1966 Pontiac GTO Differentials

Name: Positraction Internals For GM 12 Bolt Car And Truck With 33 Spline Axles
Brand: Yukon Gear
SKU: 16040
Price: 305.99 USD

Find your specific 1966 Pontiac GTO 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 Pontiac GTO Differentials

from

$305.99

Yukon positraction internals for GM 12P and 12T with 33 spline axles. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. This kit does not include clutches. All components come with a one year warranty against manufacturing defects.

Product Features:

Spider gear kit
Fits GM 12 bolt passenger car with 33 spline Dura Grip positraction
Includes two side gears, two pinion gears, cross pin shaft, roll pin and spider gear thrust washers.

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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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$441.99

The Powertrax Lock-Right ultra-strength alloy locker’s straight-line performance is equal to a solid spool, but automatically unlocks in turns. Best suited for extreme off-road to severe on-road use, Powertrax Lock Right lockers replace the spider gears in your open differential carrier using basic tools and without affecting your ring and pinion settings. The whole job can be done in your driveway in a couple of hours, pin included! Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!The Powertrax® Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Powertrax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.

Powertrax® lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.

Powertrax® offers three levels of GRIP locking differentials, ranging from the clutch-type GRIP LS with a forged steel case, the gear-driven GRIP PRO and finally the GRIP LOK for extreme traction.

Powertrax® = Extreme Traction Systems!

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$16.99

GM 12 bolt passenger car crush sleeve. Approx 2.340″ long.

Product Features:

Crush sleeve for GM 12 bolt passenger car
2.340″ tall

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$49.99

(SOME 8.2″ BOP) Buick, Oldsmobile & Pontiac pinion seal.Yukon Mighty seal.

Product Features:

Pinion seal
Fits 8.2″ Buick, Oldsmobile and Pontiac
2.656″ O.D.
1.645″ I.D.

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$289.99

Product Features:

Fits GM 8.2″ Buick, Oldsmobile and Pontiac
Adapt GM gears for BOP housing

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$182.99

RngPnnInstlKt

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$239.99

8.5″ GM standard Open case, 2.73 & up, 28 or 30 spline.

Product Features:

Standard open carrier case
Fits GM 8.5″ with 28 or 30 spline axles
2.73 and up ratio only
Does not include spider gears

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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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$13.99

8.2″ Buick, Oldsmobile, Pontiac cover gasket, 10 bolt holes.

Product Features:

Cover gasket
Fits 8.2″ in Buick, Oldsmobile and Pontiac

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$282.99

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 8.2″ Buick, Oldsmobile and Pontiac
Included are pinion bearings and races, pinion seal, crush sleeve, complete pinion shim kit, and marking compound with brush.

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$234.99

Yukon 1541H alloy rear axle for GM 8.2″ with length of 29-7/8″ and 28 splines axle shaft for use with Buick, Oldsmobile, and Pontiac. Yukon 1541H alloy axles offer a strength increase over stock while retaining a low cost. Yukon 1541H alloy rear axles come with a one year warranty against manufacturing defects. long splines can be chopped off.

Product Features:

Fits 8.2″ Buick, Oldsmobile and Pontiac
28 spline
29 7/8″ long

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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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$9.99

Pinion nut for GM 7.2″ IFS, 7.5″, 7.6″, 7.6″ IFS, 8.0″, 8.25″, 8.5″, 8.6″, 9.25″ IFS, 9.5″ & Oldsmobile Dropouts. 1 1/4″ socket, 7/8″ x 14 thread.

Product Features:

Pinion nut for GM 7.2″, 7.5″, 7.625″, 8.0″, 8.25″ IFS, 8.5″, 8.6″, 9.25″ IFS and 9.5″
7/8″ x 14 thread
1 1/4″ socket

from

$1020.00

8.5″ Oldsmobile 31spline 12 bolt (factory 3.08 or 3.23, or Richmond gear ring & pinions).

Product Features:

Positraction
Fits 8.5″ Oldsmobile
12 bolt design
31 spline
OEM 3.08 and 3.23 gear sets only

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$109.99

Yukon Carrier installation kits are great, low cost kit for carrier changes such as Positraction or locker upgrades. Carrier installation kit for GM 8.2″ & 8.5″ differential. This kit contains carrier bearings, races and shims.

Product Features:

Fits GM 7.5″, 7.625″ 8.2″ and 8.5″
Includes carrier bearings and races and “super” carrier shim kit

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$39.49

RngPnnInstlKt

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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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$59.99

Product Features:

Super carrier shim kit for Ford 7.5″, GM 7.5″, 7.625″, 7.6″ IFS, 7.6″ IRS, 7.75″, 8.2″, 8.2″ Buick, Oldsmobile and Pontiac and GM 8.5″ front and rear
Interlocking design makes installation much easier

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$74.99

Chrome cover for 8.6″, 8.5″ and 8.2″ GM rear.

Product Features:

Fits GM 8.2″, 8.5″ and 8.6″
Chrome

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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

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$23.79

CONE

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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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$359.99

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 GM 12 bolt passenger car
8.875″ ring gear diameter
30 spline pinion
12 ring gear bolts
3.73 ratio
Thin gear for 4.10 and up carrier

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$414.99

Yukon Performance 1-3/4″ deck steel spool for 8.5″ GM with 30 spline axles. Uses large bearings, 1.785 journals. Yukon performance spools are made from the highest quality materials to ensure high strength and long life in performance applications. Spools provide 100% power to both tires at all times and are a lower cost alternative to lockers. Spools are not recommended for street driven vehicles. Yukon Performance spools come with a one year warranty against manufacturing defects. This spool requires the use of a C-Clip eliminator kit to be used.

