1966 Buick Wildcat Differentials

Find your specific 1966 Buick Wildcat 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 Wildcat Differentials

from

$2.49

Product Features:

RING GEAR BOLT 8.5″ 7.5″ 7/16 X 20 LEFT HAND

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$59.99

Product Features:

Super carrier shim kit for Ford 8.8″, GM 12 bolt passenger car and truck, GM 8.0″, 8.6″, 8.6″ IRS and 1963-1979 Corvette
Interlocking design makes installation much easier

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$207.99

Yukon standard open spider gear kit for GM 12P and 12T with 30 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
Fits GM 12 bolt passenger car and truck open differential with 30 spline axles
Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.

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$483.99

Product Features:

Clutch kit
Fits Ford 8.8″, 1963-1979 Corvette, GM 12 bolt passenger car and truck, 8.2″, 8.5″ and 8.6″ Dura Grip positraction
18 piece kit
Steel clutches

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$232.99

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, 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:

Fits GM 12 bolt passenger car
Included are pinion bearings and races, pinion seal, crush sleeve, complete pinion shim kit, and marking compound with brush.

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$28.99

Positraction cross pin bolt for GM 12P and 12T.

Product Features:

Cross pin bolt for GM 12 bolt passenger car and truck
For OEM positraction applications only

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$23.99

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

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$386.99

GM 12P DURA GRIP case, bare, 3.08-3.90, 30spline & 33spline.

Product Features:

Dura Grip positraction carrier case
Does not include spider gears
Fits GM 12 bolt passenger car
3.08 – 3.90 ratios only

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$23.79

CONE

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$8.99

Positraction clutch guide.

Product Features:

Clutch guide for Chrysler 9.25″, Dana Spicer 44, Dana Spicer 50, Ford 8.8″, GM 12 bolt passenger car, GM 8.2″, 8.5″ and 8.6″, 1963-1979 Corvette and Nissan Titan
Compatible with Dura Grip positractions only

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$11.99

Pinion nut for GM 12 bolt car & truck, 55-62 car & truck, 8.2″, 8.2″ Buick/Olds/Pontiac & 63-79 Corvette. 1 1/8″ socket, 7/8″ x 16 thread.

Product Features:

Pinion nut for GM 12 bolt car and truck, 8.2″, 8.2″ Buick, Oldsmobile and Pontiac and 1963-1979 Corvette
7/8″ x 16 thread
1 1/8″ socket

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$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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$9.49

Product Features:

KIT SHIM PINION

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$839.99

The Yukon Dura Grip provides aggressive yet smooth traction to give you the confidence & performance you need. Get longer life and better traction with the heavy duty Yukon Dura Grip Positraction. The Yukon Dura Grip uses a nodular case and forged 4320 internals for added strength along with composite clutches for high performance and long life. All units are Rebuildable and many offer upgrades to increase aggressiveness for racing applications. Each unit carries a one year warranty against defects.

Product Features:

Fits GM 12 bolt passenger car with 30 spline axles
4.10 and up ratio only
4-spring, clutch style positraction
Internal gears are manufactured using forged 4320 steel and cut to provide stronger teeth
Fully rebuildable
Assembled in the USA
30 spline

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$14.99

Positraction pinion gear thrust washer with step-lip inside for GM 12P and 12T. fits new Eatons.

Product Features:

Pinion gear thust washer for GM 12 bolt passenger car and truck
Fits positraction designs only
Has inside lip

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$98.99

Product Features:

MINI SPOOL GM 10 BOLT 8.2″ 28 SPLINE

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$51.99

Notched cross pin shaft for 12P and 12T GM. This cross pin shaft is not compatible with Powertrax Lock Rights or Spartan Lockers.

Product Features:

Cross pin shaft
Fits GM 12 bolt passenger car and truck
Notched
Not compatible with Spartan Lockers or Lock Rights

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$5.99

Replacement Crush Sleeve for GM 7.6″ IRS, 8.5″, 8.6″, 8.75″, 8.875″ & Nissan Titan rear. Approx 0.620″ long.

