1966 Buick Special Differentials

Find your specific 1966 Buick Special original or aftermarket Differentials below. Order your parts online and have delivered to your home or pick up in-store at Advance Auto.

Essential 1966 Buick Special Differentials

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$5.49

Product Features:

CRUSH SLEEVE 12 BLT CAR

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$23.79

CONE

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$566.99

RngPnn

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$35.99

Valvoline DEX/MERC ATF is a high-quality transmission fluid formulated to meet the challenging demands many automatic transmissions. Its responsive low-temperature fluidity is beneficial in both electronic and hydraulic controlled transmissions and transaxles. Recommended for use in the following applications: MERCON®, DEXRON®-III, Ford M2C138-CJ and M2C166-H, Allison C-4 and TES-389, and Caterpillar TO-2.

Product Features:

Formulated with premium base stocks and advanced additive technology to meet the challenging demands of automatic transmissions.
Enhanced anti-shudder protection for smooth shifting and maximum power transfer
Developed with anti-wear technology to help improve transmission durability
Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures

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$199.99

RngPnnInstlKt

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$8.49

High-quality Differential Carrier Shim Kit

Product Features:

CARRIER SHIMS 12 BOLT GM CAR & TRUCK ALSO GM8.6″ 99-ON

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$7.49

High-quality Differential Component Shim

Product Features:

SHIM KIT FITS-8.25-F7.5-AMC20-GM0

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$38.99

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:

Designed to repair damaged, grooved or worn shafts
Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
Easy to install with removable flange and installation tool
Installation tool reduces sleeve distortion and allows for installation without removal from the shaft

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$16.99

Product Features:

Brand may vary by location

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$37.99

The tremendous shock loads generated at launch by most any drag racing vehicle equipped with todays sticky tire compounds or the acceleration and deceleration of oval track cars put considerable strain on the ring gear. For this reason, the fastener experts at ARP have developed the Pro Series ring gear bolts. They are forged from premium grade 8740 chrome moly steel and are heat treated to a nominal rating of 200,000 PSI tensile strength. Specially hardened, precision ground washers are included where required. Available to fit most any ring gear setup ranging from popular 9 Inch Ford GM 10 and 12 bolt rear ends to the beefy strange differentials found in top fuel and funny car applications.

Product Features:

Forged From Premium Grade 8740 Chrome Moly Steel
Heat Treated
Nominally Rated At 200,000 Psi Tensile Strength
Specially Hardened, Precision Ground Washers
3/8″-24 RH Thread Size
0.8″ Underhead Length
200,000 PSI

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$480.99

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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$544.99

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!

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$21.79

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. Fits 1965-1970 Buick, Olds, Pontiac, 10 bolt 8.20 inch ring gear.

Product Features:

.047″ thick cellulose/nitrile composite gasket material
Precision die cut
Reusable

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$9.29

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

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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$551.99

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!

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$7.49

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

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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$98.99

Product Features:

MINI SPOOL GM 10 BOLT 8.2″ 28 SPLINE

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$64.49

Product Features:

MINI INSTALL KIT GM 12BLT 8.875 CAR

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$39.49

RngPnnInstlKt

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$1566.99

21 Piece bearing race driver set. (Box wt: 140lbs) No return.

Product Features:

Bearing race driver set
21 pieces
All steel construction

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$6.29

Value-priced seal meets all cataloged application requirements.

Product Features:

Brand may vary by location

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$13.99

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:

Low swell in hydrocarbon fluids
Design type: spring loaded; multi-lip
Provides good low temperature capability
Temperature range: -40°F to 225°F; -40°C to 107°C
Delivers quality and reliable performance for every type of repair

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$19.79

SHAFT SEAL

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$12.99

Low swell in hydrocarbon fluids
Design type: spring loaded; multi-lip
Provides good low temperature capability
Temperature range: -40°F to 225°F; -40°C to 107°C
Delivers quality and reliable performance for every type of repair

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$9.49

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

Product Features:

Premium bearing design matches OEM specifications
Precision manufactured using premium-grade steel for outstanding durability and performance
Crowned raceways and rollers to ensure even load distribution for maximum life
Industry leading coverage
Professional technicians know they can depend on National

Popular 1966 Buick Special Differentials Categories

Differential Oil

Rear Differential Cover Gaskets

Differential Open Unit and Components

Differential Bearings

Differential Pinion Pilot Bearings

Differential Bearing Kits

Front Differential Pinion Bearings

Differential Carrier Shim Kits

Differential Pinion Seals

Differential Ring and Pinions

Rear Differential Pinion Bearings

Differential Spools

Rear Housing Cover Gaskets

Complete Differentials

Differential Ring Gear Bolts

Bearing Race Drivers

Differential Crush Sleeves

Differential Pinion Shims

Differential Gear Install Kits

Maybe you’re in the middle of a full rebuild of that 1966 Buick Special. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 51 different Differentials in our inventory ranging from $4.99 to $1,566.99. That means you can find the exact parts or products you need to keep that 1966 Buick Special running smoothly.

