1966 Dodge D300 Series Differentials

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Keep Your 1966 Dodge D300 Series in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1966 Dodge D300 Series looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Rear Housing Cover Gaskets, 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 Felpro, National, and Motive Gear. For example, Felpro Differentials start at just $7.49 with an average 4.6 star rating. National and Motive Gear offer similar pricing and quality, backed by strong customer feedback. With over 20 reviews and a solid 5 star average, you can shop with confidence knowing other Dodge D300 Series owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1966 Dodge D300 Series Differential at Advance Auto Parts is around $298.19, with a range that starts at $3.99 and goes up to $1,566.99. With 233 options in stock from 12 trusted brands, finding the right fit is easy. Popular picks like 3 Qt – 80W90 Conventional Gear Oil With Posi Additive, 3 Qt – Penzoil 80W90 Conventional Gear Oil, and Dana 60, Dana 70 & Dana 80 Cover Bolt start at just $5.99 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 1966 Dodge D300 Series in peak condition, inside and out.

Find Your Specific 1966 Dodge D300 Series Differentials

Looking for the perfect Differential for your 1966 Dodge D300 Series? You’re in the right place. Below, you’ll find links to various types of Differentials that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Differentials, ensuring durability and a precise fit for your Dodge D300 Series. Whether you’re driving a 1966 model or another popular model year like 1960, 1961, 1962, 1963, 1964, 1965, and 1967, we’ve got you covered. Purchasing Differentials from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Differentials that fit your vehicle.

Essential 1966 Dodge D300 Series Differentials

Yukon Gear – Replacement Standard Open Carrier Case For Dana 60, 4.56 & Up (Part No.20046)

Replacement Standard Open Carrier Case For Dana 60, 4.56 & Up

from

$389.99
Yukon replacement standard open carrier case for Dana 60, 4.56 & up (incl ABS) 2-7/16″ tall.

Product Features:
  • Standard open carrier case
  • Does not include spider gears
  • Fits Dana Spicer 60
  • 4.56 and up ratio only
  • ABS and non-ABS compatible
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Yukon Gear – Dana 50 Dana 60 Dana 70 & Dana 80 Roll Pin, 0.225" Dia, For X/P Shaft, 1.87" Lng (Part No.33327)

Dana 50 Dana 60 Dana 70 & Dana 80 Roll Pin, 0.225" Dia, For X/P Shaft, 1.87" Lng

from

$7.99
Dana 50 Dana 60 Dana 70 & Dana 80 roll PIN, 0.225″ DIA, for X/P shaft, 1.87″ LNG.

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 – Replacement Inner Slinger For Dana 60 (Part No.33014)

Replacement Inner Slinger For Dana 60

from

$9.99
Product Features:
  • Inner oil slinger for Dana Spicer 60
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Yukon Gear – Replacement Baffle For Dana 70 & 70HD (Part No.33003)

Replacement Baffle For Dana 70 & 70HD

from

$7.99
Product Features:
  • Oil baffle
  • Fits Dana Spicer 70 and 70HD
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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
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 – Chrysler 8.75" (Coarse Spline) Pinion Nut Washer (Part No.33162)

Chrysler 8.75" (Coarse Spline) Pinion Nut Washer

from

$9.99
Chrysler 8.75″ (coarse spline) pinion nut washer.

Product Features:
  • Pinion nut washer
  • Fits Chrysler 8.75″ with 10 spline pinion
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USA Standard Gear – Replacement Ring & Pinion Gear Set For Dana 70 In A 4.56 Ratio (Part No.36090)

Replacement Ring & Pinion Gear Set For Dana 70 In A 4.56 Ratio

from

$379.99
USA Standard ring & pinion sets are the right choice to add confidence to your install. USA Standard Gear offers a full line of ring & pinion sets for a variety of common & hard to find applications. USA standard gear offers a standard one year warranty against defects on their ring & pinion sets.

