • Provides 100% traction to both wheels at all times
    • Installs into standard open carrier case
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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"

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    $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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    1979 Mercury Capri Differentials

    Maybe you’re in the middle of a full rebuild of that 1979 Mercury Capri. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 173 different Differentials in our inventory ranging from $0.99 to $1,099.99. That means you can find the exact parts or products you need to keep that 1979 Mercury Capri 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 Mercury Capri. 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 Mercury Capri, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 650 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 Mercury Capri 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 Mercury Capri Last

    Simple repair, complete replacement, or a full rebuild. No matter the job, your 1979 Mercury Capri 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 Capri 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 Mercury Capri, our most popular Powertrax Differentials include:
    Lock Right Locker
    from $444.99
    (1)
    Lock Right Locker
    Differential Open Unit and Components

    Top 1979 Mercury Capri Differentials from National

    National products are another trusted brand when it comes to Differentials for your 1979 Mercury Capri. 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 Mercury Capri Differentials

    What are the most purchased Differentials for the 1979 Mercury Capri?

    Out of 173 Differentials for the 1979 Mercury Capri, 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 Mercury Capri Differentials?

    Top-rated Differentials for your 1979 Mercury Capri 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.”