1978 Dodge B100 Differentials

Keep Your 1978 Dodge B100 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 B100 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 Covers, and Differential Pinion Seals. 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, Dorman, and FELPRO. For example, National Differentials start at just $7.99 with an average 4.3 star rating. Dorman and FELPRO offer similar pricing and quality, backed by strong customer feedback. With over 528 reviews and a solid 4 star average, you can shop with confidence knowing other Dodge B100 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1978 Dodge B100 Differential at Advance Auto Parts is around $287.96, with a range that starts at $2.29 and goes up to $1,487.99. With 302 options in stock from 12 trusted brands, finding the right fit is easy. Popular picks like Ring Gear Bolt, Oil Drain Plug Differential Plug Chrysler 2008-2000, Head Size, and Bearing Race 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 B100 in peak condition, inside and out.

Essential 1978 Dodge B100 Differentials

Yukon Gear – Replacement Trail Repair Kit For Dana 60 With 1310 Size U/Joint And U-Bolts (Part No.32282)

Replacement Trail Repair Kit For Dana 60 With 1310 Size U/Joint And U-Bolts

from

$251.99
Yukon replacement trail repair kit for Dana 60 with 1310 size U/joint and u-bolts. 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 Dana Spicer 60 and 70
  • 1310 u-joint size
  • Kit includes yoke, U-joint, pinion seal, pinion nut and washer, U-bolts and threadlocker
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Yukon Gear – Dana 60, Dana 70 & Dana 80 Cover Bolt (Part No.33235)

Dana 60, Dana 70 & Dana 80 Cover Bolt

from

$5.99
3/8″ cover bolt, Dana 60, Dana 70 & Dana 80.

Product Features:
  • Cover bolt for Dana Spicer 60, 70 and 80
  • 3/8″
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Yukon Gear – 1541H Alloy 5 Lug Rear Axle For ’84 And Older Chrysler 8.25" Van With A Length Of 32-5/8 Inch (Part No.21015)

1541H Alloy 5 Lug Rear Axle For '84 And Older Chrysler 8.25" Van With A Length Of 32-5/8 Inch

from

$454.99
Yukon 1541H alloy 5 lug rear axle for ’84 and older Chrysler 8.25″ van with a length of 32-5/8 inches and 27 splines. Yukon 1541H alloy axles offer a strength increase over stock while retaining a low cost. Yukon 1541H alloy rear axles come with a one year warranty against manufacturing defects. This is a C-clip axle.

Product Features:
  • 27 spline
  • 5 x 4.5″ bolt pattern
  • 32 5/8″ long
  • Fits Chrysler 8.25″ in 1984 and down Dodge van
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Yukon Gear – Minor Install Kit For Chrysler 70-75 8.25" Differential (Part No.12003)

Minor Install Kit For Chrysler 70-75 8.25" Differential

from

$36.99
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 1975 and down Chrysler 8.25″
  • Included are a pinion seal, crush sleeve, complete shim kit, marking compound and brush.
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Yukon Gear – Set Up Bearing (Part No.56046)

Set Up Bearing

from

$153.99
M804049 set-up bearing (one bearing). No return.

Product Features:
  • Set up bearing
  • Fits HM804049 pinion bearing
  • Easily slips on and off pinion journal to allow for pinion depth adjustment
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Yukon Gear – Pinion Nut For Dana 44 JK, 44HD, 60, 70, 70U, 70HD & Nissan Titan Rear 1 5/16" Nut 7/8" X 14 Thread (Part No.33144)

Pinion Nut For Dana 44 JK, 44HD, 60, 70, 70U, 70HD & Nissan Titan Rear 1 5/16" Nut 7/8" X 14 Thread

from

$7.99
Replacement pinion nut for Dana 44 JK, 44HD, 60, 70, 70U, 70HD & Nissan Titan rear. 1 5/16″ nut, 7/8″ x 14 thread.

Product Features:
  • Pinion nut for Jeep JK rear, Dana Spicer 44HD, 60, 70, 70U, 70HD and Nissan Titan rear
  • 7/8″ x 14 thread
  • 1 5/16″ socket
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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

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 – Dana 60 & Dana 70 Power Lok Clutch Set (Steel & Fiber) (Part No.16155)

Dana 60 & Dana 70 Power Lok Clutch Set (Steel & Fiber)

from

$181.99
Dana 60 & Dana 70 Power Lok clutch set (steel & fiber).

