1986 Dodge Diplomat Differentials

Keep Your 1986 Dodge Diplomat in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1986 Dodge Diplomat 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 Differential Bearings. 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 Dorman, Motive Gear, and National. For example, Dorman Differentials start at just $6.79 with an average 4.2 star rating. Motive Gear and National offer similar pricing and quality, backed by strong customer feedback. With over 296 reviews and a solid 4 star average, you can shop with confidence knowing other Dodge Diplomat owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1986 Dodge Diplomat Differential at Advance Auto Parts is around $210.98, with a range that starts at $2.99 and goes up to $1,080.99. With 158 options in stock from 11 trusted brands, finding the right fit is easy. Popular picks like Tapered Cone/Cup Wheel Bearing Set, Axle Housing Cover Gasket: Oval Shaped 10 Bolt Hole Gasket, and Oil Drain Plug Differential Plug Chrysler 2008-2000, Head Size start at just $8.29 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Differential, don’t forget to check out other key components like Drive Shafts and Axles and Universal Joints. At Advance Auto Parts, we’re here to help you keep your 1986 Dodge Diplomat in peak condition, inside and out.

Essential 1986 Dodge Diplomat Differentials

National – Bearing Race (Part No.LM501310)

Bearing Race

from

$8.49
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 – 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
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

Dorman – Help – Differential Shaft Lock Bolt (Part No.81048)

Differential Shaft Lock Bolt

from

$6.79
This differential pinion shaft lock bolt is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this differential pinion shaft lock bolt matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this bolt is a reliable replacement for an original part that is missing or has failed due to fatigue
  • 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 – 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 – Minor Install Kit For Chrysler 7.25" Differential (Part No.12001)

Minor Install Kit For Chrysler 7.25" Differential

from

$40.99
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 Chrysler 7.25″ rear
  • Included are a pinion seal, crush sleeve, complete shim kit, marking compound and brush.
See More

Motive Gear – Differential Pinion Shim Kit (Part No.1104)

Differential Pinion Shim Kit

from

$12.99


Product Features:
  • KIT SHIM
See More

Powertrax – No-Slip Traction System (Part No.9203822705)

No-Slip Traction System

from

$527.99
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

    Motive Gear – Differential Crush Sleeve (Part No.3507575)

    Differential Crush Sleeve

    from

    $2.99


    Product Features:
    • CRUSH SLEEVE 7.25 & 8.25 MIN ORDER 5000
    See More

    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
    See More

    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
    See More

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

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

    from

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

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

    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 – 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

    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.
    See More

    Yukon Gear – Redi-Sleeve Yoke Saver For 8.75" C, 9.25" C, Dana 60, Dana 61, Dana 70, Dana 70U, Dana 70HD (Part No.30228)

    Redi-Sleeve Yoke Saver For 8.75" C, 9.25" C, Dana 60, Dana 61, Dana 70, Dana 70U, Dana 70HD

    from

    $37.99
    Replacement redi-sleeve yoke saver for 8.75″ c, 9.25″ c, Dana 60, Dana 61, Dana 70, Dana 70U, Dana 70HD .Yukon Mighty seal.

    Product Features:
    • Redi-Sleeve yoke saver
    • Fits Chrysler 8.75″ and 9.25″ rear, 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″
    See More

    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

    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 – 8.25" Chrysler, Model 35, D36 Ica, & Dana 28 Tracloc Clutch Set (Part No.16147)

    8.25" Chrysler, Model 35, D36 Ica, & Dana 28 Tracloc Clutch Set

    from

    $171.99
    8.25″ Chrysler, Model 35, D36 ICA, & Dana 28 TracLoc clutch set.

    Product Features:
    • Clutch kit
    • Fits Chrysler 8.25″ Trac Loc positraction
    See More

    Yukon Gear – Bearing Install Kit For ’00 & Down Chrysler 9.25" Rear Differential (Part No.11011)

    Bearing Install Kit For '00 & Down Chrysler 9.25" Rear Differential

    from

    $274.99
    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 2000 and down Chrysler 9.25″ rear
    • Included are carrier bearings and races, pinion bearings and races, pinion seal, crush sleeve , marking compound and brush.
    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

    Yukon Gear – 8.25" Chrysler Notched Cross Pin (0.801" Diameter) (Part No.33433)

    8.25" Chrysler Notched Cross Pin (0.801" Diameter)

    from

    $84.99
    8.25″ Chrysler notched cross pin shaft for standard open carriers. (0.801″ diameter). This cross pin shaft is not compatible with Powertrax Lock Rights or Spartan Lockers, or with factory Trac Loc positractions.

    Product Features:
    • Cross pin shaft
    • Fits Chryler 8.25″
    • 0.801″ diameter
    • Notched
    • Not compatible with Spartan Lockers or Lock Rights
    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

    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
    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
    See More

    Needa Parts – Rubber Differential Plug Chrysler 2008-2000 (sold by each) (Part No.090-062)

    Rubber Differential Plug Chrysler 2008-2000 (sold by each)

    from

    $10.99
    This differential cover plug is designed to match the fit & function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

    Product Features:
    • Direct replacement – this differential cover plug matches the fit and function of the factory part on specified years, makes and models.
    • Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
    • 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

    Motive Gear – Ring Gear Bolt (Part No.1304)

    Ring Gear Bolt

    from

    $7.99


    Product Features:
    • CHRY 8 3/4″ RING GEAR BOLTS C 8.25″
    See More

    Most Popular Differential Pinion Seals for 1986 Dodge Diplomats

    Enhance your 1986 Dodge Diplomat with one of the 3 Differential Pinion Seals we have in stock, starting at just $10.99.

