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)

Positraction Internals For GM 12 Bolt Car And Truck With 33 Spline Axles

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$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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National – Shaft Repair Sleeve (Part No.99170)

Shaft Repair Sleeve

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

Lock Right Locker

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

    GM 12 Bolt Passenger Car Crush Sleeve

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

    Buick, Oldsmobile & Pontiac Pinion Seal

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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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    Yukon Gear – Conversion Kit (Part No.41184)

    Conversion Kit

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

    RngPnnInstlKt

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    $182.99
    RngPnnInstlKt

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

    Standard Open Carrier Case, GM 8.5", 2.73 & Up

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

    DEX/MERC Automatic Transmission Fluid, 1 Gallon

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

    8.2" Buick, Oldsmobile, Pontiac Cover Gasket, 10 Bolt Holes

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

    Pinion Install Kit For GM 8.2" Differential For Buick, Pontiac, And Oldsmobile

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

    1541H Alloy Rear Axle For GM 8.2"

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

    Super Carrier Shim Kit For Ford 8.8", GM 12 Bolt Car & Truck, 8.6 & Vette

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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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    Yukon Gear – Pinion Nut (Part No.33152)

    Pinion Nut

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

    8.5" Oldsmobile 31Spline 12 Bolt (Factory 3.08 Or 3.23, Or Richmond Gear Ring & Pinions)

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

    8.5" & 8.2" GM Carrier Installation Kit

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

    RngPnnInstlKt

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    $39.49
    RngPnnInstlKt

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

    Differential Cover Gasket

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

    Super Carrier Shim Kit For Ford 7.5", GM 7.5", 8.2" & 8.5"

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

    Chrome Cover For 8.6", 8.5" And 8.2" GM Rear

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

    3/8" Ring Gear Bolt Washer For GM 12 Bolt Car & Truck, 8.2 Bop & More

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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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    FAG US – CONE (Part No.KLM603049)

    CONE

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    $23.79
    CONE

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

    For Use With General Motors, 0.800"  Head L, 3/8" - 24 Thread Size, Chrome Moly

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

    Ring & Pinion "Thin" Gear Set For GM 12 Bolt Car In A 3.73 Ratio

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

    Steel Spool For GM 8.5" & 8.6" With 30 Spline Axles

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

    Minor Install Kit For GM 8.5" Oldsmobile 442 And Cutlass Differential

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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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    National – Bearings (Part No.HM89410)

    Bearings

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

    Bearing Race Driver

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    $219.99
    Bearing race driver. No return.

    Product Features:
    • Bearing race driver
    • Fits M88010 race
    • All steel construction
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    1966 Pontiac GTO Differentials

    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:
    Oil Seal
    from $7.79
    (1)
    Oil Seal
    Differential Pinion Seals
    Oil Seal
    from $6.29
    (1)
    Oil Seal
    Differential Pinion Seals

    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:
    3 Qt - 80W90 Conventional Gear Oil With Posi Additive
    from $57.99
    This product is not rated
    3 Qt – 80W90 Conventional Gear Oil With Posi Additive
    Differential Oil
    Bearings
    from $23.99
    (7)
    Bearings
    Front Differential Pinion Bearings
    Ring Gear Bolt
    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:
    Differential Cover Gasket
    from $7.49
    (7)
    Differential Cover Gasket
    “good”
    Differential Carrier Shim Kit
    from $8.49
    (3)
    Differential Carrier Shim Kit
    “worked great”
    Shaft Repair Sleeve
    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”