1966 Pontiac Grand Prix Differentials

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Keep Your 1966 Pontiac Grand Prix in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1966 Pontiac Grand Prix looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Oil, Rear Housing Cover Gaskets, and Differential Pinion Bearing Kits. 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 Driveworks. For example, Driveworks Differentials start at just $10.79 with an average 4.2 star rating. With over 80 reviews and a solid 3.5 star average, you can shop with confidence knowing other Pontiac Grand Prix owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1966 Pontiac Grand Prix Differential at Advance Auto Parts is around $163.84, with a range that starts at $2.99 and goes up to $929.99. With 47 options in stock from 10 trusted brands, finding the right fit is easy. Popular picks like Motive Gear Ring Gear Bolt, 14066913, Yukon Gear 3 Qt – Penzoil 80W90 Conventional Gear Oil, 15002, and Motive Gear Differential Pinion Nut, 1260823 start at just $2.99 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 Pontiac Grand Prix in peak condition, inside and out.

Essential 1966 Pontiac Grand Prix Differentials

Yukon Gear – Yukon Gear Pinion Nut washer, 33167 (Part No.33167)

Yukon Gear Pinion Nut washer, 33167

from

$14.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.
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Motive Gear – Motive Gear Differential Bearing Kit – Koyo, R8.5PR (Part No.R8.5PR)

Motive Gear Differential Bearing Kit - Koyo, R8.5PR

from

$94.99
Motive Gear Differential Bearing Kits Include Front & Rear Pinion Bearing, Pinion Seal, Carrier Bearings, Pilot Bearing Where Applicable, Gear Marking Compound, Crush Sleeve, Pinion Nut, Brush, Thread Locking Compound And Cover Gasket Or Rtv
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Dorman – Dorman Differential Ring and Pinion Set, 697-301 (Part No.697-301)

Dorman Differential Ring and Pinion Set, 697-301

from

$318.99
This differential ring and pinion directly replaces the original equipment on specific vehicle years, makes and models.
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Yukon Gear – "Yukon Gear Forged Yoke for GM 8.5"" with A 1350 U/Joint Size., 41093" (Part No.41093)

"Yukon Gear Forged Yoke for GM 8.5"" with A 1350 U/Joint Size., 41093"

from

$359.99
Yukon Gear and Axle manufactures a complete line of general replacement and performance series of pinion yokes for many street, racing, and heavy-duty off-road applications.
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Yukon Gear – "Yukon Gear Duragrip Posi For 8.2"" Buicks, Olds & Pontiac With 28 Spline Axles, 26024" (Part No.26024)

"Yukon Gear Duragrip Posi For 8.2"" Buicks, Olds & Pontiac With 28 Spline Axles, 26024"

from

$929.99
“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. This case is drilled for 3/8″” bolts. Some factory gears use 7/16″” bolts. If your factory gear uses 7/16″” bolts you will need to drill out the ring gear bolt holes.”
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Yukon Gear – Yukon Gear Ring Gear Bolt, 33046 (Part No.33046)

Yukon Gear Ring Gear Bolt, 33046

from

$6.99
“Ring gear bolt for GM 12 bolt car & truck, 8.2″”, 8.2″” for Buick/Olds/Pontiac, 63-79 Corvette & 55-62 GM Car & Truck. 3/8″” x 24.”
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Dorman – Dorman Axle Shaft, 630-142 (Part No.630-142)

Dorman Axle Shaft, 630-142

from

$325.99
This axle shaft is designed to match the performance of the original equipment shaft on specified vehicle makes, models and years. When a factory axle shaft fails or is damaged by rust or collision, this replacement is engineered to help restore and ensure the proper transfer of torque and rotational power from the differential or transmission to the wheel.
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Yukon Gear – "Yukon Gear Pinion Install Kit for GM 8.5"" Differential, 13069" (Part No.13069)

"Yukon Gear Pinion Install Kit for GM 8.5"" Differential, 13069"

from

$173.99
Yukon Pinion Installation Kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings and races can be reused. This kit features Timken bearings and races along with high-quality seals and small parts. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your gear set.
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Yukon Gear – "Yukon Gear Redi Sleeve for GM 8.5"", 9.5"" & 8.2"" BOP Yokes, 30229" (Part No.30229)

"Yukon Gear Redi Sleeve for GM 8.5"", 9.5"" & 8.2"" BOP Yokes, 30229"

from

$57.99
Yukon Mighty Seals use the latest design and manufacturing technologies to produce a precision fit that seals tight and lasts for years to come.
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Yukon Gear – Yukon Gear Pinion Nut, 33152 (Part No.33152)