    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 1986 Dodge Diplomat Differential Oil

    Upgrade your Diplomat 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 Differential Bearings for 1986 Dodge Diplomats

    Choose a high-quality OEM or aftermarket Differential Bearing for Dodge Diplomats and enjoy top-notch performance from $6.99.

    Driveworks – Tapered Cone/Cup Wheel Bearing Set (Part No.S-A-35)

    Tapered Cone/Cup Wheel Bearing Set

    from

    $26.99
    Value-priced bearing meets all cataloged application requirements.

    Product Features:
    • Brand may vary by location
    See More

    National – Multi-Purpose Bearing (Part No.A-36)

    Multi-Purpose Bearing

    from

    $27.99
    Product Features:
    • CONSISTENT PERFORMANCE: Matched cup and cone components ensure consistent performance
    • PREMIUM MATERIALS: Precision manufactured using premium-grade steel for outstanding durability and performance
    • SMOOTH ROTATION: Crowned raceways and rollers for even load distribution
    • OE-STYLE DESIGN: Engineered to meet OE specifications
    • COMPREHENSIVE COVERAGE: Industry-leading coverage for domestic and import applications
    • RIGOROUS TESTING: Comprehensive testing throughout design and development processes by National engineers for quality you can count on
    See More

    National – Bearing Race (Part No.LM501310)

    Bearing Race

    from

    $8.49
    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 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
    See More

    Top Picks for 1986 Dodge Diplomat Rear Differential Cover Gaskets

    Invest in one of our 3 durable Rear Differential Cover Gaskets for your 1986 Dodge, knowing you’re getting trusted brands and expert craftsmanship.

    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

    Differential Covers for 1986 Dodge Diplomats

    Make a smart move for your 1986 Dodge Diplomat with products all priced from $73.99 to $159.99.

    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
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    Top-Rated Differential Brands For Your 1986 Dodge Diplomat

    When it comes to finding the perfect Differential for your 1986 Dodge Diplomat, 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 National, Dorman, and Motive Gear, and more, all known for their exceptional customer ratings (average brand rating of 4.3 stars) and competitive prices, as low as $2.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1986 Dodge Diplomat, providing peace of mind with parts that meet or exceed OEM standards.

    Popular National 1986 Dodge Diplomat Differentials

    If you’re looking for a top-quality Differential for your 1986 Dodge Diplomat, Advance Auto Parts has exactly what you need with our selection of National Differentials. We have 2 National Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $10.99 and an average cost of $19.49, you’ll find the perfect Differential for your needs and budget. National Differentials for the 1986 Dodge Diplomat come highly rated, with over 2 customer reviews and an impressive average rating of 4.3 stars. Choosing a National Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
    Multi-Purpose Seal
    from $10.99
    (1)
    Multi-Purpose Seal
    “Love advance they carry better parts than competitors online ordering with all the different promo codes and you can pick up in store”
    Multi-Purpose Bearing
    from $27.99
    (1)
    Multi-Purpose Bearing
    “great price”

    Top-Quality Dorman 1986 Dodge Diplomat Differentials

    For those in search of a high-quality Differential for their 1986 Dodge Diplomat, Advance Auto Parts offers a great selection of Dorman Differentials. With 3 Dorman 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 $6.79, with an average price of $133.26, giving you a range of options to suit your budget. Backed by over 24 customer ratings and an average rating of 4.2 stars, Dorman Differentials provide both reliability and excellent performance. Choosing a Dorman Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
    Differential Shaft Lock Bolt
    from $6.79
    (11)
    Differential Shaft Lock Bolt
    “Exactly like OEM”
    Differential Plug, Rubber
    from $7.99
    (11)
    Differential Plug, Rubber
    “It’s a plug”
    Differential Ring and Pinion Set
    from $384.99
    (2)
    Differential Ring and Pinion Set
    “good”

    FAQs for 1986 Dodge Diplomat Differentials

    What are the best-selling Differentials for 1986 Dodge Diplomats?

    Out of 158 Differentials that fit 1986 Dodge Diplomats, the following parts are the top sellers:

    What’s the price range for 1986 Dodge Diplomat Differentials?

    The prices of Differentials for the 1986 Dodge Diplomat range from $2.99 up to $1,080.99 for the most premium parts.

    What is the average price of a Differential for a 1986 Dodge Diplomat?

    The average price for Differentials for the 1986 Dodge Diplomat is $210.98. 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 Diplomat model years?

    Yes, we carry Differentials for 11 model years of Dodge Diplomats between 1977 and 1989. The following model years are the most popular for Differential purchases: 1989, 1988, 1987, 1985, 1984, 1983, 1982, 1981, and 1980.

    What are the cheapest Differentials for my 1986 Dodge Diplomat?

    The cheapest 1986 Dodge Diplomat Differentials we carry are:

    Does Advance Auto Parts sell Differentials for any other 1986 Dodge models?

    Yes. We stock Differentials for 23 other popular 1986 Dodge models. Some of the most popular are 1986 Charger Differentials, 1986 Caravan Differentials, 1986 Ramcharger Differentials, 1986 W150 Differentials, and 1986 D150 Differentials.

    What are the top-rated Differentials that fit the 1986 Dodge Diplomat?

    Based on 296 reviews by customers, our 1986 Dodge Diplomat Differentials have an average customer rating of 4 stars. These are the highest-rated categories of Differentials for the 1986 Dodge Diplomat and their top-rated products:

    What types of Differentials do you sell for my 1986 Dodge Diplomat?

    As of 11/2/25, these are some of the most in-demand types of Differentials for a 1986 Dodge Diplomat:

    Can I get help with 1986 Dodge Diplomat 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 Diplomat Differentials?

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