1971 Plymouth Duster Differentials

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Keep Your 1971 Plymouth Duster in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1971 Plymouth Duster looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Covers, Differential Oil, and Rear Differential Cover Gaskets. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Differentials from Trusted Brands

Looking for a reliable Differential? We’ve got you covered with options from brands you know and trust like Motive Gear, National, and Felpro. For example, Motive Gear Differentials start at just $7.99 with an average 4.0 star rating. National and Felpro offer similar pricing and quality, backed by strong customer feedback. With over 288 reviews and a solid 4 star average, you can shop with confidence knowing other Plymouth Duster owners approve.

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 1971 Plymouth Duster in peak condition, inside and out.

Essential 1971 Plymouth Duster Differentials

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

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

from

$37.99
Yukon Mighty Seals use the latest design and manufacturing technologies to produce a precision fit that seals tight and lasts for years to come.

Product Features:
  • Redi-Sleeve yoke saver
  • Fits Chrysler 8.75″ and 9.25″ rear, Dana Spicer 60, 70, 70U and 70HD
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Yukon Gear – Set Up Bearing (Part No.56046)

Set Up Bearing

from

$153.99
Yukon Gear & Axle offers a full line of top quality differential tools to save time and money.

Product Features:
  • Easily slips on and off pinion journal to allow for pinion depth adjustment
  • Fits HM804049 pinion bearing
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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
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.

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 – Master Overhaul Kit for Dana 60 and 61 Rear Differential (Part No.14037)

Master Overhaul Kit for Dana 60 and 61 Rear Differential

from

$414.99
Yukon Master Overhaul Kits give you all the high-quality parts you need to start and finish every differential job. Yukon offers more tailor-made kits than any other manufacturer in the industry to meet your specific installation needs. This kit uses Timken bearings and races along with high quality seals and small parts. Yukon Master Overhaul Kits are the most comprehensive and complete kits on the market because Yukon does extensive research to ensure that every kit has everything you need for your application.

Product Features:
  • Included are Timken bearings and races along with high quality seals and small parts.
  • Included in this kit are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve , oil baffles and slingers , thread locker, marking compound with brush, and gasket.
  • Fits Dana Spicer 60 rear
See More

Yukon Gear – Standard Open Spider Gear Kit for ’96 and Older 8.25" Chrysler, 27 Spline (Part No.16002)

Standard Open Spider Gear Kit for '96 and Older 8.25" Chrysler, 27 Spline

from

$301.99
Yukon Gear & Axle spider gear kits feature higher quality materials and better manufacturing techniques than OEM to ensure a longer lasting spider gear set. Kit delivers everything needed for a complete and proper spider gear set replacement.

Product Features:
  • Spider gear kit
  • Fit Chrysler 8.25″ open differential with 27 spline axles
  • Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider 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
The Yukon Grizzly Locker is the ultimate in locking differentials for street, off-road, & drag racing. Grizzly Lockers provide 100% power to both tires, while still allowing for disengagement while negotiating turns. The Yukon Grizzly locker is a mechanical locking differential. It features a forged case and 8620 internals for maximum strength. It’s patented design reduces common locker failures. All units assembled in the USA! All Grizzly Lockers are backed by the best warranty in the business! Yukon covers the replacement unit and covers any collaterally damaged parts and associated labor, up to $2,000!

Product Features:
  • Outer oil slinger for Dana Spicer 60, 70, 70U and 70HD
See More

Yukon Gear – Seal Housing for Dana 60, Zip Locker, with O-Rings (Part No.34039)

Seal Housing for Dana 60, Zip Locker, with O-Rings

from

$79.99
The Yukon Zip Locker is the latest in on-demand traction. Its air-operated design allows you to switch from an open differential to 100% lockup when you need it, giving you the ultimate in driver select ability.

