1978 Buick Opel Differentials

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Keep Your 1978 Buick Opel in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1978 Buick Opel looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Bearing Kits, Differential Oil, and Differential Ring Gear Bolts. 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.

Explore Related Parts

While you’re upgrading or replacing your Differential, don’t forget to check out other key components like Transfer Cases. At Advance Auto Parts, we’re here to help you keep your 1978 Buick Opel in peak condition, inside and out.

Essential 1978 Buick Opel Differentials

Richmond Gear – Richmond Gear Differential Bearing Kit, 83-1016-1 (Part No.83-1016-1)

Richmond Gear Differential Bearing Kit, 83-1016-1

from

$182.99
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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Motive Gear – Motive Gear Differential Master Bearing Kit – Koyo, R7.5GRBMK (Part No.R7.5GRBMK)

Motive Gear Differential Master Bearing Kit - Koyo, R7.5GRBMK

from

$111.99
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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Driveworks – Driveworks Ball Bearing, S-L-44649 (Part No.S-L-44649)

Driveworks Ball Bearing, S-L-44649

from

$5.99
Driveworks Ball Bearing, S-L-44649.
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Schaeffler – Schaeffler Cone, KL44649 (Part No.KL44649)

Schaeffler Cone, KL44649

from

$11.99
With advanced load-carrying capacity and compact design, tapered roller bearings are used in wheel bearings, transmissions, differentials, transfer cases and other miscellanous applications. FAG manufacturers over 100 million tapered roller bearings annually.
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Motive Gear – Motive Gear Differential Ring and Pinion, GM7.5-342 (Part No.GM7.5-342)

Motive Gear Differential Ring and Pinion, GM7.5-342

from

$224.99
Motive Gear Differential Ring and Pinion, GM7.5-342.
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Motive Gear – Motive Gear Performance Differential Ring and Pinion, G875456 (Part No.G875456)

Motive Gear Performance Differential Ring and Pinion, G875456

from

$242.99
Motive Gear Performance Differential Ring and Pinion, G875456.
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Motive Gear – Motive Gear Differential Ring and Pinion, GM7.5-456 (Part No.GM7.5-456)

Motive Gear Differential Ring and Pinion, GM7.5-456

from

$216.99
Motive Gear Differential Ring and Pinion, GM7.5-456.
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Motive Gear – Motive Gear Ring Gear Bolt, 14066913 (Part No.14066913)

Motive Gear Ring Gear Bolt, 14066913

from

$2.99
Motive Gear Ring Gear Bolt, 14066913.
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Motive Gear – Motive Gear Differential Pinion Shim Kit, 1104 (Part No.1104)

Motive Gear Differential Pinion Shim Kit, 1104

from

$12.99
Motive Gear Differential Pinion Shim Kit, 1104.
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Motive Gear – Motive Gear Differential Pinion Nut, 1260823 (Part No.1260823)

Motive Gear Differential Pinion Nut, 1260823

from

$10.99
Motive Gear offers some of the toughest drive train components on the market today. If you are looking for the largest line of performance ring and pinion gear options available with gear sets in a wide range of ratios for nearly every application, both on and off-road, check out Motive Gear. Motive Gear products can be found in the winner’s circle at racing events worldwide. The superior quality of Motive Gear components is the result of years of racing development, outstanding design and state-of-the-art manufacturing methods. Extensive testing is performed on all products by our in-house engineers.
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Valvoline – Valvoline Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid 1 GA, 904891 (Part No.904891)

Valvoline Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid 1 GA, 904891

from

$35.99
Choosing an automatic transmission fluid just got easier. Valvoline Full Synthetic MaxLife Multi-Vehicle ATF, the #1 ATF product, is suitable for use in 95% of ATF vehicles in operation with US registered light duty applications. And now, it€™s also recommended for most belt and chain-driven continuously variable transmissions (CVT). Featuring advanced additives to prevent the major causes of transmission breakdown, it€™s designed to help prevent leaks, reduce wear and tear, and maximize performance €“ all for much longer than conventional fluids. It has improved thermal stability for longer fluid life, better viscosity stability for consistent transmission operation, and frictional enhancements for smooth gear engagements. Whether your vehicle has a CVT or traditional automatic, Valvoline MaxLife Multi-Vehicle ATF is suitable for a broad range of transmissions including Ford, GM, Toyota, Honda, Nissan, Hyundai, Subaru, BMW, Mercedes, Volvo, VW and Audi vehicles. It€™s specifically recommended for use in the following applications: GM DEXRON-II, DEXRON-III, DEXRON-VI, and DEX-CVT; Ford MERCON LV; Toyota/Lexus Type T, T-II, T-IV, WS, CVTF FE, and CVTF TC. For the many miles ahead, trust your transmission with Valvoline, the #1 automatic transmission fluid brand.
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Richmond Gear – Richmond Gear Differential Pinion Shaft, CSPGM75 (Part No.CSPGM75)

Richmond Gear Differential Pinion Shaft, CSPGM75

from

$26.49
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.
See More

Driveworks – Driveworks Tapered Roller Bearing, S-19268 (Part No.S-19268)

Driveworks Tapered Roller Bearing, S-19268

from

$6.99
Driveworks Tapered Roller Bearing, S-19268.
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Most Popular Differential Bearing Kits for 1978 Buick Opels

Enhance your 1978 Buick Opel with one of the 4 Differential Bearing Kits we have in stock, starting at just $94.99.

