1978 AMC Concord Differentials

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Keep Your 1978 AMC Concord in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1978 AMC Concord 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 Bearings, and Differential Oil. 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 Driveworks. For example, National Differentials start at just $11.99 with an average 4.3 star rating. Motive Gear and Driveworks offer similar pricing and quality, backed by strong customer feedback. With over 2,500 reviews and a solid 5 star average, you can shop with confidence knowing other AMC Concord 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 1978 AMC Concord in peak condition, inside and out.

Essential 1978 AMC Concord Differentials

Yukon Gear – 8.75" Chrysler & 55P Chevy Power Lok Clutches, Model 20 Also, Posi (Part No.16148)

8.75" Chrysler & 55P Chevy Power Lok Clutches, Model 20 Also, Posi

from

$275.99
8.75″ Chrysler & 55P Chevy Power Lok clutches, Model 20 also, POSI.

Product Features:
  • Clutch kit
  • Fits Chrysler 8.75″, 1955-1964 GM passenger car and AMC Model 20 Powr Lok positraction
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Yukon Gear – The Carrier Bearing Puller (Part No.56072)

The Carrier Bearing Puller

from

$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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USA Standard Gear – Bearing Kit For Amc Model 20 (Part No.58053)

Bearing Kit For Amc Model 20

from

$205.99
This kit uses Koyo 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. USA Standard Gear 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 AMC Model 20
  • Uses Koyo bearings and races
  • Included are carrier bearings and races, pinion bearings and races, pinion seal, pinion nut, crush sleeve, marking compound and brush.
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Powertrax – Lock Right Locker (Part No.1710-LR)

Lock Right Locker

from

$368.99
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!
  • See More

    Yukon Gear – Replacement Carrier Shim Kit For Dana Spicer 44, 30 Spline Axles (Part No.55010)

    Replacement Carrier Shim Kit For Dana Spicer 44, 30 Spline Axles

    from

    $15.99
    Product Features:
    • Carrier shim kit for Dana Spicer 30 with 30 spline axles
    See More

    Yukon Gear – High Performance Ring & Pinion Gear Set For Model 20 In A 3.31 Ratio (Part No.24521)

    High Performance Ring & Pinion Gear Set For Model 20 In A 3.31 Ratio

    from

    $469.99
    Yukon Ring & Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of conditions. Whether it’s on the street, off-road, or at the track; Yukon ring & pinion sets deliver unrivaled performance & quality. Yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up. All Yukon ring & pinion sets come standard with a one-year warranty.

    Product Features:
    • Fits AMC Model 20
    • 8.875″ ring gear diameter
    • 28 spline pinion
    • 8 ring gear bolts
    • 3.31 ratio
    See More

    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
    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
    See More

    Felpro – Axle Housing Cover Gasket (Part No.RDS 13889)

    Axle Housing Cover Gasket

    from

    $12.49
    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
    • 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
    See More

    Motive Gear – Differential Pinion Seal (Part No.470331N)

    Differential Pinion Seal

    from

    $17.49
    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!
    See More

    Yukon Gear – Ppinion Nut 7/8-20 Thread, 1 1/8 Socket (Part No.33146)

    Ppinion Nut 7/8-20 Thread, 1 1/8 Socket

    from

    $10.99
    Replacement pinion nut for Model 20 & 35, Dana 30 JK, 44 JK front, Ford 10.25″, 10.5″ & some 9.75″. 7/8-20 thread, 1 1/8 socket.

    Product Features:
    • Pinion nut for Jeep JK front, Jeep Liberty front, Ford 9.75″, 10.25″, 10.5″ and AMC Model 20 and Model 35
    • 7/8″ x 20 thread
    • 1 1/8″ socket
    See More

    Yukon Gear – 0.260" Diameter Cross Pin Roll Pin For 8.75" Chrysler, 8", 9" Ford, And Model 20 And 35 (Part No.33334)

    0.260" Diameter Cross Pin Roll Pin For 8.75" Chrysler, 8", 9" Ford, And Model 20 And 35

    from

    $5.99
    0.260″ diameter cross pin roll pin for 8.75″ Chrysler, 8″, 9″ Ford, and Model 20 and 35.

    Product Features:
    • Roll pin for Chrysler 8.75″, Ford 8″ and 9″, AMC Model 20 and Model 35
    • 0.260″ diameter
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    Schaeffler – Bearing – TRB (Tapered Roller Bearing) (Part No.KT5)

    Bearing - TRB (Tapered Roller Bearing)

    from

    $21.29
    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

    Driveworks – Camshaft Seal (Part No.S-99139)

    Camshaft Seal

    from

    $23.99
    Product Features:
    • Brand may vary by location
    See More

    Yukon Gear – Carrier Installation Kit For Amc Model 35 Differential (Part No.57011)

    Carrier Installation Kit For Amc Model 35 Differential

    from

    $98.99
    Yukon Carrier installation kits are great, low cost kit for carrier changes such as Positraction or locker upgrades. Carrier installation kit for AMC Model 35 differential. This kit contains carrier bearings, races and shims.

