1978 Dodge Magnum Differentials

Keep Your 1978 Dodge Magnum in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1978 Dodge Magnum looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Pinion Seals, Differential Oil, 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 National, Motive Gear, and FELPRO. For example, National Differentials start at just $7.99 with an average 4.3 star rating. Motive Gear and FELPRO offer similar pricing and quality, backed by strong customer feedback. With over 539 reviews and a solid 4 star average, you can shop with confidence knowing other Dodge Magnum owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1978 Dodge Magnum Differential at Advance Auto Parts is around $205.10, with a range that starts at $2.29 and goes up to $1,080.99. With 159 options in stock from 11 trusted brands, finding the right fit is easy. Popular picks like Ring Gear Bolt, Bearing Race, and Multi-Purpose Bearing start at just $2.99 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 Dodge Magnum in peak condition, inside and out.

Essential 1978 Dodge Magnum Differentials

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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Yukon Gear – Pinion Install Kit For Chrysler 7.25" Differential (Part No.13001)

Pinion Install Kit For Chrysler 7.25" Differential

from

$223.99
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 Chrysler 7.25″
  • Included are pinion bearings and races, pinion seal, crush sleeve, complete pinion shim kit, and marking compound with brush.
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USA Standard Gear – Chrysler 8.25" Spartan Locker Cross Pin Shaft (Part No.17035)

Chrysler 8.25" Spartan Locker Cross Pin Shaft

from

$49.99
Product Features:
  • USA Standard Gear heavy-duty cross pin shaft
  • Fits Chrylser 8.25″ with 27 and 29 spline axles
  • Works with Spartan Locker or standard open spider gears
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Yukon Gear – 8.25" Chrysler Cover Gasket (Part No.23000)

8.25" Chrysler Cover Gasket

from

$12.99
8.25″ Chrysler cover gasket.

Product Features:
  • Cover gasket
  • Fits Chrysler 8.25″
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Powertrax – No-Slip Traction System (Part No.9203923105)

No-Slip Traction System

from

$557.99
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

    Dorman – Differential Pinion Yoke Assembly (Part No.697-541)

    Differential Pinion Yoke Assembly

    from

    $234.99
    A worn or damaged differential pinion flange can lead to driveline vibrations and fluid leaks. This part is designed to match the performance of the original equipment pinion flange on specified vehicles. It has been engineered to help restore a secure and reliable connection between the differential pinion and the drive shaft when the original flange is rusted, worn or damaged. It is made of rugged materials for reliable service and durability.

    Product Features:
    • Direct replacement – this differential pinion flange is designed to match the performance of the original equipment flange on specified vehicles
    • Ideal solution – engineered to help restore a secure and reliable connection between the differential pinion and the drive shaft when the original flange is worn or damaged
    • Durable construction – designed and manufactured to strict specifications for reliable performance
    • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
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    Richmond Gear – Differential Gear Install Kit (Part No.83-1041-B)

    Differential Gear Install Kit

    from

    $42.99
    Richmond Gear is the leading manufacturer of professional quality, high-performance drivetrain products. Our complete line of products ranges from high performance ring-and-pinion sets for serious street and racing applications to torque-hungry manual transmissions and components. Richmond Gear products have been winners both at the Daytona 500 and U.S. Nationals for decades. WINNERS RUN RICHMOND!

    Product Features:
    • For over 80-years, the Richmond Double-Diamond logo has represented some of the highest quality gears in the racing industry. Winners Run Richmond!
    • The superior quality of Richmond gearsets is a result of outstanding design, world class manufacturing and an extensive testing process that is performed on all products.
    • Richmond performance gearsets have been winners for decades at: NHRA, NMRA, NMCA, Daytona 500, WISSOTA and U.S. Nationals.
    • Richmond Gear is a leading manufacturer of high performance ring and pinion gearsets and drivetrain components, backed by a two year warranty.
    • Engineered to perform faster and be more reliable, Richmond performance drivetrain products are the result of a continuous research and development program combined with state-of-the-art manufacturing capabilities.
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    Yukon Gear – Chrysler 9.25" Dura Grip Case, Bare (Part No.20015)