Product Features:

Crush sleeve for Jeep JK rear, GM 7.6″ IRS, 8.5″ and 8.6″ and Nissan Titan rear
0.620″ tall

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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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$248.99

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 GM 12 bolt passenger car
Included are carrier bearings and races, pinion bearings and races, pinion seal, crush sleeve , marking compound and brush.

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$13.99

12T, 12P, & CI Vette pinion seal.Yukon Mighty seal.

Product Features:

Pinion seal
Fits GM 12 bolt passenger car and truck and 1963-1979 Corvette

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$9.99

5/16″-18 cover bolt, Dana Spicer 25, 27, 30 and 44, AMC Model 20 and Model 35, Chrysler 9.25 rear, GM 7.5″, 7.625″, 8.2″, 8.5″, 12 bolt passenger car and truck.

Product Features:

Cover bolt for Dana Spicer 25, 27, 30 and 44, AMC Model 20 and Model 35, GM 7.5″, 7.625″, 8.2″, 8.5″ and 12 bolt passenger car and truck.
1/2″ head

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$62.99

Chrome cover for GM 12P.

Product Features:

Fits GM 12 bolt passenger car
Chrome

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$221.99

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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$121.99

Yukon Carrier installation kits are great, low cost kit for carrier changes such as Positraction or locker upgrades. Carrier installation kit for GM 8.6″, 12 bolt car and 12 bolt truck differential. This kit contains carrier bearings, races and shims.

Product Features:

Fits GM 12 bolt passenger car and truck and 8.6″
Includes carrier bearings and races and “super” carrier shim kit

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$23.99

Pinion nut washer for GM 12 bolt car & truck, 55-62 GM car & truck, GM 8.2″ & 63-79 Corvette.

Product Features:

Pinion nut washer for GM 12 bolt car and truck, 1955-1964 GM car and truck, GM 8.2″ and 1963-1979 Corvette.

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$7.99

Standard Open side gear thrust washer for 12P and 12T GM.

Product Features:

Side gear thust washer for GM 12 bolt passenger car and truck
Fits standard open differentials only

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$4.99

3/8″ ring gear bolt washer for GM 12 bolt car & truck, 8.2 BOP & more.

Product Features:

Ring gear bolt washer for GM 12 bolt car and truck, 1955-1964 passenger car, 1963-1979 Corvette and 8.2″ Buick, Oldsmobile and Pontiac

Popular 1966 Buick Wildcat Differentials Categories

Differential Oil

Rear Differential Cover Gaskets

Differential Open Unit and Components

Differential Covers

Differential Pinion Shaft Lock Bolts

Differential Bearings

Differential Pinion Pilot Bearings

Differential Cover Bolts

Differential Carriers

Differential Bearing Kits

Front Differential Pinion Bearings

Differential Rebuild Kits

Differential Carrier Shim Kits

Differential Pinion Seals

Differential Clutch Packs

Differential Ring and Pinions

Differential End Yokes

Rear Differential Pinion Bearings

Differential Spools

Differential Carrier Bearings

Rear Housing Cover Gaskets

Differential Pinion Bearing Kits

Complete Differentials

Differential Ring Gear Bolts

Bearing Race Drivers

Differential Carrier Bearing Shims

Differential Crush Sleeves

Differential Side Bearing Spacers

Differential Pinion Shims

Differential Pinion Shaft Nuts

Differential Cross Pins

Differential Side Gear Thrust Washers

Differential Pinion Gear Thrust Washers

Differential Pinion Gear Washers

Differential Clutch Pack Clips

Differential Lock Washers

Maybe you’re in the middle of a full rebuild of that 1966 Buick Wildcat. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 105 different Differentials in our inventory ranging from $2.69 to $1,566.99. That means you can find the exact parts or products you need to keep that 1966 Buick Wildcat running smoothly.

Differentials are only as good as their brand. We stock 13 different brands to make sure you have plenty of trusted parts to choose from for your 1966 Buick Wildcat. 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 Wildcat, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 464 reviews in this category, some of the top rated parts include Bearings with 3.9 stars and Multi Purpose Seal with 5.0 stars.