Richmond Gear – Richmond Gear Differential Bearing Kit, 83-1016-1 (Part No.83-1016-1)

Richmond Gear Differential Bearing Kit, 83-1016-1

from

$182.99
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.
See More

Motive Gear – Motive Gear Differential Master Bearing Kit – Timken, R7.5GRBMKT (Part No.R7.5GRBMKT)

Motive Gear Differential Master Bearing Kit - Timken, R7.5GRBMKT

from

$119.99
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
See More

Motive Gear – Motive Gear Differential Master Bearing Kit – Koyo, R7.5GRBMK (Part No.R7.5GRBMK)

Motive Gear Differential Master Bearing Kit - Koyo, R7.5GRBMK

from

$111.99
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
See More

Motive Gear – Motive Gear Differential Bearing Kit – Koyo, R7.5GRB (Part No.R7.5GRB)

Motive Gear Differential Bearing Kit - Koyo, R7.5GRB

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
See More

Best-Selling 1978 Buick Opel Differential Oil

Upgrade your Opel with our best-selling Differential Oil.

Valvoline – Valvoline Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid 1 GA, 904891 (Part No.904891)

Valvoline Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid 1 GA, 904891

from

$35.99
Choosing an automatic transmission fluid just got easier. Valvoline Full Synthetic MaxLife Multi-Vehicle ATF, the #1 ATF product, is suitable for use in 95% of ATF vehicles in operation with US registered light duty applications. And now, it€™s also recommended for most belt and chain-driven continuously variable transmissions (CVT). Featuring advanced additives to prevent the major causes of transmission breakdown, it€™s designed to help prevent leaks, reduce wear and tear, and maximize performance €“ all for much longer than conventional fluids. It has improved thermal stability for longer fluid life, better viscosity stability for consistent transmission operation, and frictional enhancements for smooth gear engagements. Whether your vehicle has a CVT or traditional automatic, Valvoline MaxLife Multi-Vehicle ATF is suitable for a broad range of transmissions including Ford, GM, Toyota, Honda, Nissan, Hyundai, Subaru, BMW, Mercedes, Volvo, VW and Audi vehicles. It€™s specifically recommended for use in the following applications: GM DEXRON-II, DEXRON-III, DEXRON-VI, and DEX-CVT; Ford MERCON LV; Toyota/Lexus Type T, T-II, T-IV, WS, CVTF FE, and CVTF TC. For the many miles ahead, trust your transmission with Valvoline, the #1 automatic transmission fluid brand.
See More

Top-Quality Differential Ring Gear Bolts for 1978 Buick Opels

Choose a high-quality OEM or aftermarket Differential Ring Gear Bolt for Buick Opels and enjoy top-notch performance from $2.99.

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

Motive Gear Ring Gear Bolt, 14066913

from

$2.99
Motive Gear Ring Gear Bolt, 14066913.
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Our Top Pick for a 1978 Buick Opel Differential Bearing

Invest in a durable Differential Bearing for your 1978 Buick, knowing you’re getting trusted brands and expert craftsmanship.

Schaeffler – Schaeffler Cone, KL44649 (Part No.KL44649)

Schaeffler Cone, KL44649

from

$11.99
With advanced load-carrying capacity and compact design, tapered roller bearings are used in wheel bearings, transmissions, differentials, transfer cases and other miscellanous applications. FAG manufacturers over 100 million tapered roller bearings annually.
See More

Our Front Differential Pinion Bearings for 1978 Buick Opels

Make a smart move for your 1978 Buick Opel with our Front Differential Pinion Bearing for $5.99.

Driveworks – Driveworks Ball Bearing, S-L-44649 (Part No.S-L-44649)

Driveworks Ball Bearing, S-L-44649

from

$5.99
Driveworks Ball Bearing, S-L-44649.
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FAQs for 1978 Buick Opel Differentials

What are the best-selling Differentials for 1978 Buick Opels?

Out of 34 Differentials that fit 1978 Buick Opels, the following parts are the top sellers:

What’s the price range for 1978 Buick Opel Differentials?

The prices of Differentials for the 1978 Buick Opel range from $2.99 up to $379.99 for the most premium parts.

What is the average price of a Differential for a 1978 Buick Opel?

The average price for Differentials for the 1978 Buick Opel is $170.09. 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 Buick Opel model years?

Yes, we carry Differentials for 2 model years of Buick Opels between 1976 and 1979. The following model years are the most popular for Differential purchases: 1979, 1977, and 1976.

What are the cheapest Differentials for my 1978 Buick Opel?

The cheapest 1978 Buick Opel Differentials we carry are:

Does Advance Auto Parts sell Differentials for any other 1978 Buick models?

Yes. We stock Differentials for 7 other popular 1978 Buick models. Some of the most popular are 1978 Regal Differentials, 1978 Century Differentials, 1978 LeSabre Differentials, 1978 Skylark Differentials, and 1978 Riviera Differentials.

What types of Differentials do you sell for my 1978 Buick Opel?

As of 8/2/26, these are some of the most in-demand types of Differentials for a 1978 Buick Opel:

Can I get help with 1978 Buick Opel Differential orders?

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

What is your return policy for Buick Opel Differentials?

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