Yukon Gear Pinion Nut, 33152

from

$9.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.
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Yukon Gear – Yukon Gear Bearing Race Driver for Popular Ford, Gm, Chrysler, and Dana Differentials, 56017 (Part No.56017)

Yukon Gear Bearing Race Driver for Popular Ford, Gm, Chrysler, and Dana Differentials, 56017

from

$215.99
Yukon Gear & Axle offers a full line of top quality differential tools to save time and money.
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Yukon Gear – Yukon Gear 63-64 Oldsmobile Drop Out Crush Sleeve, 33112 (Part No.33112)

Yukon Gear 63-64 Oldsmobile Drop Out Crush Sleeve, 33112

from

$30.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.
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USA Standard Gear – USA Standard Gear Differential Spider Gear Kits, 39024 (Part No.39024)

USA Standard Gear Differential Spider Gear Kits, 39024

from

$156.99
“Standard Open side gear thrust washer for 7.5″” Ford.”
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Powertrax – Powertrax Differential Lock Assembly, 1930-LR (Part No.1930-LR)

Powertrax Differential Lock Assembly, 1930-LR

from

$445.99
For vehicles that are driven daily, the Power Trax 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 Power Trax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Power Trax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Power Trax 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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Valvoline – Valvoline Extended Protection Full Synthetic Automatic Transmission Fluid ATF 1 QT, 904976 (Part No.904976)

Valvoline Extended Protection Full Synthetic Automatic Transmission Fluid ATF 1 QT, 904976

from

$15.99
Modern transmissions are better than ever, with more gears to help improve fuel efficiency and acceleration. Greater performance calls for greater protection. Valvoline Extended Protection Full Synthetic ATF features our exclusive Dual Defense Additive Technology for two layers of protection against metal-on-metal contact and thermal breakdown, all while minimizing wear on clutch components. In fact, Valvoline Extended Protection Full Synthetic ATF is 45% stronger against breakdown compared to major brand DEX/MERC oxidative PDSC performance. Proven to maximize transmission life, our patented formula keeps your modern vehicle shifting smoothly, mile after mile, with the ultimate protection you can only expect from Valvoline, the #1 ATF brand.
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Richmond Gear – Richmond Gear Differential Gear Install Kit, 83-1019-B (Part No.83-1019-B)

Richmond Gear Differential Gear Install Kit, 83-1019-B

from

$39.49
Richmond Gear is the leading manufacturer of professional quality, high-performance drivetrain products. Our complete line of products ranges from high performance ring-and-pinion sets for serious street and racing applications to torque-hungry manual transmissions and components. Richmond Gear products have been winners both at the Daytona 500 and U.S. Nationals for decades. WINNERS RUN RICHMOND.
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Pro-King – Pro-King Differential Pinion Shim Kit, 742G202 (Part No.742G202)

Pro-King Differential Pinion Shim Kit, 742G202

from

$6.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.
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USA Standard Gear – USA Standard Gear Differential Rebuild Kit, 37049 (Part No.37049)

USA Standard Gear Differential Rebuild Kit, 37049

from

$209.99
USA Standard Master Overhaul kits let you finish your install with confidence. This kit uses Koyo bearings and races. Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable), threading locking compound, marking compound with brush and gasket.
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Yukon Gear – "Yukon Gear 8.5"" & 8.2"" GM carrier installation kit, 57008" (Part No.57008)

"Yukon Gear 8.5"" & 8.2"" GM carrier installation kit, 57008"

from

$109.99
Yukon Carrier Installation Kits are a convenient and low-cost solution for carrier changes in cases where one is upgrading to a positraction limited slip differential, a mechanical locker, or an air operated locker. These kits contain carrier bearings and races and a carrier shim kit.
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Driveworks – Driveworks Tapered Roller Bearing, S-JL-69349 (Part No.S-JL-69349)

Driveworks Tapered Roller Bearing, S-JL-69349

from

$8.99
Driveworks Tapered Roller Bearing, S-JL-69349.
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Victor Reinz – Victor Reinz Axle Housing Cover Gasket, 71-14827-00 (Part No.71-14827-00)

Victor Reinz Axle Housing Cover Gasket, 71-14827-00

from

$8.29
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.
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Victor Reinz – Victor Reinz Axle Housing Cover Gasket, 71-14823-00 (Part No.71-14823-00)