    Chrysler 9.25" Dura Grip Case, Bare

    from

    $399.99
    Product Features:
    • Dura Grip positraction carrier case
    • Does not include spider gears
    • Fits Chrysler 9.25″ rear
    See More

    Yukon Gear – Standard Open Spider Gear Kit For ’96 And Older 8.25" Chrysler With 27 Spline Axles (Part No.16002)

    Standard Open Spider Gear Kit For '96 And Older 8.25" Chrysler With 27 Spline Axles

    from

    $301.99
    Yukon standard open spider gear kit for ’96 and older 8.25″ Chrysler with 27 spline axles. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. All components come with a one year warranty against manufacturing defects.

    Product Features:
    • Spider gear kit
    • Fit Chrysler 8.25″ open differntial with 27 spline axles
    • Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.
    See More

    Motive Gear – Differential Carrier (Part No.C9.25E)

    Differential Carrier

    from

    $165.99


    Product Features:
    • CHRYS 9 1/4″ OPEN EMPTY CASE CAN USE ABS RING.
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    Yukon Gear – C198 Ring Gear Bolt (Part No.33069)

    C198 Ring Gear Bolt

    from

    $12.99
    C198 ring gear bolt.

    Product Features:
    • Ring gear bolt
    • Fits Chrysler C198
    See More

    Yukon Gear – Chrysler 9.25" And Dana 44 / 60 Tracloc Clutch Guide Replacement (Part No.33249)

    Chrysler 9.25" And Dana 44 / 60 Tracloc Clutch Guide Replacement

    from

    $8.99
    Product Features:
    • Clutch guide for Chrysler 9.25″, Dana Spicer 44 and Dana Spicer 60
    • For Trac Loc positraction applications only
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    USA Standard Gear – Spartan Spring & Pin Kit, Fits Smaller Designs (Part No.17011)

    Spartan Spring & Pin Kit, Fits Smaller Designs

    from

    $26.99
    Spartan spring & pin kit, fits smaller designs.

    Product Features:
    • Replacement spring and pin kit for Spartan Locker
    • Fits Dana 30, Dana 44, AMC Model 20, AMC Model 35, and Toyota designs
    • Includes 4 springs and 4 alignment pins
    See More

    Yukon Gear – Carrier Installation Kit For ’76 & Up Chrysler 8.25" Rear (Part No.57014)

    Carrier Installation Kit For '76 & Up Chrysler 8.25" Rear

    from

    $78.99
    Yukon Carrier installation kits are great, low cost kit for carrier changes such as Positraction or locker upgrades. Carrier installation kit for ’76 & up Chrysler 8.25″ rear.

    Product Features:
    • Fits 1976 and up Chrysler 8.25″
    • Includes carrier bearings and races
    See More

    Yukon Gear – Yoke For Chrysler 7.25" And 8.25" With A 7290 U/Joint Size (Part No.41005)

    Yoke For Chrysler 7.25" And 8.25" With A 7290 U/Joint Size

    from

    $359.99
    Yukon yoke for Chrysler 7.25″ and 8.25″ with a 7290 U/joint size. 2.625″ snap ring span. 1.125″ cap diameter. Inside snap ring. All Yukon yokes come with a one year warranty against manufacturing defects.