Product Features:
  • Clutch kit
  • Fit Dana Spicer 60, 70, 70U and 70HD Powr Lok positraction
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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Yukon Gear – Replacement Positraction Internals For Dana 60 And 70 With 35 Spline Axles (Part No.16008)

Replacement Positraction Internals For Dana 60 And 70 With 35 Spline Axles

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$832.99
Yukon replacement positraction internals for Dana 60 and 70 with 35 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:
  • Clutch kit
  • Fit Dana Spicer 60 Powr Lok positraction with 35 spline axles
  • Smooth design
  • Includes two side gears, four pinion gears, cross pin shafts and side gear thrust washers.
See More

Yukon Gear – Replacement Outer Oil Slinger For Dana 60, 70, 70U & 70HD (Part No.33019)

Replacement Outer Oil Slinger For Dana 60, 70, 70U & 70HD

from

$5.99
Product Features:
  • Outer oil slinger for Dana Spicer 60, 70, 70U and 70HD
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Motive Gear – Differential Pinion Shim Kit (Part No.1102)

Differential Pinion Shim Kit

from

$9.99


Product Features:
  • KIT SHIM PINION
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Yukon Gear – Replacement Cover Gasket For Dana 50, Dana 60 & Dana 70 (Part No.23007)

Replacement Cover Gasket For Dana 50, Dana 60 & Dana 70

from

$13.99
Product Features:
  • Cover gasket
  • Fits Dana Spicer 60, 70, 70U and 70HD
See More

Yukon Gear – Six Piece Side Gear And Thrust Washer Kit For Chrysler 8" And 9.25" (Part No.33278)

Six Piece Side Gear And Thrust Washer Kit For Chrysler 8" And 9.25"

from

$98.99
Six piece side gear thrust washer kit for Chrysler 8″ and 9.25″.

Product Features:
  • Side gear thrust washer kit
  • Fits Chrysler 8″ and 9.25″
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Dorman – Differential Ring and Pinion Set (Part No.697-207)

Differential Ring and Pinion Set

from

$1080.99
This differential ring and pinion directly replaces the original equipment on specific vehicle years, makes and models.

Product Features:
  • Direct replacement – this ring and pinion set matches the fit and function of the original components on certain vehicle applications
  • Effective fix – eliminates grinding and whining from failed original bearings
  • Thoroughly tested – vehicle try-on testing and rigorous quality control measures ensure longevity
  • Trustworthy quality – backed by team of designers and engineers in the United States
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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 – Hardcore Diff Cover For Dana 50, Dana 60 & Dana 70 (Part No.32352)

Hardcore Diff Cover For Dana 50, Dana 60 & Dana 70

from

$288.99
Product Features:
  • Nodular iron for added strength
  • Thick design
  • Durable powder coat finish
  • Magnetic drain plug
  • Made in USA
  • High strength stainless steel fasteners
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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 – Cross Pin Shaft For 8.25" Chrysler (Part No.33308)

Cross Pin Shaft For 8.25" Chrysler

from

$57.99
Cross pin shaft for 8.25″ Chrysler.

Product Features:
  • Cross pin shaft for Chrysler 8.25″
  • Fits standard open differentials only
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Yukon Gear – Carrier Installation Kit For Dana 60 Differential (Part No.57005)

Carrier Installation Kit For Dana 60 Differential

from

$194.99
Yukon Carrier installation kits are great, low cost kit for carrier changes such as Positraction or locker upgrades. Carrier installation kit for Dana 60 differential. This kit contains carrier bearings, races and shims.

Product Features:
  • Fits Dana Spicer 60
  • Includes carrier bearings and races and carrier shim kit
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Yukon Gear – Standard Open Spider Gear Kit For 9.25" Chrysler With 31 Spline Axles (Part No.16004)

Standard Open Spider Gear Kit For 9.25" Chrysler With 31 Spline Axles

from

$333.99
Yukon standard open spider gear kit for 9.25″ Chrysler with 31 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 9.25″ 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 – Dana 60 Pinion Gear Thrust Washer, Standard Open & Tracloc (Also 8.75" Chrysler Std) Dana 70 2Pc (Part No.33287)

Dana 60 Pinion Gear Thrust Washer, Standard Open & Tracloc (Also 8.75" Chrysler Std) Dana 70 2Pc

from

$5.99
Dana 60 pinion gear Thrust washer, standard Open & TracLoc (also 8.75″ Chrysler STD) Dana 70 2PC.

Product Features:
  • Pinion gear thrust washer for Dana Spicer 60
  • Fits standard open and Trac Loc applications
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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

Powertrax – Grip PRO Traction System (Part No.GT436035)

Grip PRO Traction System

from

$596.99
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 – Air Line Repair Kit, Zip Locker (Part No.34003)

Air Line Repair Kit, Zip Locker

from

$52.99
Air line repair kit, ZIP locker.

Product Features:
  • Air line repair kit
  • Includes 20′ air line and two repair fittings
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FAG US – Repair Sleeve (Part No.SR3506)

Repair Sleeve

from

$53.99
The FAG repair sleeve is a precision element that provides additional sealing for damaged shafts. Made of heat-treated stainless steel, the FAG repair sleeve signifcantly increases the life of the shaft and prevents premature wear. Since no shaft removal or machining is required during the repair, the repair sleeve is a cost effective repair solution to protect damaged surfaces.