Victor Reinz Axle Housing Cover Gasket, 71-14823-00

from

$8.69
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.
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ATP – ATP Differential Cover Kit With Internal Magnet, 111102 (Part No.111102)

ATP Differential Cover Kit With Internal Magnet, 111102

from

$29.99
Differential covers can become damaged from road debris, corrosion, or bolt/drain plug over tightening. Their job is to act as a lid keeping lubricants in place for the ring and pinion gears, bearings, and bushings. Without lubricants, the differential quickly become damaged. ATP Differential Cover Kits include a replacement gasket and are designed to fit and function just like the original part ensuring long life and durability.
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Yukon Gear – "Yukon Gear Chrome Cover for 7.5"" GM, 32014" (Part No.32014)

"Yukon Gear Chrome Cover for 7.5"" GM, 32014"

from

$67.99
These Yukon replacement diff covers take your rig a step beyond the boring factory look. They are the stock OE design finished in chrome.
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Driveworks – Driveworks Oil Seal, S-8610 (Part No.S-8610)

Driveworks Oil Seal, S-8610

from

$11.99
Value-priced seal meets all cataloged application requirements.
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Driveworks – Driveworks Oil Seal, S-8460N (Part No.S-8460N)

Driveworks Oil Seal, S-8460N

from

$8.99
Value-priced seal meets all cataloged application requirements.
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National – National Bearing Race, LM501314 (Part No.LM501314)

National Bearing Race, LM501314

from

$11.99
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.
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National – National Tapered Roller Bearing Cone, HM804846 (Part No.HM804846)

National Tapered Roller Bearing Cone, HM804846

from

$46.49
Manufactured with premium-grade steel, National taper bearing cones feature crowned raceways and rollers to ensure even load distribution.
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Most Popular Differential Oil for 1966 Pontiac Grand Prixes

Enhance your 1966 Pontiac Grand Prix with one of the 2 Differential Oil we have in stock, starting at just $44.99.

Yukon Gear – Yukon Gear 3 Qt – Penzoil 80W90 Conventional Gear Oil, 15002 (Part No.15002)

Yukon Gear 3 Qt - Penzoil 80W90 Conventional Gear Oil, 15002

from

$44.99
Union 76 gear oil is a conventional non-synthetic 80W90 formulation designed for all types of differentials.
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Yukon Gear – "Yukon Gear Redline Synthetic ""Shock Proof"" Oil – 4 Quarts, 15004" (Part No.15004)

"Yukon Gear Redline Synthetic ""Shock Proof"" Oil - 4 Quarts, 15004"

from

$137.99
Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection.
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Best-Selling 1966 Pontiac Grand Prix Rear Housing Cover Gasket

Upgrade your Grand Prix with our best-selling Rear Housing Cover Gasket.

Victor Reinz – Victor Reinz Axle Housing Cover Gasket, 71-14823-00 (Part No.71-14823-00)

Victor Reinz Axle Housing Cover Gasket, 71-14823-00

from

$8.69
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.
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Top-Quality Differential Pinion Bearing Kits for 1966 Pontiac Grand Prixes

Choose a high-quality OEM or aftermarket Differential Pinion Bearing Kit for Pontiac Grand Prixes and enjoy top-notch performance from $11.99.

Driveworks – Driveworks Taper Bearing Set, S-A-6 (Part No.S-A-6)

Driveworks Taper Bearing Set, S-A-6

from

$11.99
Value-priced bearing meets all cataloged application requirements.
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Yukon Gear – "Yukon Gear Pinion Install Kit for GM 8.2"" Diff for Buick, Pontiac, and Oldsmobile, 13068" (Part No.13068)

"Yukon Gear Pinion Install Kit for GM 8.2"" Diff for Buick, Pontiac, and Oldsmobile, 13068"

from

$282.99
Yukon Pinion Installation Kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings and races can be reused. This kit features Timken bearings and races along with high-quality seals and small parts. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your gear set.
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Top Picks for 1966 Pontiac Grand Prix Differential Pinion Seals

Invest in one of our 3 durable Differential Pinion Seals for your 1966 Pontiac, knowing you’re getting trusted brands and expert craftsmanship.

