1975 Dodge D100 Differentials

Keep Your 1975 Dodge D100 in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1975 Dodge D100 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 National, FELPRO, and Dorman. For example, National Differentials start at just $7.99 with an average 4.3 star rating. FELPRO and Dorman offer similar pricing and quality, backed by strong customer feedback. With over 364 reviews and a solid 4 star average, you can shop with confidence knowing other Dodge D100 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1975 Dodge D100 Differential at Advance Auto Parts is around $196.93, with a range that starts at $2.29 and goes up to $1,034.99. With 162 options in stock from 11 trusted brands, finding the right fit is easy. Popular picks like Ring Gear Bolt, Bearing Race, and Tapered Roller Bearing Cone 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 1975 Dodge D100 in peak condition, inside and out.

Essential 1975 Dodge D100 Differentials

Motive Gear – Differential Pinion Shim Kit (Part No.1100)

Differential Pinion Shim Kit

from

$7.99
High-quality Differential Component Shim

Product Features:
  • SHIM KIT FITS-8.25-F7.5-AMC20-GM0
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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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FAG US – Shaft Seal (Part No.SS2633)

Shaft Seal

from

$28.99
Our wheel seals are engineered using only the highest-quality materials to meet vehicle manufacturer specificatons. We work with suppliers to design seals that meet FAG’s quality standards. Seals are designed to protect wheel end components from contamination – such as dirt, dust, and moisture – and prevent the loss of grease over the life of the bearing. The specifications for wheel seals are very demanding, and the type required depends on the specific application, position and vehicle class.

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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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
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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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USA Standard Gear – Open Spider Gear Set For Chrysler 9.25", 31 Spline (Part No.39004)

Open Spider Gear Set For Chrysler 9.25", 31 Spline

from

$209.99
Product Features:
  • Fits 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.
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USA Standard Gear – Ring/Pinion Sets (Part No.36022)

Ring/Pinion Sets

from

$409.99
Ring/Pinion Sets

Yukon Gear – Cross Pin Shaft For Standard Open Chrysler 9.25" (Part No.33311)

Cross Pin Shaft For Standard Open Chrysler 9.25"

from

$46.99
Cross pin shaft for standard open Chrysler 9.25″, .860″ diameter. Will not fit posi!

Product Features:
  • Cross pin shaft for Chrysler 9.25″
  • Fits standard open differentials only
  • 0.860″ diameter
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USA Standard Gear – Spartan Locker For Chrysler 8.25" With 27 Spline Axles, Includes Heavy-Duty Cross Pin Shaft (Part No.17037)

Spartan Locker For Chrysler 8.25" With 27 Spline Axles, Includes Heavy-Duty Cross Pin Shaft

from

$829.99
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 27 spline axles
  • Made from 9310 steel for added strength
  • Replaces the spiders in a standard carrier case
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Pro-King – Differential Case (Empty) (Part No.723A714)

Differential Case (Empty)

from

$243.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:
  • All products are designed to meet or exceed OE quality, form, fit and funtion.
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Yukon Gear – Positraction Spiders For Chrysler9.25" Dura Grip Posi, 31 Spline, No Clutches Included (Part No.16180)

Positraction Spiders For Chrysler9.25" Dura Grip Posi, 31 Spline, No Clutches Included

from

$389.99
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 9.25″
  • Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.
  • Fits Yukon Dura Grip
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USA Standard Gear – Master Overhaul Kit for ’00 & Down Chrysler 9.25" Rear Differential. (Part No.37002)

Master Overhaul Kit for '00 & Down Chrysler 9.25" Rear Differential.

from

$267.99
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 2000 and down Chrysler 9.25″ rear
  • 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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Motive Gear – Differential Bearing Kit – Koyo (Part No.R8.25R)

Differential Bearing Kit - Koyo

from

$102.99
Motive Gear Differential Bearing Kits Include Front & Rear Pinion Bearing, Pinion Seal, Carrier Bearings, Pilot Bearing Where Applicable, Gear Marking Compound, Crush Sleeve, Pinion Nut, Brush, Thread Locking Compound And Cover Gasket Or Rtv

Product Features:
  • KIT BRG.&SEAL CHRYS. 8.25
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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
See More

Motive Gear – Drive Shaft Pinion Yoke (Part No.MG1350-8759)

Drive Shaft Pinion Yoke

from

$254.99


Product Features:
  • BILLET HP 1350-29 SPLINE YOKE
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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
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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

    Yukon Gear – Differential Carrier Side Bearing Screw Adjuster For Chrysler 7.25" And 8.25" (Part No.33257)

    Differential Carrier Side Bearing Screw Adjuster For Chrysler 7.25" And 8.25"

    from

    $42.99
    Differential carrier side bearing screw adjuster for Chrysler 7.25″ and 8.25″.

    Product Features:
    • Side adjuster
    • Fits Chrysler 7.25″ and 8.25″
    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

    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
    See More

    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
    See More

    Yukon Gear – Yoke For Chrysler 9.25" With A 7260 U/Joint Size. (Part No.41001)

    Yoke For Chrysler 9.25" With A 7260 U/Joint Size.

    from

    $289.99
    Yukon yoke for Chrysler 9.25″ with a 7260 U/joint size. 2.125″ snap ring span, 1.078″ cap diameter. Inside snap ring.All Yukon yokes come with a one year warranty against manufacturing defects.

    Product Features:
    • Fits Chrysler 9.25″ rear
    • 29 spline
    • 7260 u-joint size
    • Inside snap ring design
    • 2.125″ snap ring span
    • 1.078″ cap diameter
    • Strap style
    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

    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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    National – Bearing Race (Part No.HM88610)

    Bearing Race

    from

    $15.49
    Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.