    Product Features:
    • Fits AMC Model 35 with 27 spline axles
    • Includes carrier bearings and races and “super” carrier shim kit
    See More

    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

    from

    $5.99
    Product Features:
    • Side gear thrust washer for Ford 8″, Ford 9″ and AMC Model 20
    • 0.030″ thick
    See More

    USA Standard Gear – Spartan Locker For Model 35 With 27 Spline Axles And A 1560" Carrier, Includes Heavy-Duty Cross Pin (Part No.17007)

    Spartan Locker For Model 35 With 27 Spline Axles And A 1560" Carrier, Includes Heavy-Duty Cross Pin

    from

    $659.99
    The Spartan Locker, by USA Standard Gear, provides reliable traction at a low cost. Give your vehicle great traction and save some cash. Choose a Spartan Locker for better traction. The Spartan locker by USA standard gear is a mechanical locker that replaces the spiders in a standard case. The Spartan locker’s design does not use the thrust washers and has a revolutionary spring and pin design that makes installation a snap! The couplers and drivers are made from 9310 steel, for added strength. Each Spartan locker carries a one year warranty against defect.

    Product Features:
    • Fits AMC Model 35 with 27 spline axles and 1.560″ side gear bore
    • Made from 9310 steel for added strength
    • Replaces the spiders in a standard carrier case
    See More

    Yukon Gear – Standard Open Carrier Case & Spiders, Amc Model 35, 3.54 & Up (Part No.20061)

    Standard Open Carrier Case & Spiders, Amc Model 35, 3.54 & Up

    from

    $599.99
    Model 35 standard Open carrier loaded, 3.54 & up + 3.27, complete, (No bearings or shims).

    Product Features:
    • Standard open carrier case and spiders
    • Fits AMC Model 35
    • 3.54 and up ratio only
    See More

    Yukon Gear – Bearing Race Driver (Part No.56022)

    Bearing Race Driver

    from

    $188.99
    Bearing race driver. No return.

    Product Features:
    • Bearing race driver
    • Fits M86610 race
    • All steel construction
    See More

    Yukon Gear – Crush Sleeve (Part No.33085)

    Crush Sleeve

    from

    $9.99
    Crush Sleeve for Model 20, Ford 10.25″, 10.5″, 7.5″, 8.8″, 9 3/8″, 9″ & 9.75″. .480″ long.

    Product Features:
    • Crush sleeve for AMC Model 20, Ford 10.25″, 10.5″, 7.5″, 8.8″, 9″ and 9.75″
    • 0.480″ tall
    See More

    Yukon Gear – Model 35 (Standard Open & Tracloc) 8.25" Chrysler Tracloc Cross Pin Bolt (Part No.33230)

    Model 35 (Standard Open & Tracloc) 8.25" Chrysler Tracloc Cross Pin Bolt

    from

    $13.99
    Model 35 (standard Open & TracLoc) 8.25″ Chrysler TracLoc cross pin bolt.

    Product Features:
    • Cross pin bolt for AMC Model 35 with c-clip axles
    See More

    Motive Gear – Differential Gear Install Kit (Part No.AM20IK)

    Differential Gear Install Kit

    from

    $52.79
    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!
    See More

    Yukon Gear – Model 35 Standard Open Pinion Gear Thrust Washer (Part No.33291)

    Model 35 Standard Open Pinion Gear Thrust Washer

    from

    $10.99
    Product Features:
    • Pinion gear thrust washer
    • Fits AMC Model 35
    • 0.685″ I.D.
    • With step
    See More

    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

    Yukon Gear – Minor Install Kit For Model 35 Differential (Part No.12067)

    Minor Install Kit For Model 35 Differential

    from

    $186.99
    Yukon Minimum installation kits are a low cost solution for gear changes in newer vehicles where the bearings can be reused. This kit uses all high quality components to ensure a smooth set up. kit includes a pinion seal, crush sleeve (if applicable), complete shim kit, marking compound and brush.

    Product Features:
    • Fits AMC Model 35
    • Included are a pinion seal, crush sleeve, complete shim kit, marking compound and brush.
    See More

    Yukon Gear – Trail Repair Kit For Model 35 With 1310 Size U/Joint And Straps (Part No.32287)

    Trail Repair Kit For Model 35 With 1310 Size U/Joint And Straps

    from

    $221.99
    Yukon trail repair kit for Model 35 with 1310 size U/joint and straps. This kit comes with a yoke, U/joint, pinion seal, U/bolt or strap kit, pinion nut, and pinion nut washer (if applicable).