Product Features:
  • Seal housing for Dana Spicer 60
  • Includes O-rings
See More

Yukon Gear – Replacement Carrier Shim Kit for Dana 60, 70, 70HD, 70U & 80 (Part No.55011)

Replacement Carrier Shim Kit for Dana 60, 70, 70HD, 70U & 80

from

$13.99
Yukon shim kits are precision machined and tailored for each individual application to ensure you have the right shims for every set up.

Product Features:
  • Carrier shim kit for Dana Spicer 60, 70, 70HD, 70U and 80
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USA Standard Gear – Power Lok Positraction for Chrysler 8.75" (Part No.59027)

Power Lok Positraction for Chrysler 8.75"

from

$1015.00
USA Standard Gear Power Lok posi for Chrysler 8.75″, smooth design

Product Features:
  • Gear Power Lok Posi LSD
  • Fits Chrysler 8.75″
  • Smooth design
  • Positraction
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USA Standard Gear – 8.75" Chrysler 89 Drop Out Case, Up To 500 Hp, Nodular Iron (Part No.59001)

8.75" Chrysler 89 Drop Out Case, Up To 500 Hp, Nodular Iron

from

$474.99
Model 35 IFS front spindle, 90-93 Ranger & Explorer.

Product Features:
  • Dropout housing
  • Fits Chrylser 8.75″
  • ’89’ case design
  • Nodular iron for added strength
See More

Yukon Gear – Preload Shim Kit for Chrysler 8.75" & Ford 9" (Part No.55030)

Preload Shim Kit for Chrysler 8.75" & Ford 9"

from

$21.99
Yukon shim kits are precision machined and tailored for each individual application to ensure you have the right shims for every set up.

Product Features:
  • Preload shim kit for Ford 9″ and Chrysler 8.75″ with ’41’ and ’42’ case housing
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Yukon Gear – Steel Cover for Chrysler 8.25" (Part No.32312)

Steel Cover for Chrysler 8.25"

from

$159.99
These Yukon replacement diff covers are a direct bolt-on.

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

Yukon Gear – Pinion Install Kit for Chrysler 8.75" (#42) Differential (Part No.13006)

Pinion Install Kit for Chrysler 8.75" (#42) Differential

from

$359.99
Yukon Pinion Installation Kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings and races can be reused. This kit features Timken bearings and races along with high-quality seals and small parts. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your gear set.

Product Features:
  • Fits Chrysler 8.75″ ’42’ case
  • Included are pinion bearings and races, pinion seal, pinion nut, complete pinion shim kit, and marking compound with brush.
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Powertrax – Grip LS Traction System (Part No.LS308229)

Grip LS Traction System

from

$505.99
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 – Roll Pin, Dana 50//60/70/80, 0.225" Dia, for X/P Shaft, 1.87" L (Part No.33327)

Roll Pin, Dana 50//60/70/80, 0.225" Dia, for X/P Shaft, 1.87" L

from

$7.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.

Product Features:
  • Roll pin for Dana Spicer 50, 60, 70, 70U, 70HD and 80
  • 0.225″ diameter
  • 1.870″ long
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Yukon Gear – Air Line Repair Kit, Zip Locker (Part No.34003)

Air Line Repair Kit, Zip Locker

from

$52.99
The Yukon Zip Locker is the latest in on-demand traction. Its air-operated design allows you to switch from an open differential to 100% lockup when you need it, giving you the ultimate in driver select ability.

Product Features:
  • Air line repair kit
  • Includes 20′ air line and two repair fittings
See More

Yukon Gear – Bolt/Screw for Adjuster Lock for Chrysler 7.25", 8.25", 8.75", 9.25" (Part No.33233)

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

from

$15.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.

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

USA Standard Gear – Differential Rebuild Kit (Part No.37001)

Differential Rebuild Kit

from

$189.99
USA Standard Master Overhaul kits let you finish your install with confidence. This kit uses Koyo bearings and races. Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable), threading locking compound, marking compound with brush and gasket.

