1985 Buick Somerset Regal Differentials

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Keep Your 1985 Buick Somerset Regal in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1985 Buick Somerset Regal looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Oil, Differential Carrier Bearing Set, and Differential Seals. 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 National and Driveworks. For example, National Differentials start at just $41.49 with an average 4.3 star rating. Driveworks offer similar pricing and quality, backed by strong customer feedback. With over 284 reviews and a solid 4.8 star average, you can shop with confidence knowing other Buick Somerset Regal owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1985 Buick Somerset Regal Differential at Advance Auto Parts is around $29.82, with a range that starts at $11.99 and goes up to $41.49. With 3 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like Valvoline Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid 1 GA, 904891 start at just $35.99 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 CV Axles and Joints and Drive Shafts and Axles. At Advance Auto Parts, we’re here to help you keep your 1985 Buick Somerset Regal in peak condition, inside and out.

Essential 1985 Buick Somerset Regal Differentials

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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National – National Shaft Repair Sleeve, 99139 (Part No.99139)

National Shaft Repair Sleeve, 99139

from

$41.49
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.
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Driveworks – Driveworks Taper Bearing Set, S-A-5 (Part No.S-A-5)

Driveworks Taper Bearing Set, S-A-5

from

$11.99
Value-priced bearing meets all cataloged application requirements.
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Most Popular Differential Oil for 1985 Buick Somerset Regals

Enhance your 1985 Buick Somerset Regal with this popular Differential Oil we have in stock, for $35.99.

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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Best-Selling 1985 Buick Somerset Regal Differential Carrier Bearing Set

Upgrade your Somerset Regal with our best-selling Differential Carrier Bearing Set with a 4.5 Starts rating across 70 reviews.

Driveworks – Driveworks Taper Bearing Set, S-A-5 (Part No.S-A-5)

Driveworks Taper Bearing Set, S-A-5

from

$11.99
Value-priced bearing meets all cataloged application requirements.
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Top-Quality Differential Seals for 1985 Buick Somerset Regals

Choose a high-quality OEM or aftermarket Differential Seal for Buick Somerset Regals and enjoy top-notch performance from $41.49.

National – National Shaft Repair Sleeve, 99139 (Part No.99139)

National Shaft Repair Sleeve, 99139

from

$41.49
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.
See More

Top-Rated Differential Brands For Your 1985 Buick Somerset Regal

When it comes to finding the perfect Differential for your 1985 Buick Somerset Regal, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 3 trusted brands. We carry the most popular Differential brands including National and Driveworks, and more, all known for their exceptional customer ratings (average brand rating of 4.3 stars) and competitive prices, as low as $11.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1985 Buick Somerset Regal, providing peace of mind with parts that meet or exceed OEM standards.

Popular National 1985 Buick Somerset Regal Differentials

If you’re looking for a top-quality Differential for your 1985 Buick Somerset Regal, Advance Auto Parts has exactly what you need with our selection of National Differentials. We have 1 National Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $41.49, you’ll find the perfect Differential for your needs and budget. National Differentials for the 1985 Buick Somerset Regal come highly rated, with over 1 customer reviews and an impressive average rating of 4.3 stars. Choosing a National Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
National Shaft Repair Sleeve, 99139
from $41.49
(1)
National Shaft Repair Sleeve, 99139
“used these speedy sleeves on the front axle of my Kubota with the wheel seals,saved me from spending 15 times more on the axle’s, Thank’s”

Top-Quality Driveworks 1985 Buick Somerset Regal Differentials

For those in search of a high-quality Differential for their 1985 Buick Somerset Regal, Advance Auto Parts offers a great selection of Driveworks Differentials. With 1 Driveworks Differentials in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Differentials start at just $11.99, giving you a range of options to suit your budget. Backed by over 70 customer ratings and an average rating of 4.2 stars, Driveworks Differentials provide both reliability and excellent performance. Choosing a Driveworks Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
Driveworks Taper Bearing Set, S-A-5
from $11.99
(70)
Driveworks Taper Bearing Set, S-A-5
“Great”

FAQs for 1985 Buick Somerset Regal Differentials

What are the best-selling Differentials for 1985 Buick Somerset Regals?

Out of 3 Differentials that fit 1985 Buick Somerset Regals, the following parts are the top sellers:

What’s the price range for 1985 Buick Somerset Regal Differentials?

The prices of Differentials for the 1985 Buick Somerset Regal range from $11.99 up to $41.49 for the most premium parts.

What is the average price of a Differential for a 1985 Buick Somerset Regal?

The average price for Differentials for the 1985 Buick Somerset Regal is $29.82. 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.

What are the cheapest Differentials for my 1985 Buick Somerset Regal?

The cheapest 1985 Buick Somerset Regal Differentials we carry are:

Does Advance Auto Parts sell Differentials for any other 1985 Buick models?

Yes. We stock Differentials for 6 other popular 1985 Buick models. Some of the most popular are 1985 Regal Differentials, 1985 Century Differentials, 1985 LeSabre Differentials, 1985 Skylark Differentials, and 1985 Riviera Differentials.

What are the top-rated Differentials that fit the 1985 Buick Somerset Regal?

Based on 284 reviews by customers, our 1985 Buick Somerset Regal Differentials have an average customer rating of 4.8 stars. These are the highest-rated categories of Differentials for the 1985 Buick Somerset Regal and their top-rated products:

What types of Differentials do you sell for my 1985 Buick Somerset Regal?

As of 8/2/26, these are some of the most in-demand types of Differentials for a 1985 Buick Somerset Regal:

Can I get help with 1985 Buick Somerset Regal 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 Somerset Regal Differentials?

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