    Product Features:
    • Fits AMC Model 35
    • 1310 u-joint size
    • Kit includes yoke, U-joint, pinion seal, pinion nut and washer, straps, bolts and threadlocker
    See More

    Yukon Gear – Pinion Depth Shims For GM 8.25" IFS, 8.5", 12 Bolt Car, Ford 8.8" & Chrysler 8.25" (Part No.55009)

    Pinion Depth Shims For GM 8.25" IFS, 8.5", 12 Bolt Car, Ford 8.8" & Chrysler 8.25"

    from

    $27.99
    8.25″ IFS, 8.5″, 12P, 7.5″ F, 8.8″ F, 8.25″ Chrysler pinion shim kit.

    Product Features:
    • Pinion depth shims for GM 8.25″ IFS, 8.5″, 8.6″, 12 bolt passenger car, Ford 7.5″ and 8.8″, Chrysler 8.25″
    See More

    Felpro – Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket (Part No.RDS 13089)

    Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket

    from

    $8.29
    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
    See More

    Yukon Gear – Pinion Install Kit For Model 35 Differential (Part No.13083)

    Pinion Install Kit For Model 35 Differential

    from

    $215.99
    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, pinion nut, 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 AMC Model 35 rear
    • Included are pinion bearings and races, pinion seal, crush sleeve , complete pinion shim kit, and marking compound with brush.
    See More

    Most Popular Rear Differential Cover Gasket for 1978 AMC Concords

    Enhance your 1978 AMC Concord with this popular Rear Differential Cover Gasket we have in stock, for $11.99.

    Yukon Gear – Model 35 Cover Gasket (Part No.23026)

    Model 35 Cover Gasket

    from

    $11.99
    Model 35 cover gasket.

    Product Features:
    • Cover gasket
    • Fits AMC Model 35
    See More

    Best-Selling 1978 AMC Concord Differential Bearings

    Upgrade your Concord with one of our 5 best-selling Differential Bearings, earning an average 4.67 stars rating across 29 reviews.

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

    Multi-Purpose Bearing

    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
    See More

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

    Taper Bearing Cone

    from

    $10.99
    Value-priced bearing meets all cataloged application requirements.

    Product Features:
    • Brand may vary by location
    See More

    National – Multi-Purpose Bearing (Part No.A-36)

    Multi-Purpose Bearing

    from

    $27.99
    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

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

    Bearing - TRB (Tapered Roller Bearing)

    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
    See More

    Schaeffler – Bearing – TRB (Tapered Roller Bearing) (Part No.KT5)

    Bearing - TRB (Tapered Roller Bearing)

    from

    $21.29
    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

    Top-Quality Differential Oil for 1978 AMC Concords

    Choose a high-quality OEM or aftermarket Differential Oil for AMC Concords and enjoy top-notch performance from $35.99.

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

    MaxLife Multi-Vehicle Automatic Transmission Fluid, 1 Gallon

    from

    $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
    See More

    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
    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
    See More

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

    3 Qt - Penzoil 80W90 Conventional Gear Oil

    from

    $44.99
    3 Qt. Penzoil 80W90 conventional gear Oil.

    Product Features:
    • Includes three quarts of conventional oil
    See More

    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 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
    See More

    Yukon Gear – Redline Synthetic "Shock Proof" Oil – 3 Quarts (Part No.15000)

    Redline Synthetic "Shock Proof" Oil - 3 Quarts

    from

    $99.99
    Redline Synthetic “Shock Proof” Oil. 3 Quarts.

    Product Features:
    • Includes three quarts of Redline Shockproof oil
    See More

    Yukon Gear – Redline Synthetic "Shock Proof" Oil – 4 Quarts (Part No.15004)

    Redline Synthetic "Shock Proof" Oil - 4 Quarts

    from

    $137.99
    Redline Synthetic “Shock Proof” Oil. 4 Quarts.

    Product Features:
    • Includes four quarts of Redline Shockproof oil
    See More

    Top Picks for 1978 AMC Concord Differential Covers

    Invest in one of our 4 durable Differential Covers for your 1978 AMC, knowing you’re getting trusted brands and expert craftsmanship.

    Yukon Gear – Finned Polished Aluminum Cover For Amc Model 20 (Part No.32031)

    Finned Polished Aluminum Cover For Amc Model 20

    from

    $269.99
    Finned Polished aluminum cover for AMC Model 20.