Differentials are only as good as their brand. We stock 11 different brands to make sure you have plenty of trusted parts to choose from for your 1966 Buick Special. Valvoline, FELPRO, and National are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Differentials for your 1966 Buick Special, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 1,416 reviews in this category, some of the top rated parts include Differential Carrier Shim Kit with 2.7 stars and Multi Purpose Seal with 5.0 stars.

So if you’re in the market for aftermarket Differentials to keep your 1966 Buick Special rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Differentials Brands To Make Your 1966 Buick Special Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1966 Buick Special demands trusted brand parts and products to keep it running. Many trusted brands of Differentials make up Advance Auto Parts’ inventory, and all are ready to help make your Special the best it can be. Be sure to browse some of our top Differentials brands and parts.

Popular Driveworks Differentials

We carry Driveworks parts in our stock across Differential Pinion Seals categories, plus more. For a 1966 Buick Special, our most popular Driveworks Differentials include:

from $6.29

(1)

Oil Seal

Differential Pinion Seals

Top 1966 Buick Special Differentials from Felpro

Felpro products are another trusted brand when it comes to Differentials for your 1966 Buick Special. Popular Felpro parts include:

from $9.99

(195)

Differential Cover Gasket

Rear Differential Cover Gaskets

from $7.49

(7)

Differential Cover Gasket

Rear Housing Cover Gaskets

FAQs for 1966 Buick Special Differentials

What are the most purchased Differentials for the 1966 Buick Special?

Out of 51 Differentials for the 1966 Buick Special, the most popular in our inventory are:

from $14.49

(2)

DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart

Differential Oil

from $35.99

(17)

DEX/MERC Automatic Transmission Fluid, 1 Gallon

Differential Oil

from $23.99

(7)

Bearings

Front Differential Pinion Bearings

What are the top-rated 1966 Buick Special Differentials?

Top-rated Differentials for your 1966 Buick Special based on customer reviews/ratings are:

from $8.49

(3)

Differential Carrier Shim Kit

“worked great”

from $13.99

(2)

Multi Purpose Seal

“Front seal. Old one was leaking”

from $7.49

(1)

Differential Pinion Shim Kit

“good product”

1966 Buick Special Differentials

More 1966 Buick Special Differentials

Essential 1966 Buick Special Differentials

Motive Gear – Differential Crush Sleeve (Part No.3954480)

FAG US – CONE (Part No.KLM603049)

Richmond Gear – RngPnn (Part No.79-0074-1)

Valvoline – DEX/MERC Automatic Transmission Fluid, 1 Gallon (Part No.773636)

Richmond Gear – RngPnnInstlKt (Part No.83-1019-1)

Motive Gear – Differential Carrier Shim Kit (Part No.1101)

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

National – Shaft Repair Sleeve (Part No.99170)

Driveworks – Tapered Roller Bearing (Part No.S-M-802048)

ARP Auto Racing – For Use With General Motors, 0.800" Head L, 3/8" – 24 Thread Size, Chrome Moly (Part No.230-3001)

Powertrax – Grip LS Traction System (Part No.LS231230)

Powertrax – No-Slip Traction System (Part No.9207822801)

Mr. Gasket – Differential Gasket (Part No.84)

Felpro – Differential Cover Gasket (Part No.RDS 55009)

Powertrax – No-Slip Traction System (Part No.9207883005)

Felpro – Differential Cover Gasket (Part No.RDS 55029)

Motive Gear – Differential Mini Spool (Part No.MS10C-28)

Motive Gear – Differential Gear Install Kit (Part No.GM12IKC)

Richmond Gear – RngPnnInstlKt (Part No.83-1019-B)

Yukon Gear – Bearing Race Driver Set, 21 Piece (Part No.56030)

Driveworks – Oil Seal (Part No.S-8460N)

National – Multi Purpose Seal (Part No.8460N)

FAG US – SHAFT SEAL (Part No.SS2776)

National – Multi Purpose Seal (Part No.8611N)

National – Bearings (Part No.M86610)

Popular 1966 Buick Special Differentials Categories