Product Features:
  • Fits 1976-2004 Chrysler 8.25″
  • Uses Koyo bearings and races
  • Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve, thread locker, marking compound with brush and gasket.
See More

Yukon Gear – Grizzly Locker For Dana 60, 4.56 & Up, 35 Spline (Part No.28005)

Grizzly Locker For Dana 60, 4.56 & Up, 35 Spline

from

$1050.00
The Yukon Grizzly Locker is the ultimate in locking differentials for street, off-road, & drag racing. Grizzly Lockers provide 100% power to both tires, while still allowing for disengagement while negotiating turns. The Yukon Grizzly locker is a mechanical locking differential. It features a forged case and 8620 internals for maximum strength. It’s patented design reduces common locker failures. All units assembled in the USA! All Grizzly Lockers are backed by the best warranty in the business! Yukon covers the replacement unit and covers any collaterally damaged parts and associated labor, up to $2,000! This is a narrow case locker. If you have a wide housing, please order two DS 42563 with your locker. This locker is ABS compatible.

Product Features:
  • Fits Dana Spicer 60 with 35 spline axles
  • 4.56 and up ratio only
  • Patented internal design reduces common locker failures
  • 8620 internals for added strength
  • Assembled in the USA
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Yukon Gear – Replacement Ring Gear Bolt For Dana 60, 70, 70U & 70HD, 1/2" X 18 (Part No.33037)

Replacement Ring Gear Bolt For Dana 60, 70, 70U & 70HD, 1/2" X 18

from

$4.99
Replacement ring gear bolt for Dana 60, 70, 70U & 70HD, 1/2″ x 18.

Product Features:
  • Ring gear bolt for Dana Spicer 60, 70, 70U and 70HD
  • 1/2″ x 18 thread
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Yukon Gear – Replacement Trail Repair Kit For Dana 60 With 1350 Size U/Joint And U-Bolts (Part No.32284)

Replacement Trail Repair Kit For Dana 60 With 1350 Size U/Joint And U-Bolts

from

$239.99
Yukon replacement trail repair kit for Dana 60 with 1350 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
  • 1350 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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USA Standard Gear – Differential Cross Pin (Part No.17035)

Differential Cross Pin

from

$49.99
Yukon Pinion installation kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings & races can be reused. This kit uses Timken bearings and races along with a high quality pinion seal and small parts. Included in this kit are the pinion bearings and races, pilot bearing (if applicable), crush sleeve (if applicable), complete pinion shim kit, pinion nut, thread locker, and marking compound with brush. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your pinion gear.

Product Features:
  • USA Standard Gear heavy-duty cross pin shaft
  • Fits Chrylser 8.25″ with 27 and 29 spline axles
  • Works with Spartan Locker or standard open spider gears
See More

Yukon Gear – 3 Qt – 80W90 Conventional Gear Oil with Posi Additive (Part No.15003)

3 Qt - 80W90 Conventional Gear Oil with Posi Additive

from

$57.99
Union 76 gear oil is a conventional non-synthetic 80W90 formulation designed for all types of differentials. This kit includes three quarts of oil and a bottle of Yukon Limited Slip Friction modifier that reduces noise and chatter in clutch driven positraction units and limited slip differentials.

Product Features:
  • Includes three quarts of conventional oil and one 4oz bottle of Yukon positraction additive
See More

National – Differential Pinion Seal (Part No.8515N)

Differential Pinion Seal

from

$21.49
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • 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 – Pinion Nut for Dana 44 JK, 44HD, 60, 70, 70U, 70HD & Nissan M226 Rear (Part No.33144)

Pinion Nut for Dana 44 JK, 44HD, 60, 70, 70U, 70HD & Nissan M226 Rear

from

$7.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.

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
See More

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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USA Standard Gear – Differential Open Unit/Component (Part No.17038)

Differential Open Unit/Component

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 Limited 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

Popular 1971 Plymouth Duster Differentials Categories

Most Popular Differential Covers for 1971 Plymouth Dusters

Enhance your 1971 Plymouth Duster with one of the 3 Differential Covers we have in stock, starting at just $89.99.