    Product Features:
    • Fits AMC Model 20
    • Finned polished aluminum
    See More

    Yukon Gear – Steel Cover For Amc Model 35, With Metal Fill Plug (Part No.32335)

    Steel Cover For Amc Model 35, With Metal Fill Plug

    from

    $76.99
    Product Features:
    • Fits AMC Model 35
    • Steel
    • Metal fill plug
    See More

    Yukon Gear – Chrome Cover For Amc Model 20 (Part No.32019)

    Chrome Cover For Amc Model 20

    from

    $74.99
    Chrome cover for AMC Model 20.

    Product Features:
    • Fits AMC Model 20
    • Chrome
    See More

    Yukon Gear – Chrome Cover For Model 35 (Part No.32020)

    Chrome Cover For Model 35

    from

    $59.99
    Chrome cover for Model 35.

    Product Features:
    • Fits AMC Model 35
    • Chrome
    See More

    Our Top-Rated Rear Housing Cover Gaskets for 1978 AMC Concords

    Make a smart move for your 1978 AMC Concord with our Rear Housing Cover Gasket for $8.29.

    Felpro – Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket (Part No.RDS 13089)

    Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket

    from

    $8.29
    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
    See More

    Top-Rated Differential Brands For Your 1978 AMC Concord

    When it comes to finding the perfect Differential for your 1978 AMC Concord, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 10 trusted brands. We carry the most popular Differential brands including National, Driveworks, and Motive Gear, and more, all known for their exceptional customer ratings (average brand rating of 4.3 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 1978 AMC Concord, providing peace of mind with parts that meet or exceed OEM standards.

    Popular National 1978 AMC Concord Differentials

    If you’re looking for a top-quality Differential for your 1978 AMC Concord, Advance Auto Parts has exactly what you need with our selection of National Differentials. We have 3 National Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $11.99 and an average cost of $15.66, you’ll find the perfect Differential for your needs and budget. National Differentials for the 1978 AMC Concord come highly rated, with over 34 customer reviews and an impressive average rating of 4.3 stars. Choosing a National Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
    Multi-Purpose Bearing
    from $16.99
    (25)
    Multi-Purpose Bearing
    “Smooth”
    Multi-Purpose Bearing
    from $17.99
    (7)
    Multi-Purpose Bearing
    “Comparable with the Timkens I removed. NATIONAL bearings have lasted decades in many of my other machines.”
    Bearing Race
    from $11.99
    (2)
    Bearing Race
    “Reasonable price and woks well. front diff 2006 Escalade esv”

    Top-Quality Driveworks 1978 AMC Concord Differentials

    For those in search of a high-quality Differential for their 1978 AMC Concord, Advance Auto Parts offers a great selection of Driveworks Differentials. With 1 Driveworks 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 $10.99, giving you a range of options to suit your budget. Backed by over 3 customer ratings and an average rating of 4.2 stars, Driveworks Differentials provide both reliability and excellent performance. Choosing a Driveworks Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
    Taper Bearing Cone
    from $10.99
    (3)
    Taper Bearing Cone
    “Worked for my 2006 escalade esv front diff”

    FAQs for 1978 AMC Concord Differentials

    What are the best-selling Differentials for 1978 AMC Concords?

    Out of 149 Differentials that fit 1978 AMC Concords, the following parts are the top sellers:

    What’s the price range for 1978 AMC Concord Differentials?

    The prices of Differentials for the 1978 AMC Concord range from $1.99 up to $1,566.99 for the most premium parts.

    What is the average price of a Differential for a 1978 AMC Concord?

    The average price for Differentials for the 1978 AMC Concord is $202.69. 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 AMC Concord model years?

    Yes, we carry Differentials for 4 model years of AMC Concords between 1979 and 1983. The following model years are the most popular for Differential purchases: 1983, 1982, 1981, 1980, and 1979.

    What are the cheapest Differentials for my 1978 AMC Concord?

    The cheapest 1978 AMC Concord Differentials we carry are:

    Does Advance Auto Parts sell Differentials for any other 1978 AMC models?

    Yes. We stock Differentials for 3 other popular 1978 AMC models. Some of the most popular are 1978 Gremlin Differentials, 1978 AMX Differentials, 1978 Pacer Differentials, and 1978 Matador Differentials.

    What are the top-rated Differentials that fit the 1978 AMC Concord?

    The one 1978 AMC Concord Differential we have in stock is the Ring Gear Bolt. It costs $1.99.

    What types of Differentials do you sell for my 1978 AMC Concord?

    As of 3/1/26, these are some of the most in-demand types of Differentials for a 1978 AMC Concord:

    Can I get help with 1978 AMC Concord Differential orders?

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

    What is your return policy for AMC Concord Differentials?

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