1985 Oldsmobile Firenza Differentials
Keep Your 1985 Oldsmobile Firenza in Top Shape with Quality Differentials
Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1985 Oldsmobile Firenza looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Carrier Bearing Set, Differential Bearings, and Front Differential Pinion Bearings. 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 $9.99 with an average 4.3 star rating. Driveworks offer similar pricing and quality, backed by strong customer feedback. With over 1,380 reviews and a solid 4.6 star average, you can shop with confidence knowing other Oldsmobile Firenza owners approve.
Competitive Prices and Extensive Inventory
The average price for a 1985 Oldsmobile Firenza Differential at Advance Auto Parts is around $17.88, with a range that starts at $7.99 and goes up to $41.49. With 12 options in stock from 4 trusted brands, finding the right fit is easy. Popular picks like Driveworks Tapered Roller Bearing, S-JL-69349, National Shaft Repair Sleeve, 99166, and National Bearing, JL69349 start at just $8.99 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 Transfer Cases. At Advance Auto Parts, we’re here to help you keep your 1985 Oldsmobile Firenza in peak condition, inside and out.
Find Your Specific 1985 Oldsmobile Firenza Differentials
Looking for the perfect Differential for your 1985 Oldsmobile Firenza? You’re in the right place. Below, you’ll find links to various types of Differentials that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Differentials, ensuring durability and a precise fit for your Oldsmobile Firenza. Whether you’re driving a 1985 model or another popular model year like
1982,
1983,
1984,
1986,
1987, and
1988, we’ve got you covered. Purchasing Differentials from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Differentials that fit your vehicle.
Essential 1985 Oldsmobile Firenza Differentials
Driveworks – Driveworks Tapered Roller Bearing, S-JL-69349 (Part No.S-JL-69349)
National – National Shaft Repair Sleeve, 99139 (Part No.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)
National – National Bearing Race, JL69310 (Part No.JL69310)
from
$12.99
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.
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National – National Multi-Purpose Bearing, 32206 (Part No.32206)
from
$30.99
Manufactured with premium materials, National taper bearing assemblies are designed and engineered to meet OE specifications.
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National – National Shaft Repair Sleeve, 99166 (Part No.99166)
from
$36.49
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
Schaeffler – Schaeffler Bearing – TRB (Tapered Roller Bearing), KT4 (Part No.KT4)
from
$13.99
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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National – National Bearing, JL69349 (Part No.JL69349)
from
$16.79
Manufactured with premium-grade steel, National® taper bearing cones feature crowned raceways and rollers to ensure even load distribution.
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Schaeffler – Schaeffler Cup, 15245 (Part No.15245)
from
$7.99
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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Schaeffler – Schaeffler Cone, KL44649 (Part No.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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National – National Taper Bearing Cup, 15245 (Part No.15245)
from
$9.99
Manufactured with premium-grade steel, National® taper bearing cups feature crowned raceways to ensure even load distribution.
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National – National Multi-Purpose Bearing, A-18 (Part No.A-18)
from
$18.29
Manufactured with premium-grade steel, National taper bearing sets feature crowned raceways and rollers to ensure even load distribution.
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Valvoline – Valvoline Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid 1 GA, 904891 (Part No.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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Popular 1985 Oldsmobile Firenza Differentials Categories
Most Popular Differential Carrier Bearing Set for 1985 Oldsmobile Firenzas
Enhance your 1985 Oldsmobile Firenza with this popular Differential Carrier Bearing Set we have in stock, for $11.99.
Driveworks – Driveworks Taper Bearing Set, S-A-5 (Part No.S-A-5)
Best-Selling 1985 Oldsmobile Firenza Differential Bearings
Upgrade your Firenza with one of our 6 best-selling Differential Bearings, earning an average 4.5 stars rating across 44 reviews.
National – National Multi-Purpose Bearing, A-18 (Part No.A-18)
from
$18.29
Manufactured with premium-grade steel, National taper bearing sets feature crowned raceways and rollers to ensure even load distribution.
See More
National – National Taper Bearing Cup, 15245 (Part No.15245)
from
$9.99
Manufactured with premium-grade steel, National® taper bearing cups feature crowned raceways to ensure even load distribution.
See More
National – National Bearing, JL69349 (Part No.JL69349)
from
$16.79
Manufactured with premium-grade steel, National® taper bearing cones feature crowned raceways and rollers to ensure even load distribution.