    Product Features:
    • Fits Chrysler 7.25″ and 8.25″
    • 27 spline
    • 7290 u-joint size
    • Inside snap ring design
    • 2.625″ snap ring span
    • 1.125″ cap diameter
    • Strap style
    See More

    Yukon Gear – Bearing Install Kit For Chrysler 7.25" Differential (Part No.11001)

    Bearing Install Kit For Chrysler 7.25" Differential

    from

    $225.99
    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 Chrysler 7.25″ rear
    • Included are carrier bearings and races, pinion bearings and races, pinion seal, crush sleeve, marking compound and brush.
    See More

    Valvoline – Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart (Part No.889785)

    Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart

    from

    $18.99
    We’ve squeezed innovation into every ounce of Valvoline FlexFill SAE 75W-90 Full Synthetic Gear Oil, the ultimate gear protection in hypoid rear differentials and non-synchronized manual transmissions. Our unique new flexible pouch makes getting into the tightest places to lubricate gears easier than ever and with less waste. The superior detergent package-based formulation contains fully synthetic basestocks and special additives that help protect parts from rust and corrosion while providing exceptional high and low temperature protection and excellent thermal stability, especially in demanding driving situations such as towing and off-roading. It contains an extreme pressure additive for better load carrying capacity, wear resistance additives that assist in protecting gear teeth, a limited slip additive for optimal clutch pack performance, and an anti-foaming agent for better lubrication and service life. Valvoline FlexFill SAE 75W-90 Full Synthetic Gear Oil is recommended for use in axle applications requiring factory-fill or drain-and-fill levels for limited slip performance.

    Product Features:
    • FLEXIBLE POUCH FOR EASIER USE WITH LESS WASTE in tight, hard to reach undercarriage situations.
    • EXCEPTIONAL HIGH AND LOW TEMPERATURE PROTECTION ranging from -30F to 300F degrees for dependable coverage year-round
    • REDUCES CHATTERING AND PROTECTS GEAR TEETH from oxidation, rust, and wear
    • MEETS THE DEMANDS OF CONVENTIONAL AND LIMITED SLIP REAR DIFFERENTIALS where API GL-5 is specified, as well as non-synchronized manual transmissions that require API GL-4 or MT-1 fluid
    • MEETS OR EXCEEDS PERFORMANCE REQUIREMENTS for Mack GO-H and GO-J; API GL-5 and API MT-1; MIL-PRF-2105E; and SAE J2360
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    Motive Gear – Differential Ring and Pinion (Part No.C9.25-410)

    Differential Ring and Pinion

    from

    $265.99


    Product Features:
    • CHRY 12BLT 9.25 R&P-4.10 RATIO
    See More

    Yukon Gear – 8.25" Chrysler Pinion Gear Thrust Washer (Part No.33273)

    8.25" Chrysler Pinion Gear Thrust Washer

    from

    $26.99
    8.25″ Chrysler pinion gear thrust washer.

    Product Features:
    • Pinion gear thrust washer
    • Fits Chrysler 8.25″
    See More

    Yukon Gear – Standard Open Spider Gear Kit For 7.25" Chrysler With 25 Spline Axles (Part No.16001)

    Standard Open Spider Gear Kit For 7.25" Chrysler With 25 Spline Axles

    from

    $234.99
    Yukon standard open spider gear kit for 7.25″ Chrysler with 25 spline axles. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. All components come with a one year warranty against manufacturing defects.

    Product Features:
    • Spider gear kit
    • Fits Chrysler 7.25″ rear with open differential
    • Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.
    See More

    Yukon Gear – Chrysler Fine Spline Pinion Nut For Chrysler 7.25", 8", 8.25", 8.75", And 9.25" (Part No.33253)

    Chrysler Fine Spline Pinion Nut For Chrysler 7.25", 8", 8.25", 8.75", And 9.25"

    from

    $26.99
    Product Features:
    • Pinion nut
    • Fits Chrysler 7.25″, 8.0″, 8.25″, 9.25″ and 8.75″ with 29 spline pinion
    See More

    Yukon Gear – Dana 44 And Chrysler 9.25" Traclloc Clutch Kit Replacement (Part No.16153)

    Dana 44 And Chrysler 9.25" Traclloc Clutch Kit Replacement

    from

    $139.99
    Dana 44 & 9.25 Chrysler TracLoc clutch kit.