    Product Features:
    • PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
    • SMOOTH ROTATION – Crowned raceways for even load distribution
    • OE-STYLE DESIGN – Engineered to meet OE specifications
    • COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
    • RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on
    See More

    Yukon Gear – 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

    Dorman – Help – Pinion Crush Sleeve (Part No.81059)

    Pinion Crush Sleeve

    from

    $8.99
    This differential crush sleeve is designed to match the fit and function of the original sleeve on specified vehicles, and is engineered for durability and reliable performance.

    Product Features:
    • Direct replacement – this differential crush sleeve is designed to match the fit and function of the original sleeve on specified vehicles
    • Required replacement – when servicing the differential
    • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
    • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
    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″
    See More

    Most Popular Differential Bearings for 1975 Dodge D100s

    Enhance your 1975 Dodge D100 with one of the 12 Differential Bearings we have in stock, starting at just $6.99.

    National – Bearing Race (Part No.LM104912)

    Bearing Race

    from

    $14.29
    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 – Bearing Race (Part No.LM102910)

    Bearing Race

    from

    $7.79
    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 – Tapered Roller Bearing Cone (Part No.LM104949)

    Tapered Roller Bearing Cone

    from

    $21.99
    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

    Driveworks – Taper Bearing Cone (Part No.S-LM-104949)

    Taper Bearing Cone

    from

    $11.99
    Value-priced bearing meets all cataloged application requirements.

    Product Features:
    • Brand may vary by location
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    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
    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

    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

    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
    See More

    Best-Selling 1975 Dodge D100 Differential Covers

    Upgrade your D100 with one of our 3 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
    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-Quality Rear Differential Cover Gaskets for 1975 Dodge D100s

    Choose a high-quality OEM or aftermarket Rear Differential Cover Gasket for Dodge D100s 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
    See More

    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 1975 Dodge D100 Differential Oil

    Invest in one of our 3 durable Differential Oil for your 1975 Dodge, knowing you’re getting trusted brands and expert craftsmanship.

    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 Pinion Seals for 1975 Dodge D100s

    Make a smart move for your 1975 Dodge D100 with products all priced from $10.99 to $16.99.

    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″
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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-Rated Differential Brands For Your 1975 Dodge D100

    When it comes to finding the perfect Differential for your 1975 Dodge D100, 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 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 1975 Dodge D100, providing peace of mind with parts that meet or exceed OEM standards.

    Popular FELPRO 1975 Dodge D100 Differentials

    If you’re looking for a top-quality Differential for your 1975 Dodge D100, Advance Auto Parts has exactly what you need with our selection of FELPRO Differentials. We have 3 FELPRO Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $7.99 and an average cost of $8.92, you’ll find the perfect Differential for your needs and budget. FELPRO Differentials for the 1975 Dodge D100 come highly rated, with over 56 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.
    Differential Carrier Gasket Round Shaped 10 Bolt Hole Gasket
    from $7.99
    (1)
    Differential Carrier Gasket Round Shaped 10 Bolt Hole Gasket
    “It just what i needed for my 74 cuda rear end house which is 8 3/4”
    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 1975 Dodge D100 Differentials

    For those in search of a high-quality Differential for their 1975 Dodge D100, 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 $13.09, 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 Seal
    from $16.99
    (1)
    Multi-Purpose Seal
    “Perfect fit and in stock for a 50 year old vehicle. Thanks Advance Auto Parts”
    Bearing Race
    from $14.29
    (1)
    Bearing Race
    “As always, these bearings did the job and last forever. Just happy I found them in stock.”

    FAQs for 1975 Dodge D100 Differentials

    What are the best-selling Differentials for 1975 Dodge D100s?

    Out of 162 Differentials that fit 1975 Dodge D100s, the following parts are the top sellers:

    What’s the price range for 1975 Dodge D100 Differentials?

    The prices of Differentials for the 1975 Dodge D100 range from $2.29 up to $1,034.99 for the most premium parts.

    What is the average price of a Differential for a 1975 Dodge D100?

    The average price for Differentials for the 1975 Dodge D100 is $196.93. 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 D100 model years?

    Yes, we carry Differentials for 9 model years of Dodge D100s between 1976 and 1989. The following model years are the most popular for Differential purchases: 1989, 1988, 1987, 1986, 1985, 1984, 1979, 1978, and 1977.

    What are the cheapest Differentials for my 1975 Dodge D100?

    The cheapest 1975 Dodge D100 Differentials we carry are:

    Does Advance Auto Parts sell Differentials for any other 1975 Dodge models?

    Yes. We stock Differentials for 15 other popular 1975 Dodge models. Some of the most popular are 1975 Charger Differentials, 1975 Dart Differentials, 1975 Ramcharger Differentials, 1975 Monaco Differentials, and 1975 W100 Differentials.

    What are the top-rated Differentials that fit the 1975 Dodge D100?

    Based on 364 reviews by customers, our 1975 Dodge D100 Differentials have an average customer rating of 4 stars. These are the highest-rated categories of Differentials for the 1975 Dodge D100 and their top-rated products:

    What types of Differentials do you sell for my 1975 Dodge D100?

    As of 11/2/25, these are some of the most in-demand types of Differentials for a 1975 Dodge D100:

    Can I get help with 1975 Dodge D100 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 D100 Differentials?

    Advance Auto Parts keeps returns simple. For new Dodge D100 Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.