1978 Dodge Magnum Differentials

Essential 1978 Dodge Magnum Differentials

USA Standard Gear – Master Overhaul Kit for the Chrysler ’76-’04 8.25" Differential (Part No.37001)

Master Overhaul Kit for the Chrysler '76-'04 8.25" Differential

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$189.99
USA Standard Master Overhaul kits let you finish your install with confidence. This kit uses Koyo bearings and races. Included 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), threading locking compound, marking compound with brush and gasket.

Product Features:
  • Fits 1976-2004 Chrysler 8.25″
  • Uses Koyo bearings and races
  • Included are carrier 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.
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Richmond Gear – RngPnn (Part No.49-0078-1)

RngPnn

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$426.99
RngPnn

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

Differential Carrier Gear Kit

from

$219.99


Product Features:
  • C9.25 OPEN INTERNAL KIT, 1984-UP
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Yukon Gear – Bearing Install Kit For ’75 And Newer Chrysler 8.25" Differential (Part No.11004)

Bearing Install Kit For '75 And Newer Chrysler 8.25" Differential

from

$234.99
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 1976 and up Chrysler 8.25″
  • Included are carrier bearings and races, pinion bearings and races, pinion seal, crush sleeve , marking compound and brush.
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Yukon Gear – Differential Side Bearing Screw Adjuster For 9.25" Chrysler (Part No.33256)

Differential Side Bearing Screw Adjuster For 9.25" Chrysler

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$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 – 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

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$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.
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Yukon Gear – The Carrier Bearing Puller (Part No.56034)

The Carrier Bearing Puller

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$689.99
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 most standard one ton applications. This unit is works with differentials up to one-ton applcations. It is not compatible with 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
  • Not compatible with Dana 70HD, Dana 80, Ford 10.25″ and 10.5″ or Gm and Chrysler 11.5″ applications
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Felpro – DIFFERENTIAL GASKET (Part No.RDS 55047)

DIFFERENTIAL GASKET

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$6.79
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Unsurpassed quality you can trust
  • Validated for fit, form and function
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
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Yukon Gear – Yoke For Chrysler 7.25" And 8.25" With A 7260 U/Joint Size (Part No.41003)

Yoke For Chrysler 7.25" And 8.25" With A 7260 U/Joint Size

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$279.99
Yukon yoke for Chrysler 7.25″ and 8.25″ with a 7260 U/joint size. 2.125″ snap ring span, 1.078″ cap diameter. Inside snap ring.This yoke uses straps. All Yukon yokes come with a one year warranty against manufacturing defects.

Product Features:
  • Fits Chrysler 7.25″ and 8.25″
  • 27 spline
  • 7260 u-joint size
  • Inside snap ring design
  • 2.125″ snap ring span
  • 1.078″ cap diameter
  • Strap style
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Royal Purple – MaxGear SAE 75W140 High Performance Gear Oil w/Friction Modifier Additive, 1 QT (Part No.01301)

MaxGear SAE 75W140 High Performance Gear Oil w/Friction Modifier Additive, 1 QT

from

$25.99
Max Gear is recommended for truck and automotive differentials, outboard motor lower units or in rear axles or manual transmissions requiring an API fluid. Max Gear is a high performance automotive gear oil designed to provide maximum protection to heavily loaded gears while increasing power throughput through the drive train. Max Gear virtually eliminates both gear and bearing wear-even under severe squeeze film conditions caused by extremely high loads, sudden shock loads or low RPMs. Slippery, synthetic molecules not only reduce wear and friction but significantly increase Max Gear’s cold weather fluidity and lubricity, making it the ideal choice for vehicles operating in cold climates. Gears run smoother, quieter, cooler and longer without overhauls. It is noncorrosive to both ferrous and nonferrous metals.

Product Features:
  • Maximizes horsepower
  • Extends gear and bearing life
  • Reduces operating temperature
  • Lower coefficient of friction
  • Superior corrosion protection
  • Separates rapidly from water
  • For use with open, limited-slip and locking differential
  • Contains limited-slip friction modifier
  • Made in USA
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Yukon Gear – Ring Gear Bolt For Chrysler 9.25" Rear (Part No.33033)

Ring Gear Bolt For Chrysler 9.25" Rear

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$9.99
Ring gear bolt for Chrysler 9.25″ rear, 7/16″ x 18.

Product Features:
  • Ring gear bolt for Chrysler 9.25″ rear
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Yukon Gear – 9.25" Chrysler Rear Cover Gasket (Part No.23002)

9.25" Chrysler Rear Cover Gasket

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$12.99
9.25″ Chrysler rear cover gasket.

Product Features:
  • Cover gasket
  • Fits Chrysler 9.25″ rear
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National – Bearings (Part No.HM803149)

Bearings

from

$36.49
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
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Yukon Gear – Rubber Fill Plug For Chrysler (Part No.33463)

Rubber Fill Plug For Chrysler

from

$22.99
Product Features:
  • Rubber fill plug
  • Fits Chrysler 7.25″, 8.25″ and 9.25″
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Yukon Gear – Crush Sleeve (Part No.33094)

Crush Sleeve

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$15.99
Crush Sleeve for Chrysler 8″ & 9.25″ rear. Approx 0.630″ long.

Product Features:
  • Crush sleeve for Chrysler 8.0″ IFS and 9.25″ rear, also Ford 9″ with aftermarket Daytona pinion support
  • 0.630″ tall
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National – Bearings (Part No.M86610)

Bearings

from

$9.49
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
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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 – Cross Pin Shaft For Chrysler 7.25" (Part No.33307)

Cross Pin Shaft For Chrysler 7.25"

from

$49.99
Cross pin shaft for Chrysler 7.25″.