    Product Features:
    • Clutch kit
    • Fits Dana Spicer 44 and Chrysler 9.25″ Trac Loc positraction
    See More

    Yukon Gear – Standard Open Notched Cross Pin Shaft For 9.25" Chrysler (Part No.33309)

    Standard Open Notched Cross Pin Shaft For 9.25" Chrysler

    from

    $84.99
    Standard Open notched cross pin shaft for 9.25″ Chrysler.

    Product Features:
    • Cross pin shaft
    • Fits Chrysler 9.25″
    • Standard open carrier only
    • Notched
    See More

    Yukon Gear – Cross Pin Bolt For 7.25" Chrysler (Part No.33231)

    Cross Pin Bolt For 7.25" Chrysler

    from

    $26.99
    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 t

    Product Features:
    • Cross pin bolt
    • Fits Chrylser 7.25″
    See More

    Yukon Gear – Differential Side Bearing Screw Adjuster For 9.25" Chrysler (Part No.33256)

    Differential Side Bearing Screw Adjuster For 9.25" Chrysler

    from

    $64.99
    Differential side bearing screw adjuster for 9.25″ Chrysler.

    Product Features:
    • Side adjuster for Chrysler 9.25″ rear
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    Yukon Gear – Bolt/Screw For Adjuster Lock For Chrysler 7.25", 8.25", 8.75", 9.25" (Part No.33233)

    Bolt/Screw For Adjuster Lock For Chrysler 7.25", 8.25", 8.75", 9.25"

    from

    $15.99
    Bolt/screw for adjuster lock for Chrysler 7.25″, 8.25″, 8.75″, 9.25″.

    Product Features:
    • Side adjuster lock bolt
    • Fits Chrysler 7.25″, 8.25″, 8.75″ and 9.25″
    See More

    Yukon Gear – Chrome Cover For Chrysler 9.25" (Part No.32001)

    Chrome Cover For Chrysler 9.25"

    from

    $73.99
    Toyota wheel seal for ’80-’97 Full float Landcruiser outer rear, ’86-’95 dually pick-up.Yukon Mighty seal.

    Product Features:
    • Fits Chrysler 9.25″ rear
    • Chrome
    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

    Most Popular Differential Pinion Seals for 1978 Dodge Magnums

    Enhance your 1978 Dodge Magnum with one of the 4 Differential Pinion Seals we have in stock, starting at just $10.99.

    National – Multi-Purpose Seal (Part No.5126)

    Multi-Purpose Seal

    from

    $16.99
    National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

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

    National – Multi-Purpose Seal (Part No.8516N)

    Multi-Purpose Seal

    from

    $10.99
    National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

    Product Features:
    • Design type: spring loaded; multi-lip
    • Temperature range: -20 Deg. F to 300 Deg. F / -29 Deg. C to 49 Deg. C
    • Resistance to EP lubricants
    • Low swell in hydrocarbon fluids
    • Delivers quality and reliable performance for every type of repair
    See More

    Yukon Gear – 7.25" & 8.25" Chrysler Pinion Seal (Part No.30189)

    7.25" & 8.25" Chrysler Pinion Seal

    from

    $16.99
    7.25″ & 8.25″ Chrysler pinion seal.Yukon Mighty seal.

    Product Features:
    • Pinion seal
    • Fits Chrysler 7.25″ and 8.25″
    See More

    Yukon Gear – Pinion Seal For 8.75" Chrysler Or For 9.25" Chrysler With 41 Or 89 Housing (Part No.30121)

    Pinion Seal For 8.75" Chrysler Or For 9.25" Chrysler With 41 Or 89 Housing

    from

    $13.99
    Pinion seal for 8.75″ Chrysler or for 9.25″ Chrysler with 41 or 89 housing.Yukon Mighty seal.

