1978 AMC Pacer Differentials

Keep Your 1978 AMC Pacer 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 Pacer looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Bearings, Differential Covers, and Rear Differential Cover Gaskets. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Differentials from Trusted Brands

Looking for a reliable Differential? We’ve got you covered with options from brands you know and trust like Motive Gear, National, and FELPRO. For example, Motive Gear Differentials start at just $2.99 with an average 4.0 star rating. National and FELPRO offer similar pricing and quality, backed by strong customer feedback. With over 256 reviews and a solid 4 star average, you can shop with confidence knowing other AMC Pacer owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1978 AMC Pacer Differential at Advance Auto Parts is around $187.05, with a range that starts at $1.99 and goes up to $1,286.99. With 163 options in stock from 10 trusted brands, finding the right fit is easy. Popular picks like Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket, Replacement Ring Gear Bolt For Model 35, Dana 25, 27, 30 & 44 – 3/8" X 24, and Dana 25, 27, 30, 44, Model 20 And Model 35, GM 7.5", 8.2", 8.5", 12P, 12T, C9.25 Rear Cover Bolt start at just $8.29 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Differential, don’t forget to check out other key components like Drive Shafts and Axles and Universal Joints. At Advance Auto Parts, we’re here to help you keep your 1978 AMC Pacer in peak condition, inside and out.

Essential 1978 AMC Pacer Differentials

Yukon Gear – Positraction Internals For Model 35 With 27 Spline Axles (Part No.16130)

Positraction Internals For Model 35 With 27 Spline Axles

from

$462.99
Yukon positraction internals for Model 35 with 27 spline axles. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. This kit includes clutches. All components come with a one year warranty against manufacturing defects.

Product Features:
  • Spider gear kit
  • Fits AMC Model 35 Trac Loc positraction
  • Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt, clutches, and spider gear thrust washers.
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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
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USA Standard Gear – Standard Spider Gear Set For Amc Model 35 With 1.560" Side Gear Bore (Part No.39030)

Standard Spider Gear Set For Amc Model 35 With 1.560" Side Gear Bore

from

$172.99
USA Standard Gear standard spider gear set for AMC Model 35 with 1.560″ side gear bore. (used in ’94 and newer models).

Product Features:
  • Fits AMC Model 35 with open differential and 1.560″ side gear bore
  • Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.
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Yukon Gear – Model 35 Roll Pin For Cross Pin Shaft, 0.190" Diameter (Part No.33320)

Model 35 Roll Pin For Cross Pin Shaft, 0.190" Diameter

from

$5.99
Model 35 roll pin for cross pin shaft, 0.190″ DIA.

Product Features:
  • Roll pin
  • Fits AMC Model 35
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

National – Multi-Purpose Bearing (Part No.A-5)

Multi-Purpose Bearing

from

$16.99
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

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

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

Yukon Gear – Standard Open Carrier Case & Spiders, Amc Model 35, 3.54 & Up (Part No.20062)

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

from

$549.99
Model 35 standard Open carrier loaded, 3.54 & up + 3.27, 1-5/8″ tall, complete, w/ bearings.

Product Features:
  • Standard open carrier case and spiders
  • Fits AMC Model 35
  • 3.54 and up ratio only
  • Includes ring gear bolts, carrier bearings and races, and roll pin
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Yukon Gear – Bearing Race Driver (Part No.56023)

Bearing Race Driver

from

$219.99
Bearing race driver. No return.

Product Features:
  • Bearing race driver
  • Fits M88010 race
  • All steel construction
See More

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
See More

Yukon Gear – Super Carrier Shim Kit For Model 35 (Part No.55063)

Super Carrier Shim Kit For Model 35

from

$54.99
Model 35 differential carrier Supershim kit.

Product Features:
  • Super carrier shim kit for AMC Model 35
  • Interlocking design makes installation much easier
See More

Yukon Gear – Long Yoke For Model 35 With A 1330 U/Joint Size (Part No.41099)

Long Yoke For Model 35 With A 1330 U/Joint Size

from

$242.99
Yukon long yoke for Model 35 with a 1330 U/joint size. 3.625″ snap ring span, 1.062″ cap diameter. Outside snap ring. This yoke uses straps. Not common. All Yukon yokes come with a one year warranty against manufacturing defects.