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

Steel Cover for Chrysler 8.25"

from

$159.99
These Yukon replacement diff covers are a direct bolt-on.

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

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

Steel Cover for Dana 60 Standard Rotation

from

$114.99
These Yukon replacement diff covers are a direct bolt-on.

Product Features:
  • Fits standard rotation Dana Spicer 60
  • Steel
See More

Yukon Gear – Standard Rotation Dana 60 Chrome Differential Cover (Part No.32005)

Standard Rotation Dana 60 Chrome Differential Cover

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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Best-Selling 1971 Plymouth Duster Differential Oil

Upgrade your Duster with one of our 5 best-selling Differential Oil.

Yukon Gear – 3 Qt – 80W90 Conventional Gear Oil with Posi Additive (Part No.15003)

3 Qt - 80W90 Conventional Gear Oil with Posi Additive

from

$57.99
Union 76 gear oil is a conventional non-synthetic 80W90 formulation designed for all types of differentials. This kit includes three quarts of oil and a bottle of Yukon Limited Slip Friction modifier that reduces noise and chatter in clutch driven positraction units and limited slip differentials.

Product Features:
  • Includes three quarts of conventional oil and one 4oz bottle of Yukon positraction additive
See More

Yukon Gear – 3 Qt – Penzoil 80W90 Conventional Gear Oil (Part No.15002)

3 Qt - Penzoil 80W90 Conventional Gear Oil

from

$44.99
Union 76 gear oil is a conventional non-synthetic 80W90 formulation designed for all types of differentials.

Product Features:
  • Includes three quarts of conventional oil
See More

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 Heavy Shockproof Gear Oil is formulated to provide lasting protection. This kit includes four quarts of oil and a bottle of Yukon Limited Slip Friction modifier that reduces noise and chatter in clutch driven positraction units and limited slip differentials.

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 Heavy Shockproof Gear Oil is formulated to provide lasting protection.

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 Heavy Shockproof Gear Oil is formulated to provide lasting protection.

Product Features:
  • Includes four quarts of Redline Shockproof oil
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Top-Quality Rear Differential Cover Gaskets for 1971 Plymouth Dusters

Choose a high-quality OEM or aftermarket Rear Differential Cover Gasket for Plymouth Dusters and enjoy top-notch performance from $8.49.

Yukon Gear – 8.75" Chrysler Gasket (Part No.23001)

8.75" Chrysler Gasket

from

$12.99
8.75″ Chrysler gasket.

Product Features:
  • Dropout gasket
  • Fits Chrysler 8.75″
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Mr. Gasket – Differential Gasket (Part No.81)

Differential Gasket

from

$22.79
Mr. Gasket Axle Housing/Differential Cover or Rear End Gaskets are manufactured from a .047 inch thick cellulose/nitrile composite gasket material for excellent sealing and durability. They are precision die-cut for an excellent fit.

Product Features:
  • .047″ thick cellulose/nitrile composite gasket material
  • Precision die cut
  • Reusable
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″
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Victor Reinz – Differential Cover Gasket (Part No.71-14825-00)

Differential Cover Gasket

from

$8.49
Product Features:
  • Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
  • Dana engineering-approved for fit, form and function
  • Meets or exceeds OE specifications
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Top Picks for 1971 Plymouth Duster Differential Bearings

Invest in one of our 6 durable Differential Bearings for your 1971 Plymouth, knowing you’re getting trusted brands and expert craftsmanship.

National – Multi-Purpose Bearing (Part No.A-6)

Multi-Purpose Bearing

from

$16.99
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

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
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National – Tapered Roller Bearing Cone (Part No.25590)

Tapered Roller Bearing Cone

from

$27.99
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

Schaeffler – Wheel Balancer Cone (Part No.KLM104949)

Wheel Balancer Cone

from

$17.99
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 – 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
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.