Product Features:
  • Fits Dana Spicer 70
  • 10.50″ ring gear diameter
  • 29 spline pinion
  • 12 ring gear bolts
  • 4.56 ratio
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Yukon Gear – Replacement Standard Open Spider Gear Kit For Dana 70 And 80 With 35 Spline Axles, XHD Design (Part No.16181)

Replacement Standard Open Spider Gear Kit For Dana 70 And 80 With 35 Spline Axles, XHD Design

from

$289.99
Yukon replacement standard open spider gear kit for Dana 70 and 80 with 35 spline axles. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. All components come with a one year warranty against manufacturing defects.
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Yukon Gear – Set Up Bearing (Part No.56039)

Set Up Bearing

from

$276.99
Set-up carrier bearing kit (2 bearings, no races) for Dana 60 and 70. 387A. No return.

Product Features:
  • Set up bearing kit
  • Fits Dana Spicer 60
  • Easily slips on and off carrier journals to allow for easier carrier shim adjustment
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Yukon Gear – Replacement Crush Sleeve For Dana 60 (Part No.33089)

Replacement Crush Sleeve For Dana 60

from

$8.99
Replacement crush sleeve for Dana 60, APROX 0.660″ long.

Product Features:
  • Crush sleeve for Dana Spicer 60
  • 0.660″ tall
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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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Yukon Gear – The Carrier Bearing Puller (Part No.56034)

The Carrier Bearing Puller

from

$689.99
The Yukon carrier bearing Puller works with an impact gun to quickly and safely remove carrier bearings without damaging them. This unit comes with a handy bench top stand and works with up to most standard one ton applications. This unit is works with differentials up to one-ton applcations. It is not compatible with Dana 70HD, Dana 80, 10.25″ & 10.5″ Ford, or GM & Chrysler 11.5″ differentials.

Product Features:
  • Carrier bearing puller
  • Works with an impact gun to safely and easliy remove carrrier bearings
  • Not compatible with Dana 70HD, Dana 80, Ford 10.25″ and 10.5″ or Gm and Chrysler 11.5″ applications
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Felpro – Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket (Part No.RDS 6014)

Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket

from

$17.99
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
  • Unsurpassed quality you can trust
  • Validated for fit, form and function
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
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(1 reviews)
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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
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Yukon Gear – Replacement Cover Gasket For Dana 50, Dana 60 & Dana 70 (Part No.23007)

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

from

$13.99
Product Features:
  • Cover gasket
  • Fits Dana Spicer 60, 70, 70U and 70HD
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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
Bolt/screw for adjuster lock for Chrysler 7.25″, 8.25″, 8.75″, 9.25″.

Product Features:
  • Side adjuster lock bolt
  • Fits Chrysler 7.25″, 8.25″, 8.75″ and 9.25″
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Felpro – Differential Carrier Gasket Round Shaped 10 Bolt Hole Gasket (Part No.RDS 6583)

Differential Carrier Gasket Round Shaped 10 Bolt Hole Gasket

from

$7.49
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:
  • DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
  • SEALING TECHNOLOGIES — Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
  • ENGINEERING EXPERTISE — Parts are designed, reviewed, validated and approved by Fel-Pro engineers through rigorous research and development
  • REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road
  • EVERY PART FOR THE REPAIR — Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
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(1 reviews)
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Motive Gear – Differential Pinion Shim Kit (Part No.1118)

Differential Pinion Shim Kit

from

$6.99


Product Features:
  • DANA PRELOAD SHIMS (D60 & D70)
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Yukon Gear – Full-Floating, Blank 35 Spline Diameter, Non-Drilled Axle Shaft For Dana 60 (Part No.21005)

Full-Floating, Blank 35 Spline Diameter, Non-Drilled Axle Shaft For Dana 60

from

$232.99
Full-floating, 35 spline diameter, non-drilled blank axle shaft for Dana 60. 40″ inches long. Yukon 1541H alloy axles offer a strength increase over stock while retaining a low cost. Yukon 1541H axles come with a one year warranty against manufacturing defects.
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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
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USA Standard Gear – Spartan Locker for Dana 60 Differential with 35 Spline Axles, Includes Heavy-duty Cross Pin Shaft (Part No.17004)

Spartan Locker for Dana 60 Differential with 35 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 Dana Spicer 60 with 35 spline axles
  • Made from 9310 steel for added strength
  • Replaces the spiders in a standard carrier case
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Yukon Gear – Chrysler 8.75" (Coarse Spline) Pinion Nut (Part No.33137)

Chrysler 8.75" (Coarse Spline) Pinion Nut

from

$5.99
Chrysler 8.75″ (coarse spline) pinion nut. 3/4″ x 16.