Product Features:
  • Fits AMC Model 35
  • 26 spline
  • 1330 u-joint size
  • Outside snap ring design
  • 3.625″ snap ring span
  • 1.062″ cap diameter
  • Strap style
See More

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

Yukon Gear – Pinion Seal For Model 20 And Model 35 (Part No.30079)

Pinion Seal For Model 20 And Model 35

from

$9.99
Pinion seal for Model 20 and Model 35.Yukon Mighty seal.

Product Features:
  • Pinion seal
  • Fits AMC Model 20 and AMC Model 35
See More

Motive Gear – Ring Gear Bolt (Part No.D8OZ4216B)

Ring Gear Bolt

from

$1.99


Product Features:
  • BOLT 9″ FORD OPEN R.G. SAME AS M-4216A200
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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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Yukon Gear – Set Up Bearing (Part No.56045)

Set Up Bearing

from

$153.99
M802048 set-up bearing (one bearing). No return.

Product Features:
  • Set up bearing
  • Fits M802048 pinion bearing
  • Easily slips on and off pinion journal to allow for easier pinion depth adjustment
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Powertrax – No-Slip Traction System (Part No.9201202900)

No-Slip Traction System

from

$522.99
For vehicles that are driven daily, the Powertrax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Powertrax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!The Powertrax® Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Powertrax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.
  • Powertrax® lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.
  • Powertrax® offers three levels of GRIP locking differentials, ranging from the clutch-type GRIP LS with a forged steel case, the gear-driven GRIP PRO and finally the GRIP LOK for extreme traction.
  • Powertrax® = Extreme Traction Systems!
  • See More

    Yukon Gear – Master Overhaul Kit For Model 20 Differential (Part No.14108)

    Master Overhaul Kit For Model 20 Differential

    from

    $334.99
    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 AMC Model 20
    • Included are Timken bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve , thread locker, marking compound with brush, and gasket.
    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

    Motive Gear – Differential Ring and Pinion (Part No.D35-411)

    Differential Ring and Pinion

    from

    $196.99


    Product Features:
    • DANA-35 R/P 4.11 STD
    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 25, 27, 30, 44, Model 20 And Model 35, GM 7.5", 8.2", 8.5", 12P, 12T, C9.25 Rear Cover Bolt (Part No.33286)

    Dana 25, 27, 30, 44, Model 20 And Model 35, GM 7.5", 8.2", 8.5", 12P, 12T, C9.25 Rear Cover Bolt

    from

    $9.99
    5/16″-18 cover bolt, Dana Spicer 25, 27, 30 and 44, AMC Model 20 and Model 35, Chrysler 9.25 rear, GM 7.5″, 7.625″, 8.2″, 8.5″, 12 bolt passenger car and truck.

    Product Features:
    • Cover bolt for Dana Spicer 25, 27, 30 and 44, AMC Model 20 and Model 35, GM 7.5″, 7.625″, 8.2″, 8.5″ and 12 bolt passenger car and truck.
    • 1/2″ head
    See More

    Yukon Gear – Replacement Pinion Depth Shims For Dana 35, Model 35 & Chrysler 7.25" (Part No.55014)

    Replacement Pinion Depth Shims For Dana 35, Model 35 & Chrysler 7.25"

    from

    $17.99
    Yukon 1541H alloy right hand rear axle for Model 35 (drum brakes) with a 54 tooth, 2.7″ ABS ring. axle has a length of 29-1/4″ inches and 27 splines. Yukon 1541H alloy axles offer a strength increase over stock while retaining a low cost. Yukon 1541H allo

    Product Features:
    • Pinion depth shims for AMC Model 35 and Chrysler 7.25″
    See More

    Yukon Gear – Pinion Install Kit For Model 20 Differential (Part No.13082)

    Pinion Install Kit For Model 20 Differential

    from

    $175.99
    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 AMC Model 20
    • Included are pinion bearings and races, pinion seal, crush sleeve, complete pinion shim kit, and marking compound with brush.
    See More

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

    Pinion Gear And Thrust Washer For 8" And 9" Ford, Model 20, And 7.25" Chrysler

    from

    $4.99
    Pinion gear thrust washer for 8″ and 9″ Ford, Model 20, and 7.25″ Chrysler.