Driveworks – Driveworks Oil Seal, S-2043 (Part No.S-2043)

Driveworks Oil Seal, S-2043

from

$10.79
Value-priced seal meets all cataloged application requirements.
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Yukon Gear – "Yukon Gear Pinion Seal for GM 8.5"", 8.2"", Buick, Oldsmobile, and Pontiac, 30017" (Part No.30017)

"Yukon Gear Pinion Seal for GM 8.5"", 8.2"", Buick, Oldsmobile, and Pontiac, 30017"

from

$9.99
Yukon Mighty Seals use the latest design and manufacturing technologies to produce a precision fit that seals tight and lasts for years to come.
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Schaeffler – Schaeffler Shaft Seal, SS2983 (Part No.SS2983)

Schaeffler Shaft Seal, SS2983

from

$9.99
Our wheel seals are engineered using only the highest-quality materials to meet vehicle manufacturer specificatons. We work with suppliers to design seals that meet FAG’s quality standards. Seals are designed to protect wheel end components from contamination – such as dirt, dust, and moisture – and prevent the loss of grease over the life of the bearing. The specifications for wheel seals are very demanding, and the type required depends on the specific application, position and vehicle class.
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Our Differential Covers for 1966 Pontiac Grand Prixes

Make a smart move for your 1966 Pontiac Grand Prix with our Differential Cover for $74.99.

Yukon Gear – "Yukon Gear Chrome Cover for 8.2"" Buick, Oldsmobile, and Pontiac GM, 32015" (Part No.32015)

"Yukon Gear Chrome Cover for 8.2"" Buick, Oldsmobile, and Pontiac GM, 32015"

from

$74.99
These Yukon replacement diff covers take your rig a step beyond the boring factory look. They are the stock OE design finished in chrome.
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Top-Rated Differential Brands For Your 1966 Pontiac Grand Prix

When it comes to finding the perfect Differential for your 1966 Pontiac Grand Prix, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 10 trusted brands. We carry the most popular Differential brands including Driveworks, and more, all known for their exceptional customer ratings (average brand rating of 4.2 stars) and competitive prices, as low as $10.79. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1966 Pontiac Grand Prix, providing peace of mind with parts that meet or exceed OEM standards.

Popular Driveworks 1966 Pontiac Grand Prix Differentials

If you’re looking for a top-quality Differential for your 1966 Pontiac Grand Prix, Advance Auto Parts has exactly what you need with our selection of Driveworks Differentials. We have 2 Driveworks Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $10.79 and an average cost of $11.39, you’ll find the perfect Differential for your needs and budget. Driveworks Differentials for the 1966 Pontiac Grand Prix come highly rated, with over 39 customer reviews and an impressive average rating of 4.2 stars. Choosing a Driveworks Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Driveworks Taper Bearing Set, S-A-6
from $11.99
(38)
Driveworks Taper Bearing Set, S-A-6
“HELPFUL ASSOCIATE”
Driveworks Oil Seal, S-2043
from $10.79
(1)
Driveworks Oil Seal, S-2043
“Didn’t fit my 1992 K1500 10 bolt 8.5″ ring gear rear end. Was told wrong part.”

FAQs for 1966 Pontiac Grand Prix Differentials

What are the best-selling Differentials for 1966 Pontiac Grand Prixes?

Out of 47 Differentials that fit 1966 Pontiac Grand Prixes, the following parts are the top sellers:

What’s the price range for 1966 Pontiac Grand Prix Differentials?

The prices of Differentials for the 1966 Pontiac Grand Prix range from $2.99 up to $929.99 for the most premium parts.

What is the average price of a Differential for a 1966 Pontiac Grand Prix?

The average price for Differentials for the 1966 Pontiac Grand Prix is $163.84. 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 Pontiac Grand Prix model years?

Yes, we carry Differentials for 45 model years of Pontiac Grand Prixes between 1962 and 2008. The following model years are the most popular for Differential purchases: 2008, 2007, 2006, 2005, 2004, 2003, 2002, 2001, and 2000.

What are the cheapest Differentials for my 1966 Pontiac Grand Prix?

The cheapest 1966 Pontiac Grand Prix Differentials we carry are:

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

Yes. We stock Differentials for 5 other popular 1966 Pontiac models. Some of the most popular are 1966 Bonneville Differentials, 1966 LeMans Differentials, 1966 GTO Differentials, 1966 Catalina Differentials, and 1966 Tempest Differentials.

What types of Differentials do you sell for my 1966 Pontiac Grand Prix?

As of 8/2/26, these are some of the most in-demand types of Differentials for a 1966 Pontiac Grand Prix:

Can I get help with 1966 Pontiac Grand Prix Differential orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Pontiac Differentials and more.

What is your return policy for Pontiac Grand Prix Differentials?

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