Product Features:
  • Pinion nut
  • Fits Chrysler 8.75″ with 10 spline pinion
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Yukon Gear – Ring Gear Bolt For Chrysler 7.25", 8" IFS, 8.25", 8.75" & GM 7.2" IFS Front (Part No.33035)

Ring Gear Bolt For Chrysler 7.25", 8" IFS, 8.25", 8.75" & GM 7.2" IFS Front

from

$8.99
Ring gear bolt for Chrysler 7.25″, 8″ IFS, 8.25″, 8.75″ & GM 7.2″ IFS front. 3/8″ x 24.

Product Features:
  • Ring gear bolt for Chrysler 7.25″, 8.0″ IFS and 8.75″
  • 3/8″ x 24 thread
  • .866″ long
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Yukon Gear – Replacement Standard Open Spider Gear Kit For Dana 70 And 80 With 35 Spline Axles (Part No.16093)

Replacement Standard Open Spider Gear Kit For Dana 70 And 80 With 35 Spline Axles

from

$247.99
Yukon replacement standard open spider gear kit for Dana 70 and 80 with 35 spline axles. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. All components come with a one year warranty against manufacturing defects.

Product Features:
  • Spider gear kit
  • Fit Dana Spicer 70 and 80 open differential with 35 spline axles
  • Includes two side gears, two pinion gears, cross pin shaft, roll pin and spider gear thrust washers.
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Yukon Gear – Minor Install Kit For Chrysler 42 8.75" Differential (Part No.12006)

Minor Install Kit For Chrysler 42 8.75" Differential

from

$142.99
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 8.75″ ’42’ case
  • Included are a pinion seal, pinion nut, completete shim kit, marking compound and brush.
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Dorman – Differential Pinion Yoke Assembly (Part No.697-544)

Differential Pinion Yoke Assembly

from

$183.99
Worn or damaged differential end yoke causing driveline Vibrations! This direct replacement end yoke matches the original equipment part for a trustworthy repair and reliable performance.

Product Features:
  • Direct replacement – this differential end yoke matches the fit and construction of the original yoke
  • Excellent value – this replacement end yoke offers original equipment quality at a fraction of the price of dealer parts
  • Quality materials – this end yoke is machined from cast iron for strength and is precision machined for reliability
  • Validated fit – this differential end yoke has been tested to confirm accurate fit
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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
Product Features:
  • Dropout housing
  • Fits Chrylser 8.75″
  • ’89’ case design
  • Nodular iron for added strength
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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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Popular 1966 Dodge D300 Series Differentials Categories

Differential Oil
Differential Oil
Rear Differential Cover Gaskets
Rear Differential Cover Gaskets
Differential Open Unit and Components
Differential Open Unit and Components
Differential Covers
Differential Covers
Differential Pinion Shaft Lock Bolts
Differential Pinion Shaft Lock Bolts
Differential Bearings
Differential Bearings
Differential Axle Shafts
Differential Axle Shafts
Differential Pinion Pilot Bearings
Differential Pinion Pilot Bearings
Differential Cover Bolts
Differential Cover Bolts
Differential Carriers
Differential Carriers
Differential Bearing Kits
Differential Bearing Kits
Front Differential Pinion Bearings
Front Differential Pinion Bearings
Differential Spider Gear Kits
Differential Spider Gear Kits
Differential Rebuild Kits
Differential Rebuild Kits
Differential Carrier Shim Kits
Differential Carrier Shim Kits
Differential Pinion Seals
Differential Pinion Seals
Differential Clutch Packs
Differential Clutch Packs
Differential Ring and Pinions
Differential Ring and Pinions
Differential Cases
Differential Cases
Differential End Yokes
Differential End Yokes
Differential Lock Assemblies
Differential Lock Assemblies
Differential Air System Seal Housings
Differential Air System Seal Housings
Differential Spools
Differential Spools
Differential Carrier Bearings
Differential Carrier Bearings
Front Differential Cover Gaskets
Front Differential Cover Gaskets
Rear Housing Cover Gaskets
Rear Housing Cover Gaskets
Differential Pinion Bearing Kits
Differential Pinion Bearing Kits
Complete Differentials
Complete Differentials
Differential Ring Gear Bolts
Differential Ring Gear Bolts
Bearing Race Drivers
Bearing Race Drivers
Differential Carrier Bearing Shims
Differential Carrier Bearing Shims
Differential Crush Sleeves
Differential Crush Sleeves
Differential Side Bearing Spacers
Differential Side Bearing Spacers
Differential Pinion Shims
Differential Pinion Shims
Differential Pinion Shaft Nuts
Differential Pinion Shaft Nuts
Differential Gear Install Kits
Differential Gear Install Kits
Differential Cross Pins
Differential Cross Pins
Automatic Transmission Differential Carrier Gaskets
Automatic Transmission Differential Carrier Gaskets
Differential Housing O-Rings
Differential Housing O-Rings
Differential Side Gear Thrust Washers
Differential Side Gear Thrust Washers
Differential Pinion Bearing Baffles
Differential Pinion Bearing Baffles
Differential Pinion Gear Thrust Washers
Differential Pinion Gear Thrust Washers
Differential Drive Pinion Oil Deflectors
Differential Drive Pinion Oil Deflectors
Differential Carrier Bolts
Differential Carrier Bolts
Differential Pinion Gear Washers
Differential Pinion Gear Washers
Differential Ring and Pinion Kits
Differential Ring and Pinion Kits
Limited Slip Differential Assemblies
Limited Slip Differential Assemblies
Differential Clutch Pack Clips
Differential Clutch Pack Clips
Differential Bearing Adjuster Nut Lock Bolts
Differential Bearing Adjuster Nut Lock Bolts
Differential Lock Thrust Blocks
Differential Lock Thrust Blocks