    Product Features:
    • Pinion seal
    • Fits Chrysler 8.75″ with ’41’ and ’89’ case housings and 2000 and down Chrysler 9.25″
    See More

    Best-Selling 1978 Dodge Magnum Differential Oil

    Upgrade your Magnum with one of our 3 best-selling Differential Oil.

    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-Quality Rear Differential Cover Gaskets for 1978 Dodge Magnums

    Choose a high-quality OEM or aftermarket Rear Differential Cover Gasket for Dodge Magnums and enjoy top-notch performance from $8.29.

    Felpro – Axle Housing Cover Gasket Octagonal Shaped 12 Bolt Hole Gasket (Part No.RDS 55073)

    Axle Housing Cover Gasket Octagonal Shaped 12 Bolt Hole Gasket

    from

    $10.49
    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
    • Engineered for the sealing repair environment
    • Validated for fit, form and function
    • Unsurpassed quality you can trust
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    Felpro – Axle Housing Cover Gasket: Oval Shaped 10 Bolt Hole Gasket (Part No.RDS 55047)

    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 – 9.25" Chrysler Rear Cover Gasket (Part No.23002)

    9.25" Chrysler Rear Cover Gasket

    from

    $12.99
    9.25″ Chrysler rear cover gasket.

    Product Features:
    • Cover gasket
    • Fits Chrysler 9.25″ rear
    See More

    Yukon Gear – 8.25" Chrysler Cover Gasket (Part No.23000)

    8.25" Chrysler Cover Gasket

    from

    $12.99
    8.25″ Chrysler cover gasket.

    Product Features:
    • Cover gasket
    • Fits Chrysler 8.25″
    See More

    Top Picks for 1978 Dodge Magnum Differential Covers

    Invest in one of our 3 durable Differential Covers for your 1978 Dodge, knowing you’re getting trusted brands and expert craftsmanship.

    Yukon Gear – Steel Cover For Chrysler 8.25" (Part No.32312)

    Steel Cover For Chrysler 8.25"

    from

    $159.99
    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 t

    Product Features:
    • Fits Chrysler 8.25″
    • Steel
    See More

    Yukon Gear – Chrome Cover For Chrysler 9.25" (Part No.32001)

    Chrome Cover For Chrysler 9.25"

    from

    $73.99
    Toyota wheel seal for ’80-’97 Full float Landcruiser outer rear, ’86-’95 dually pick-up.Yukon Mighty seal.

    Product Features:
    • Fits Chrysler 9.25″ rear
    • Chrome
    See More

    Yukon Gear – Steel Cover For Chrysler 9.25" Rear (Part No.32314)

    Steel Cover For Chrysler 9.25" Rear

    from

    $93.99
    Product Features:
    • Fits Chrysler 9.25″ rear
    • Steel
    See More

    Top-Rated Differential Bearings for 1978 Dodge Magnums

    Make a smart move for your 1978 Dodge Magnum with products all priced from $6.99 to $27.99.

    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

    Yukon Gear – Cross Pin Bolt For 7.25" Chrysler (Part No.33231)

    Cross Pin Bolt For 7.25" Chrysler

    from

    $26.99
    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 t

    Product Features:
    • Cross pin bolt
    • Fits Chrylser 7.25″
    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

    Yukon Gear – 9.25" Chrysler, Dana 60 Semi-Float X/P Bolt, 80 & Up, 5/16" Head, Tapered Shoulder (Part No.33238)

    9.25" Chrysler, Dana 60 Semi-Float X/P Bolt, 80 & Up, 5/16" Head, Tapered Shoulder

    from

    $9.99
    Product Features:
    • Cross pin bolt for Dana Spicer 60 with c-clip axles
    See More

    FAG US – Cup (Part No.LM501310)

    Cup

    from

    $9.99
    With advanced load-carrying capacity and compact design, tapered roller bearings are used in wheel bearings, transmissions, differentials, transfer cases and other miscellanous applications. FAG manufacturers over 100 million tapered roller bearings annually.