Product Features:
  • Cross pin bolt for AMC Model 35 with c-clip axles
See More

Schaeffler – Cup (Part No.M88010)

Cup

from

$10.99
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
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.

Product Features:
  • Cross pin bolt for Chrysler 8.25″ and 9.25″ rear, Ford 7.5″ and 8.8″, GM 12 bolt car and truck, 8.5″, 8.25″ IFS, 8.0″, 7.625″, 7.5″ and 7.2″ IFS
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Top-Rated Differential Pinion Seals for 1971 Plymouth Dusters

Make a smart move for your 1971 Plymouth Duster with products all priced from $10.49 to $21.49.

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

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: -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

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
Yukon Mighty Seals use the latest design and manufacturing technologies to produce a precision fit that seals tight and lasts for years to come.

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

National – Differential Pinion Seal (Part No.8515N)

Differential Pinion Seal

from

$21.49
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • 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 – 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
Yukon Mighty Seals use the latest design and manufacturing technologies to produce a precision fit that seals tight and lasts for years to come.

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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Driveworks – Oil Seal (Part No.S-7215)

Oil Seal

from

$10.49
Oil Seal

Top-Rated Differential Brands For Your 1971 Plymouth Duster

When it comes to finding the perfect Differential for your 1971 Plymouth Duster, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 14 trusted brands. We carry the most popular Differential brands including Felpro, National, and Motive Gear, and more, all known for their exceptional customer ratings (average brand rating of 4.6 stars) and competitive prices, as low as $7.49. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1971 Plymouth Duster, providing peace of mind with parts that meet or exceed OEM standards.

Popular Felpro 1971 Plymouth Duster Differentials

If you’re looking for a top-quality Differential for your 1971 Plymouth Duster, Advance Auto Parts has exactly what you need with our selection of Felpro Differentials. We have 1 Felpro Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $7.49, you’ll find the perfect Differential for your needs and budget. Felpro Differentials for the 1971 Plymouth Duster come highly rated, with over 1 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 $7.49
(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”

Top-Quality National 1971 Plymouth Duster Differentials

For those in search of a high-quality Differential for their 1971 Plymouth Duster, Advance Auto Parts offers a great selection of National Differentials. With 2 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 $16.99, giving you a range of options to suit your budget. Backed by over 26 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.
Multi-Purpose Bearing
from $16.99
(25)
Multi-Purpose Bearing
“Smooth”
Multi-Purpose Seal
from $16.99
(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”

FAQs for 1971 Plymouth Duster Differentials

What are the best-selling Differentials for 1971 Plymouth Dusters?

Out of 242 Differentials that fit 1971 Plymouth Dusters, the following parts are the top sellers:

What’s the price range for 1971 Plymouth Duster Differentials?

The prices of Differentials for the 1971 Plymouth Duster range from $3.99 up to $1,191.99 for the most premium parts.

What is the average price of a Differential for a 1971 Plymouth Duster?

The average price for Differentials for the 1971 Plymouth Duster is $230.54. 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 Plymouth Duster model years?

Yes, we carry Differentials for 5 model years of Plymouth Dusters between 1970 and 1976. The following model years are the most popular for Differential purchases: 1976, 1975, 1974, 1973, 1972, and 1970.

What are the cheapest Differentials for my 1971 Plymouth Duster?

Does Advance Auto Parts sell Differentials for any other 1971 Plymouth models?

Yes. We stock Differentials for 11 other popular 1971 Plymouth models. Some of the most popular are 1971 Barracuda Differentials, 1971 Belvedere Differentials, 1971 GTX Differentials, 1971 Cricket Differentials, and 1971 Fury Differentials.

What types of Differentials do you sell for my 1971 Plymouth Duster?

As of 6/2/26, these are some of the most in-demand types of Differentials for a 1971 Plymouth Duster:

Can I get help with 1971 Plymouth Duster Differential orders?

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

What is your return policy for Plymouth Duster Differentials?

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