Most Popular Rear Housing Cover Gaskets for 1966 Dodge D300 Series

Enhance your 1966 Dodge D300 Series with one of the 2 Rear Housing Cover Gaskets we have in stock, starting at just $9.49.
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Felpro – Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket (Part No.RDS 6014)

Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket

from

$17.99
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
  • Unsurpassed quality you can trust
  • Validated for fit, form and function
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
See More

(1 reviews)
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Felpro – Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket (Part No.RDS 6095-1)

Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket

from

$9.49
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

(4 reviews)
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Best-Selling 1966 Dodge D300 Series Differential Oil

Upgrade your D300 Series with one of our 5 best-selling Differential Oil.
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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
3 Qt. Penzoil 80W90 conventional gear Oil. W/ bottle of Posi additive.

Product Features:
  • Includes three quarts of conventional oil and one 4oz bottle of Yukon positraction additive
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Yukon Gear – 3 Qt – Penzoil 80W90 Conventional Gear Oil (Part No.15002)

3 Qt - Penzoil 80W90 Conventional Gear Oil

from

$44.99
3 Qt. Penzoil 80W90 conventional gear Oil.

Product Features:
  • Includes three quarts of conventional oil
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Yukon Gear – Redline Synthetic "Shock Proof" Oil With Positraction Additive – 4 Quarts (Part No.15005)

Redline Synthetic "Shock Proof" Oil With Positraction Additive - 4 Quarts

from

$148.99
Redline Synthetic “Shock Proof” Oil with positraction Additive. 4 Quarts.

Product Features:
  • Includes four quarts of Redline Shockproof oil and one 4oz bottle of Yukon positraction additive
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Yukon Gear – Redline Synthetic "Shock Proof" Oil – 3 Quarts (Part No.15000)

Redline Synthetic "Shock Proof" Oil - 3 Quarts

from

$99.99
Redline Synthetic “Shock Proof” Oil. 3 Quarts.

Product Features:
  • Includes three quarts of Redline Shockproof oil
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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
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Top-Quality Differential Bearings for 1966 Dodge D300 Series

Choose a high-quality OEM or aftermarket Differential Bearing for Dodge D300 Series and enjoy top-notch performance from $15.99.
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National – Tapered Roller Bearing Cone (Part No.368A)

Tapered Roller Bearing Cone

from

$22.99
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
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(1 reviews)
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National – Bearing Race (Part No.362A)

Bearing Race

from

$15.99
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
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National – Bearing Race (Part No.382S)

Bearing Race

from

$17.99
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
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National – Tapered Roller Bearing Cone (Part No.28580)

Tapered Roller Bearing Cone

from

$48.99
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
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Schaeffler – Cone (Part No.K387-A)