So if you’re in the market for aftermarket Differentials to keep your 1966 Buick Wildcat 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 Wildcat Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1966 Buick Wildcat 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 Wildcat 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 Wildcat, our most popular Driveworks Differentials include:

from $6.29

(1)

Oil Seal

Differential Pinion Seals

Top 1966 Buick Wildcat Differentials from Felpro

Felpro products are another trusted brand when it comes to Differentials for your 1966 Buick Wildcat. 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 Wildcat Differentials

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

Out of 105 Differentials for the 1966 Buick Wildcat, 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 $57.99

This product is not rated

3 Qt – 80W90 Conventional Gear Oil With Posi Additive

Differential Oil

What are the top-rated 1966 Buick Wildcat Differentials?

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

from $23.99

(7)

Bearings

“Good price”

from $13.99

(2)

Multi Purpose Seal

“Front seal. Old one was leaking”

from $25.49

(1)

Bearings

“This Is The One That Fit My 1971 CHEVY TRUCK 12 BOLT PINION REAR BACK BEARING”

1966 Buick Wildcat Differentials

More 1966 Buick Wildcat Differentials

Essential 1966 Buick Wildcat Differentials

Motive Gear – Ring Gear Bolt (Part No.14066913)

Yukon Gear – Super Carrier Shim Kit For Ford 8.8", GM 12 Bolt Car & Truck, 8.6 & Vette (Part No.55002)

Yukon Gear – Standard Open Spider Gear Kit For GM 12 Bolt Car And Truck With 30 Spline Axles (Part No.16043)

Yukon Gear – 18 Plate Steel Clutches For GM 8.2", GM 8.5", 12T, 12P, Ford 8.8" & Cast Iron ‘Vette (Part No.16110)

Yukon Gear – Pinion Install Kit For GM 12 Bolt Car Differential (Part No.13056)

Yukon Gear – Positraction Cross Pin Bolt For GM 12 Bolt Car And Truck (Part No.33344)

National – Bearings (Part No.M802048)

Yukon Gear – Dura Grip Case, GM 12 Bolt Car, 3 Series (Part No.20104)

FAG US – CONE (Part No.KLM603049)

Yukon Gear – Positraction Clutch Guide (Part No.33352)

Yukon Gear – Pinion Nut (Part No.33150)

Yukon Gear – The Carrier Bearing Puller (Part No.56034)

Motive Gear – Differential Pinion Shim Kit (Part No.1102)

Yukon Gear – Dura Grip Positraction For GM 12 Bolt Car With 30 Spline Axles, 4.10 & Up (Part No.26013)

Yukon Gear – Positraction Pinion Gear Thrust Washer With Step-Lip Inside For GM 12P And 12T – Fits New Eatons (Part No.33382)

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

Yukon Gear – Notched Cross Pin Shaft For 12P And 12T GM (Part No.33429)

Yukon Gear – Crush Sleeve For GM 7.6" IRS, 8.5", 8.6", 8.75", 8.875" & Nissan Titan Rear – Approx 0.620" Long (Part No.33097)

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

Yukon Gear – Bearing Install Kit For GM 12 Bolt Car Differential (Part No.11054)

Yukon Gear – 12T, 12P, & CI Vette Pinion Seal (Part No.30187)

Yukon Gear – Dana 25, 27, 30, 44, Model 20 And Model 35, GM 7.5", 8.2", 8.5", 12P, 12T, C9.25 Rear Cover Bolt (Part No.33286)

Yukon Gear – Chrome Cover For GM 12 Bolt Car (Part No.32011)

Dorman – Differential Pinion Yoke Assembly (Part No.697-553)

Yukon Gear – 8.6" GM 12P 12T & F8.8 Carrier Installation Kit (Part No.57010)

Yukon Gear – Pinion Nut Washer (Part No.33166)

Yukon Gear – Standard Open Side Gear And Thrust Washer For GM 12 Bolt Car And Truck (Part No.33380)

Yukon Gear – 3/8" Ring Gear Bolt Washer For GM 12 Bolt Car & Truck, 8.2 Bop & More (Part No.33347)

Popular 1966 Buick Wildcat Differentials Categories