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
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Yukon Gear – Replacement Baffle For Dana 60 & Dana 70-U (Part No.33001)

Replacement Baffle For Dana 60 & Dana 70-U

from

$6.99
Product Features:
  • Oil baffle for Dana Spicer 60 and Dana Spicer 70U
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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

Most Popular Rear Differential Cover Gaskets for 1978 Dodge B100s

Enhance your 1978 Dodge B100 with one of the 4 Rear Differential Cover Gaskets we have in stock, starting at just $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
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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

Best-Selling 1978 Dodge B100 Differential Covers

Upgrade your B100 with one of our 7 best-selling Differential Covers.

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
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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
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Yukon Gear – Steel Cover For Dana 60 Standard Rotation (Part No.32321)

Steel Cover For Dana 60 Standard Rotation

from

$114.99
Product Features:
  • Fits standard rotation Dana Spicer 60
  • Steel
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Yukon Gear – Hardcore Diff Cover For Dana 50, Dana 60 & Dana 70 (Part No.32352)

Hardcore Diff Cover For Dana 50, Dana 60 & Dana 70

from

$288.99
Product Features:
  • Nodular iron for added strength
  • Thick design
  • Durable powder coat finish
  • Magnetic drain plug
  • Made in USA
  • High strength stainless steel fasteners
See More

Yukon Gear – Polished Aluminum Replacement Cover For Dana 60 (Part No.32024)

Polished Aluminum Replacement Cover For Dana 60

from

$269.99
Polished aluminum replacement cover for Dana 60 (standard rotation only).

Product Features:
  • Fits standard rotation Dana Spicer 60
  • Finned polished aluminum
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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 – Chrome Replacement Cover For Dana 60 And 61 Standard Rotation (Part No.32005)

Chrome Replacement Cover For Dana 60 And 61 Standard Rotation

from

$89.99
Chrome replacement cover for Dana 60 and 61(not reverse rotation!).

Product Features:
  • Fits standard rotation Dana Spicer 60
  • Chrome
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Top-Quality Differential Pinion Seals for 1978 Dodge B100s

Choose a high-quality OEM or aftermarket Differential Pinion Seal for Dodge B100s and enjoy top-notch performance from $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
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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
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Motive Gear – Differential Pinion Seal (Part No.9316)

Differential Pinion Seal

from

$16.49
Motive Gear offers some of the toughest drive train components on the market today. If you are looking for the largest line of performance ring and pinion gear options available with gear sets in a wide range of ratios for nearly every application, both on and off-road, check out Motive Gear. Motive Gear products can be found in the winner’s circle at racing events worldwide. The superior quality of Motive Gear components is the result of years of racing development, outstanding design and state-of-the-art manufacturing methods. Extensive testing is performed on all products by our in-house engineers.
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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″
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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″
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Top Picks for 1978 Dodge B100 Differential Bearings

Invest in one of our 9 durable Differential Bearings for your 1978 Dodge, knowing you’re getting trusted brands and expert craftsmanship.

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

FAG US – Bearing – TRB (Tapered Roller Bearing) (Part No.KT11)

Bearing - TRB (Tapered Roller Bearing)

from

$21.79
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
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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

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
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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

National – Bearing Race (Part No.JL69310)

Bearing Race

from

$7.29
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 – 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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Differential Oil for 1978 Dodge B100s

Make a smart move for your 1978 Dodge B100 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
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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 Dodge B100

When it comes to finding the perfect Differential for your 1978 Dodge B100, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 12 trusted brands. We carry the most popular Differential brands including FELPRO, National, and Dorman, 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 B100, providing peace of mind with parts that meet or exceed OEM standards.

Popular FELPRO 1978 Dodge B100 Differentials

If you’re looking for a top-quality Differential for your 1978 Dodge B100, 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 B100 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 B100 Differentials

For those in search of a high-quality Differential for their 1978 Dodge B100, 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 B100 Differentials

What are the best-selling Differentials for 1978 Dodge B100s?

Out of 302 Differentials that fit 1978 Dodge B100s, the following parts are the top sellers:

What’s the price range for 1978 Dodge B100 Differentials?

The prices of Differentials for the 1978 Dodge B100 range from $2.29 up to $1,487.99 for the most premium parts.

What is the average price of a Differential for a 1978 Dodge B100?

The average price for Differentials for the 1978 Dodge B100 is $287.96. 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 B100 model years?

Yes, we carry Differentials for 4 model years of Dodge B100s 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 Dodge B100?

The cheapest 1978 Dodge B100 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 Magnum Differentials, 1978 Ramcharger Differentials, and 1978 W150 Differentials.

What are the top-rated Differentials that fit the 1978 Dodge B100?

Based on 528 reviews by customers, our 1978 Dodge B100 Differentials have an average customer rating of 4 stars. These are the highest-rated categories of Differentials for the 1978 Dodge B100 and their top-rated products:

What types of Differentials do you sell for my 1978 Dodge B100?

As of 11/2/25, these are some of the most in-demand types of Differentials for a 1978 Dodge B100:

Can I get help with 1978 Dodge B100 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 B100 Differentials?

Advance Auto Parts keeps returns simple. For new Dodge B100 Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.