Product Features:
  • Cross pin shaft
  • Fits Chrysler 7.25″
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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″
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Powertrax – Grip LS Traction System (Part No.LS309231)

Grip LS Traction System

from

$511.99
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!
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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
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Yukon Gear – Pinion Nut (Part No.33142)

Pinion Nut

from

$10.99
Pinion nut for Chrysler 7.25″, 8.0″ IFS, 8.25″, 8.75″ fine spline, 9.25″ front & rear, 7/16″ x 14.

Product Features:
  • Pinion nut for Chrysler 8.0″ IFS, 8.25″, 8.75″ with 29 spline pinion and 9.25″ rear
  • 7/8″ x 14 thread
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Yukon Gear – 9.25" Pinion Gear Thrust Washer (Part No.33274)

9.25" Pinion Gear Thrust Washer

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$12.99
9.25″ pinion gear thrust washer.

Product Features:
  • Pinion gear thrust washer for Chrysler 9.25″ rear
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USA Standard Gear – Spartan Locker For Chrysler 8.25" With 29 Spline Axles, Includes Heavy-Duty Cross Pin Shaft (Part No.17038)

Spartan Locker For Chrysler 8.25" With 29 Spline Axles, Includes Heavy-Duty Cross Pin Shaft

from

$799.99
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 Chrysler 8.25″ with 29 spline axles
  • Made from 9310 steel for added strength
  • Replaces the spiders in a standard carrier case
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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
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Yukon Gear – Carrier Installation Kit For Chrysler 9.25" Rear Differential (Part No.57001)

Carrier Installation Kit For Chrysler 9.25" Rear Differential

from

$173.99
Yukon Carrier installation kits are great, low cost kit for carrier changes such as Positraction or locker upgrades. Carrier installation kit for Chrysler 9.25″ rear differential. This kit contains carrier bearings and races.

Product Features:
  • Fits Chrysler 9.25″ rear
  • Includes carrier bearings and races
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National – Shaft Repair Sleeve (Part No.99157)

Shaft Repair Sleeve

from

$37.49
National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Designed to repair damaged, grooved or worn shafts
  • Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
  • Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
  • Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
  • Easy to install with removable flange and installation tool
  • Installation tool reduces sleeve distortion and allows for installation without removal from the shaft
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Driveworks – Tapered Roller Bearing (Part No.S-32010X)

Tapered Roller Bearing

from

$28.99
Product Features:
  • Brand may vary by location
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1978 Dodge Magnum Differentials

Maybe you’re in the middle of a full rebuild of that 1978 Dodge Magnum. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 170 different Differentials in our inventory ranging from $2.29 to $1,566.99. That means you can find the exact parts or products you need to keep that 1978 Dodge Magnum running smoothly.

Differentials are only as good as their brand. We stock 11 different brands to make sure you have plenty of trusted parts to choose from for your 1978 Dodge Magnum. FELPRO, Yukon Gear, and National are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Differentials for your 1978 Dodge Magnum, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 560 reviews in this category, some of the top rated parts include Differential Carrier Gear Kit with 3.7 stars and Differential Ring And Pinion Set with 5.0 stars.

So if you’re in the market for aftermarket Differentials to keep your 1978 Dodge Magnum rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Differentials Brands To Make Your 1978 Dodge Magnum Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1978 Dodge Magnum demands trusted brand parts and products to keep it running. Many trusted brands of Differentials make up Advance Auto Parts’ inventory, and all are ready to help make your Magnum the best it can be. Be sure to browse some of our top Differentials brands and parts.

Popular Yukon Gear Differentials

We carry Yukon Gear parts in our stock across Differential Cross Pins categories, plus more. For a 1978 Dodge Magnum, our most popular Yukon Gear Differentials include:
Cross Pin Shaft For Standard Open Chrysler 9.25"
from $46.99
(1)
Cross Pin Shaft For Standard Open Chrysler 9.25"
Differential Cross Pins

Top 1978 Dodge Magnum Differentials from Felpro

Felpro products are another trusted brand when it comes to Differentials for your 1978 Dodge Magnum. Popular Felpro parts include:
Differential Cover Gasket
from $9.49
(34)
Differential Cover Gasket
Rear Differential Cover Gaskets
DIFFERENTIAL GASKET
from $6.79
(21)
DIFFERENTIAL GASKET
Rear Housing Cover Gaskets

FAQs for 1978 Dodge Magnum Differentials

What are the most purchased Differentials for the 1978 Dodge Magnum?

Out of 170 Differentials for the 1978 Dodge Magnum, the most popular in our inventory are:
3 Qt - 80W90 Conventional Gear Oil With Posi Additive
from $57.99
This product is not rated
3 Qt – 80W90 Conventional Gear Oil With Posi Additive
Differential Oil
Bearings
from $23.99
(7)
Bearings
Front Differential Pinion Bearings
Ring Gear Bolt
from $2.49
This product is not rated
Ring Gear Bolt
Differential Ring Gear Bolts

What are the top-rated 1978 Dodge Magnum Differentials?

Top-rated Differentials for your 1978 Dodge Magnum based on customer reviews/ratings are:
Differential Carrier Gear Kit
from $219.99
(6)
Differential Carrier Gear Kit
“Great customer service”
Differential Ring And Pinion Set
from $384.99
(2)
Differential Ring And Pinion Set
“good”
Differential Pinion Shim Kit
from $7.49
(1)
Differential Pinion Shim Kit
“good product”