Product Features:

Fits GM 8.5″ with 30 spline axles
2.73 and up ratios only
Provides 100% traction to both wheels at all times
Not recommended for street driven vehicles

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$179.99

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 8.5″ Oldsmobile with 28 spline axles
Included are a pinion seal, crush sleeve, complete shim kit, marking compound and brush.

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$11.49

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

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$219.99

Bearing race driver. No return.

Product Features:

Bearing race driver
Fits M88010 race
All steel construction

Popular 1966 Pontiac GTO Differentials Categories

Differential Oil

Rear Differential Cover Gaskets

Differential Open Unit and Components

Differential Covers

Differential Bearings

Differential Axle Shafts

Differential Pinion Pilot Bearings

Differential Carriers

Differential Bearing Kits

Front Differential Pinion Bearings

Differential Rebuild Kits

Differential Carrier Shim Kits

Differential Pinion Seals

Differential Ring and Pinions

Differential End Yokes

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 Gear Install Kits

Differential Lock Washers

Maybe you’re in the middle of a full rebuild of that 1966 Pontiac GTO. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 132 different Differentials in our inventory ranging from $0.91 to $1,566.99. That means you can find the exact parts or products you need to keep that 1966 Pontiac GTO 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 Pontiac GTO. Valvoline, Yukon Gear, and Motive Gear 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 Pontiac GTO, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 46 reviews in this category, some of the top rated parts include Differential Cover Gasket with 4.4 stars and Differential Carrier Shim Kit with 2.7 stars.

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

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

from $7.79

(1)

Oil Seal

Differential Pinion Seals

from $6.29

(1)

Oil Seal

Differential Pinion Seals

Top 1966 Pontiac GTO Differentials from Valvoline

Valvoline products are another trusted brand when it comes to Differentials for your 1966 Pontiac GTO. Popular Valvoline parts include:

from $35.99

(17)

DEX/MERC Automatic Transmission Fluid, 1 Gallon

Differential Oil

from $14.49

(2)

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

Differential Oil

FAQs for 1966 Pontiac GTO Differentials

What are the most purchased Differentials for the 1966 Pontiac GTO?

Out of 132 Differentials for the 1966 Pontiac GTO, the most popular in our inventory are:

from $57.99

This product is not rated

3 Qt – 80W90 Conventional Gear Oil With Posi Additive

Differential Oil

from $23.99

(7)

Bearings

Front Differential Pinion Bearings

from $2.49

This product is not rated

Ring Gear Bolt

Differential Ring Gear Bolts

What are the top-rated 1966 Pontiac GTO Differentials?

Top-rated Differentials for your 1966 Pontiac GTO based on customer reviews/ratings are:

from $7.49

(7)

Differential Cover Gasket

“good”

from $8.49

(3)

Differential Carrier Shim Kit

“worked great”

from $43.99

(2)

Shaft Repair Sleeve

“As a mechanic I dont have time or money to waste on inferior products, which this is not. Great product,great price”

1966 Pontiac GTO Differentials

More 1966 Pontiac GTO Differentials

Essential 1966 Pontiac GTO Differentials

Yukon Gear – Positraction Internals For GM 12 Bolt Car And Truck With 33 Spline Axles (Part No.16040)

National – Shaft Repair Sleeve (Part No.99170)

Powertrax – Lock Right Locker (Part No.1940-LR)

Yukon Gear – GM 12 Bolt Passenger Car Crush Sleeve (Part No.33104)

Yukon Gear – Buick, Oldsmobile & Pontiac Pinion Seal (Part No.30194)

Yukon Gear – Conversion Kit (Part No.41184)

Richmond Gear – RngPnnInstlKt (Part No.83-1021-1)

Yukon Gear – Standard Open Carrier Case, GM 8.5", 2.73 & Up (Part No.20083)

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

Yukon Gear – 8.2" Buick, Oldsmobile, Pontiac Cover Gasket, 10 Bolt Holes (Part No.23019)

Yukon Gear – Pinion Install Kit For GM 8.2" Differential For Buick, Pontiac, And Oldsmobile (Part No.13068)

Yukon Gear – 1541H Alloy Rear Axle For GM 8.2" (Part No.21289)

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

Yukon Gear – Pinion Nut (Part No.33152)

USA Standard Gear – 8.5" Oldsmobile 31Spline 12 Bolt (Factory 3.08 Or 3.23, Or Richmond Gear Ring & Pinions) (Part No.59006)

Yukon Gear – 8.5" & 8.2" GM Carrier Installation Kit (Part No.57008)

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

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

Yukon Gear – Super Carrier Shim Kit For Ford 7.5", GM 7.5", 8.2" & 8.5" (Part No.55001)

Yukon Gear – Chrome Cover For 8.6", 8.5" And 8.2" GM Rear (Part No.32017)

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

FAG US – CONE (Part No.KLM603049)

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

USA Standard Gear – Ring & Pinion "Thin" Gear Set For GM 12 Bolt Car In A 3.73 Ratio (Part No.36168)

Yukon Gear – Steel Spool For GM 8.5" & 8.6" With 30 Spline Axles (Part No.32193)

Yukon Gear – Minor Install Kit For GM 8.5" Oldsmobile 442 And Cutlass Differential (Part No.12057)

National – Bearings (Part No.HM89410)

Yukon Gear – Bearing Race Driver (Part No.56023)

Popular 1966 Pontiac GTO Differentials Categories