    Product Features:
    • High-precision and High-quality components used in all KITs
    • Coverage of classic and new high-tech solutions for the best system coverage
    See More

    Yukon Gear – Cross Pin Bolt (Part No.33067)

    Cross Pin Bolt

    from

    $6.99
    Cross pin bolt for Chrysler 8.25″, 9.25″ rear, Ford 7.5″, 8.8″, GM 12 bolt car & truck, 7.2″ IFs, 7.5″, 7.6″, 8.0″, 8.25″ IFS & 8.5″.

    Product Features:
    • Cross pin bolt for Chrysler 8.25″ and 9.25″ rear, Ford 7.5″ and 8.8″, GM 12 botl car and truck, 8.5″, 8.25″ IFS, 8.0″, 7.625″, 7.5″ and 7.2″ IFS
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    Top-Rated Differential Brands For Your 1978 Dodge Magnum

    When it comes to finding the perfect Differential for your 1978 Dodge Magnum, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 11 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 $7.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1978 Dodge Magnum, providing peace of mind with parts that meet or exceed OEM standards.

    Popular FELPRO 1978 Dodge Magnum Differentials

    If you’re looking for a top-quality Differential for your 1978 Dodge Magnum, Advance Auto Parts has exactly what you need with our selection of FELPRO Differentials. We have 2 FELPRO Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $8.29 and an average cost of $9.39, you’ll find the perfect Differential for your needs and budget. FELPRO Differentials for the 1978 Dodge Magnum come highly rated, with over 55 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
    (21)
    Axle Housing Cover Gasket: Oval Shaped 10 Bolt Hole Gasket
    “I always use Fel-Pro gaskets they’re the best, but this gasket to replace the differential gasket on my son’s Jeep when I did a fluid change work and ”

    Top-Quality National 1978 Dodge Magnum Differentials

    For those in search of a high-quality Differential for their 1978 Dodge Magnum, 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 $17.66, giving you a range of options to suit your budget. Backed by over 6 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.
    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.”
    Multi-Purpose Bearing
    from $27.99
    (1)
    Multi-Purpose Bearing
    “great price”
    Multi-Purpose Seal
    from $16.99
    (1)
    Multi-Purpose Seal
    “Perfect fit and in stock for a 50 year old vehicle. Thanks Advance Auto Parts”

    FAQs for 1978 Dodge Magnum Differentials

    What are the best-selling Differentials for 1978 Dodge Magnums?

    Out of 159 Differentials that fit 1978 Dodge Magnums, the following parts are the top sellers:

    What’s the price range for 1978 Dodge Magnum Differentials?

    The prices of Differentials for the 1978 Dodge Magnum range from $2.29 up to $1,080.99 for the most premium parts.

    What is the average price of a Differential for a 1978 Dodge Magnum?

    The average price for Differentials for the 1978 Dodge Magnum is $205.10. 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 Dodge Magnum model years?

    Yes, we carry Differentials for 4 model years of Dodge Magnums between 1979 and 2008. The following model years are the most popular for Differential purchases: 2008, 2007, 2006, 2005, and 1979.

    What are the cheapest Differentials for my 1978 Dodge Magnum?

    The cheapest 1978 Dodge Magnum Differentials we carry are:

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

    Yes. We stock Differentials for 21 other popular 1978 Dodge models. Some of the most popular are 1978 Charger Differentials, 1978 Challenger Differentials, 1978 Ramcharger Differentials, 1978 W150 Differentials, and 1978 Monaco Differentials.

    What are the top-rated Differentials that fit the 1978 Dodge Magnum?

    Based on 539 reviews by customers, our 1978 Dodge Magnum Differentials have an average customer rating of 4 stars. These are the highest-rated categories of Differentials for the 1978 Dodge Magnum and their top-rated products:

    What types of Differentials do you sell for my 1978 Dodge Magnum?

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

    Can I get help with 1978 Dodge Magnum Differential orders?

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

    What is your return policy for Dodge Magnum Differentials?

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