See More
Schaeffler – Schaeffler Bearing – TRB (Tapered Roller Bearing), KT4 (Part No.KT4)
from
$13.99
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
Schaeffler – Schaeffler Cone, KL44649 (Part No.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
Schaeffler – Schaeffler Cup, 15245 (Part No.15245)
from
$7.99
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
Top-Quality Front Differential Pinion Bearings for 1985 Oldsmobile Firenzas
Choose a high-quality OEM or aftermarket Front Differential Pinion Bearing for Oldsmobile Firenzas and enjoy top-notch performance from $12.99.
National – National Bearing Race, JL69310 (Part No.JL69310)
from
$12.99
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.
See More
Our Top Pick for a 1985 Oldsmobile Firenza Differential Oil
Invest in a
durable Differential Oil for your 1985 Oldsmobile, knowing you’re getting trusted brands and expert craftsmanship.
Valvoline – Valvoline Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid 1 GA, 904891 (Part No.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
Our Top-Rated Differential Seals for 1985 Oldsmobile Firenzas
Make a smart move for your 1985 Oldsmobile Firenza with our Differential Seal for $41.49.
National – National Shaft Repair Sleeve, 99139 (Part No.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 Oldsmobile Firenza
When it comes to finding the perfect Differential for your 1985 Oldsmobile Firenza, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 4 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 $9.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1985 Oldsmobile Firenza, providing peace of mind with parts that meet or exceed OEM standards.
Popular National 1985 Oldsmobile Firenza Differentials
If you’re looking for a top-quality Differential for your 1985 Oldsmobile Firenza, Advance Auto Parts has exactly what you need with our selection of National Differentials. We have 3 National Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $9.99 and an average cost of $23.26, you’ll find the perfect Differential for your needs and budget. National Differentials for the 1985 Oldsmobile Firenza come highly rated, with over 45 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.
from
$9.99
(8)
National Taper Bearing Cup, 15245
“It fits in Ford. I drove only few hundred miles can’t say much about it.”
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 Oldsmobile Firenza Differentials
For those in search of a high-quality Differential for their 1985 Oldsmobile Firenza, 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.
FAQs for 1985 Oldsmobile Firenza Differentials
What are the best-selling Differentials for 1985 Oldsmobile Firenzas?
Out of 12 Differentials that fit 1985 Oldsmobile Firenzas, the following parts are the top sellers:
- Driveworks Tapered Roller Bearing, S-JL-69349 (10733414) – $8.99
- National Shaft Repair Sleeve, 99166 (18445101) – $36.49
- National Bearing, JL69349 (3277127) – $16.79
What’s the price range for 1985 Oldsmobile Firenza Differentials?
The prices of Differentials for the 1985 Oldsmobile Firenza range from $7.99 up to $41.49 for the most premium parts.
What is the average price of a Differential for a 1985 Oldsmobile Firenza?
The average price for Differentials for the 1985 Oldsmobile Firenza is $17.88. 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 Oldsmobile Firenza model years?
What are the cheapest Differentials for my 1985 Oldsmobile Firenza?
The cheapest 1985 Oldsmobile Firenza Differentials we carry are:
- Schaeffler Cup, 15245 (50206233) – $7.99
- Driveworks Tapered Roller Bearing, S-JL-69349 (10733414) – $8.99
- National Taper Bearing Cup, 15245 (3272400) – $9.99
- Driveworks Taper Bearing Set, S-A-5 (5050529) – $11.99
- Schaeffler Cone, KL44649 (50205930) – $11.99
Does Advance Auto Parts sell Differentials for any other 1985 Oldsmobile models?
Yes. We stock Differentials for 8 other popular 1985 Oldsmobile models. Some of the most popular are 1985 Cutlass Supreme Differentials, 1985 98 Differentials, 1985 Delta 88 Differentials, 1985 Toronado Differentials, and 1985 Custom Cruiser Differentials.
What are the top-rated Differentials that fit the 1985 Oldsmobile Firenza?
Based on 1,380 reviews by customers, our 1985 Oldsmobile Firenza Differentials have an average customer rating of 4.6 stars. These are the highest-rated categories of Differentials for the 1985 Oldsmobile Firenza and their top-rated products:
- Differential Carrier Bearing Set
- Driveworks Taper Bearing Set, S-A-5 (5050529) – $11.99
- Differential Seals
- National Shaft Repair Sleeve, 99139 (18445088) – $41.49
What types of Differentials do you sell for my 1985 Oldsmobile Firenza?
As of 8/2/26, these are some of the most in-demand types of Differentials for a 1985 Oldsmobile Firenza:
Can I get help with 1985 Oldsmobile Firenza Differential orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Oldsmobile Differentials and more.
What is your return policy for Oldsmobile Firenza Differentials?
Advance Auto Parts keeps returns simple. For new Oldsmobile Firenza Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.