    Product Features:
    • Pinion gear thrust washer for Ford 8″, Ford 9″ and Chrysler 7.25″
    See More

    Motive Gear – Differential Ring and Pinion (Part No.D35-355)

    Differential Ring and Pinion

    from

    $188.99


    Product Features:
    • DANA-35 R/P 3.55 RATIO
    See More

    Most Popular Differential Bearings for 1978 AMC Pacers

    Enhance your 1978 AMC Pacer with one of the 10 Differential Bearings we have in stock, starting at just $4.49.

    National – Bearing Race (Part No.LM501314)

    Bearing Race

    from

    $9.29
    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

    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

    National – Tapered Roller Bearing Cone (Part No.LM501349)

    Tapered Roller Bearing Cone

    from

    $19.99
    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
    See More

    National – Bearing Race (Part No.LM67010)

    Bearing Race

    from

    $4.49
    National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

    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

    FAG US – Cone (Part No.KM86649)

    Cone

    from

    $24.29
    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

    FAG US – 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

    FAG US – Bearing – TRB (Tapered Roller Bearing) (Part No.KT17)

    Bearing - TRB (Tapered Roller Bearing)

    from

    $19.49
    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

    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

    FAG US – Cup (Part No.M88010)

    Cup

    from

    $11.29
    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

    FAG US – Cup (Part No.LM67010)

    Cup

    from

    $6.69
    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

    Best-Selling 1978 AMC Pacer Differential Covers

    Upgrade your Pacer with one of our 4 best-selling Differential Covers.

    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

    Top-Quality Rear Differential Cover Gaskets for 1978 AMC Pacers

    Choose a high-quality OEM or aftermarket Rear Differential Cover Gasket for AMC Pacers and enjoy top-notch performance from $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

    Our Top Pick for a 1978 AMC Pacer Rear Housing Cover Gasket

    Invest in a durable Rear Housing Cover Gasket for your 1978 AMC, knowing you’re getting trusted brands and expert craftsmanship.

    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

    Differential Oil for 1978 AMC Pacers

    Make a smart move for your 1978 AMC Pacer with products all priced from $99.99 to $148.99.

    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-Rated Differential Brands For Your 1978 AMC Pacer

    When it comes to finding the perfect Differential for your 1978 AMC Pacer, 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 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 $2.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1978 AMC Pacer, providing peace of mind with parts that meet or exceed OEM standards.

    Popular FELPRO 1978 AMC Pacer Differentials

    If you’re looking for a top-quality Differential for your 1978 AMC Pacer, 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 $8.29, you’ll find the perfect Differential for your needs and budget. FELPRO Differentials for the 1978 AMC Pacer come highly rated, with over 12 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.
    Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket
    from $8.29
    (12)
    Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket
    “Quality seal. Very pliable and fit perfectly.”

    Top-Quality National 1978 AMC Pacer Differentials

    For those in search of a high-quality Differential for their 1978 AMC Pacer, 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 $7.99, with an average price of $11.42, giving you a range of options to suit your budget. Backed by over 45 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 Bearing
    from $16.99
    (39)
    Multi-Purpose Bearing
    “Great bearings”
    Bearing Race
    from $9.29
    (2)
    Bearing Race
    “Reasonable price and woks well. front diff 2006 Escalade esv”
    Bearing Race
    from $7.99
    (4)
    Bearing Race
    “Goes with M88010 bearing cup. Application was the pinion bearing race for a Ford 9 Inch on a 1957 Ford F-100.”

    FAQs for 1978 AMC Pacer Differentials

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

    Out of 163 Differentials that fit 1978 AMC Pacers, the following parts are the top sellers:

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

    The prices of Differentials for the 1978 AMC Pacer range from $1.99 up to $1,286.99 for the most premium parts.

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

    The average price for Differentials for the 1978 AMC Pacer is $187.05. 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 Pacer model years?

    Yes, we carry Differentials for 4 model years of AMC Pacers between 1975 and 1980. The following model years are the most popular for Differential purchases: 1980, 1979, 1977, 1976, and 1975.

    What are the cheapest Differentials for my 1978 AMC Pacer?

    The cheapest 1978 AMC Pacer 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 Matador Differentials, and 1978 Concord Differentials.

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

    As of 11/2/25, these are some of the most in-demand types of Differentials for a 1978 AMC Pacer:

    Can I get help with 1978 AMC Pacer 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 Pacer Differentials?

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