Cone

from

$46.99
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
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Our Top Pick for a 1966 Dodge D300 Series Rear Differential Cover Gasket

Invest in a durable Rear Differential Cover Gasket for your 1966 Dodge, knowing you’re getting trusted brands and expert craftsmanship.
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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″
See More
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Differential Covers for 1966 Dodge D300 Series

Make a smart move for your 1966 Dodge D300 Series with products all priced from $89.99 to $288.99.
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Yukon Gear – Steel Cover For Dana 70 (Part No.32322)

Steel Cover For Dana 70

from

$149.99
Product Features:
  • Fits Dana Spicer 70
  • Steel
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Yukon Gear – Steel Cover For Dana 60 Standard Rotation (Part No.32321)

Steel Cover For Dana 60 Standard Rotation

from

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

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

from

$288.99
Product Features:
  • Nodular iron for added strength
  • Thick design
  • Durable powder coat finish
  • Magnetic drain plug
  • Made in USA
  • High strength stainless steel fasteners
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Yukon Gear – Chrome Replacement Cover For Dana 60 And 61 Standard Rotation (Part No.32005)

Chrome Replacement Cover For Dana 60 And 61 Standard Rotation

from

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

Product Features:
  • Fits standard rotation Dana Spicer 60
  • Chrome
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Top-Rated Differential Brands For Your 1966 Dodge D300 Series

When it comes to finding the perfect Differential for your 1966 Dodge D300 Series, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 12 trusted brands. We carry the most popular Differential brands including Felpro, National, and 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 1966 Dodge D300 Series, providing peace of mind with parts that meet or exceed OEM standards.

Popular Felpro 1966 Dodge D300 Series Differentials

If you’re looking for a top-quality Differential for your 1966 Dodge D300 Series, Advance Auto Parts has exactly what you need with our selection of Felpro Differentials. We have 2 Felpro Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $7.49 and an average cost of $12.74, you’ll find the perfect Differential for your needs and budget. Felpro Differentials for the 1966 Dodge D300 Series come highly rated, with over 2 customer reviews and an impressive average rating of 4.6 stars. Choosing a Felpro Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket
from $17.99
(1)
Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket
“OEM only uses silicone , the gasket set with a thin layer of silicone is a much better sealant method”
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 1966 Dodge D300 Series Differentials

For those in search of a high-quality Differential for their 1966 Dodge D300 Series, 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 $22.99, with an average price of $30.99, giving you a range of options to suit your budget. Backed by over 3 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.
Tapered Roller Bearing Cone
from $38.99
(2)
Tapered Roller Bearing Cone
“nice finish and function. Should perform well.”
Tapered Roller Bearing Cone
from $22.99
(1)
Tapered Roller Bearing Cone
“So far so good.”

FAQs for 1966 Dodge D300 Series Differentials

What are the best-selling Differentials for 1966 Dodge D300 Series?

Out of 233 Differentials that fit 1966 Dodge D300 Series, the following parts are the top sellers:

What’s the price range for 1966 Dodge D300 Series Differentials?

The prices of Differentials for the 1966 Dodge D300 Series range from $3.99 up to $1,566.99 for the most premium parts.

What is the average price of a Differential for a 1966 Dodge D300 Series?

The average price for Differentials for the 1966 Dodge D300 Series is $298.19. 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 D300 Series model years?

Yes, we carry Differentials for 6 model years of Dodge D300 Series between 1960 and 1967. The following model years are the most popular for Differential purchases: 1967, 1965, 1964, 1963, 1962, 1961, and 1960.

What are the cheapest Differentials for my 1966 Dodge D300 Series?

The cheapest 1966 Dodge D300 Series Differentials we carry are:

Does Advance Auto Parts sell Differentials for any other 1966 Dodge models?

Yes. We stock Differentials for 14 other popular 1966 Dodge models. Some of the most popular are 1966 Charger Differentials, 1966 Dart Differentials, 1966 Monaco Differentials, 1966 Coronet Differentials, and 1966 Polara Differentials.

What types of Differentials do you sell for my 1966 Dodge D300 Series?

As of 3/1/26, these are some of the most in-demand types of Differentials for a 1966 Dodge D300 Series:

Can I get help with 1966 Dodge D300 Series 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 D300 Series Differentials?

Advance Auto Parts keeps returns simple. For new Dodge D300 Series Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

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