1991 Oldsmobile Delta 88 Differentials
Keep Your 1991 Oldsmobile Delta 88 in Top Shape with Quality Differentials
Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1991 Oldsmobile Delta 88 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Seals, Differential Ring and Pinions, and Differential Oil. 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 Valvoline and Motive Gear. For example, Valvoline Differentials start at just $14.49 with an average 4.8 star rating. Motive Gear offer similar pricing and quality, backed by strong customer feedback. With over 6 reviews and a solid 5 star average, you can shop with confidence knowing other Oldsmobile Delta 88 owners approve.
Competitive Prices and Extensive Inventory
The average price for a 1991 Oldsmobile Delta 88 Differential at Advance Auto Parts is around $58.15, with a range that starts at $14.29 and goes up to $135.99. With 5 options in stock from 4 trusted brands, finding the right fit is easy. Popular picks like Differential Master Bearing Kit – Timken, Camshaft Seal, and Shaft Seal start at just $14.29 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 1991 Oldsmobile Delta 88 in peak condition, inside and out.
Find Your Specific 1991 Oldsmobile Delta 88 Differentials
Looking for the perfect Differential for your 1991 Oldsmobile Delta 88? 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 Delta 88. Whether you’re driving a 1991 model or another popular model year like
1982,
1983,
1984,
1985,
1986,
1987,
1988,
1989, and
1990, 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 1991 Oldsmobile Delta 88 Differentials
Motive Gear – Differential Ring and Pinion (Part No.GM10-456)
Motive Gear – Differential Master Bearing Kit – Koyo (Part No.R10REMK)
from
$113.99
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
Product Features:
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Product Features:
- GM 10 BOLT 8.5″ MSTR KIT W/EATON OR AUBURN PRO
Motive Gear – Differential Ring and Pinion (Part No.GM7.5-342)
from
$224.99Product Features:
- GM 10BL 7.5&7.625 R/P 3.42 MG 10 3/8 X 18 LH THRED BLTS, PD=1.438
Motive Gear – Differential Ring and Pinion (Part No.GM7.5-308T)
from
$265.99
All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of our products undergo rigid quality control processes to insure proper fit, performance and longevity. Motive Gear products can be found in the winners circle at NHRA, IHRA, NMRA, NMCA, SODA, SCORE, BITD, Ultra-4 and NASCAR events because we offer unmatched selection and quality demanded by racers and their crew chiefs – the same quality and selection demanded by DIY customers and top mechanics. With four warehouses strategically located across North America, most Motive Gear orders arrive within 2-4 days. Win with Motive Gear!
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Dorman – Differential Ring and Pinion Set (Part No.697-812)
from
$216.99
This differential ring and pinion directly replaces the original equipment on specific vehicle years, makes and models.
Product Features:
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Product Features:
- Direct replacement – this ring and pinion set matches the fit and function of the original components on certain vehicle applications
- Effective fix – eliminates grinding and whining from failed original bearings
- Thoroughly tested – vehicle try-on testing and rigorous quality control measures ensure longevity
- Trustworthy quality – backed by team of designers and engineers in the United States
Pro-King – Differential Ring and Pinion (Part No.742G730G)
from
$265.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.
Product Features:
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Product Features:
- All products are designed to meet or exceed OE quality, form, fit and funtion.
Dorman – Differential Ring and Pinion Set (Part No.697-301)
from
$316.99
This differential ring and pinion directly replaces the original equipment on specific vehicle years, makes and models.
Product Features:
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Product Features:
- Direct replacement – this ring and pinion set matches the fit and function of the original components on certain vehicle applications
- Effective fix – eliminates grinding and whining from failed original bearings
- Thoroughly tested – vehicle try-on testing and rigorous quality control measures ensure longevity
- Trustworthy quality – backed by team of designers and engineers in the United States
Richmond Gear – RngPnn (Part No.49-0019-1)
from
$399.99
RngPnn
Motive Gear – Differential Bearing Kit – Koyo (Part No.R10R)
from
$101.99
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
Product Features:
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Product Features:
- KIT BRG&SEAL GM 8.5 10BLT NON IFS FRONT / REAR
Valvoline – DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart (Part No.822405)
from
$14.49
Valvoline DEXRON-VI/MERCON LV ATF is a full-synthetic transmission fluid formulated with advanced additive technology to meet and exceed the requirements of the General Motors DEXRON-VI specification. It is officially licensed and approved by GM and is fully back-serviceable and can be used wherever DEXRON-II and/or DEXRON-III are recommended. Recommended for use in the following applications: DEXRON-VI, DEXRON-III, DEXRON-II, and Allison C-4.
Product Features:
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Product Features:
- Formulated with full-synthetic 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
FAG US – Shaft Seal (Part No.SS2421)
from
$14.29
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.
Product Features:
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Product Features:
- High-precision and High-quality components used in all KITs
- Coverage of classic and new high-tech solutions for the best system coverage
Driveworks – Camshaft Seal (Part No.S-99139)
Popular 1991 Oldsmobile Delta 88 Differentials Categories
Most Popular Differential Seals for 1991 Oldsmobile Delta 88s
Enhance your 1991 Oldsmobile Delta 88 with one of the 2 Differential Seals we have in stock, starting at just $14.29.
Driveworks – Camshaft Seal (Part No.S-99139)
FAG US – Shaft Seal (Part No.SS2421)
from
$14.29
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.
Product Features:
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Product Features:
- High-precision and High-quality components used in all KITs
- Coverage of classic and new high-tech solutions for the best system coverage
Best-Selling 1991 Oldsmobile Delta 88 Differential Ring and Pinions
Upgrade your Delta 88 with one of our 2 best-selling Differential Ring and Pinions, earning an average 4 stars rating across 1 reviews.
Motive Gear – Differential Master Bearing Kit – Timken (Part No.R10RMKT)
from
$135.99
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
Product Features:
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Product Features:
- KIT BRG & SEAL GM 10 BOLT MASTER NON IFS FRONT / REAR
Motive Gear – Differential Bearing Kit – Koyo (Part No.R10R)
from
$101.99
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
Product Features:
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Product Features:
- KIT BRG&SEAL GM 8.5 10BLT NON IFS FRONT / REAR
Top-Quality Differential Oil for 1991 Oldsmobile Delta 88s
Choose a high-quality OEM or aftermarket Differential Oil for Oldsmobile Delta 88s and enjoy top-notch performance from $14.49.
Valvoline – DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart (Part No.822405)
from
$14.49
Valvoline DEXRON-VI/MERCON LV ATF is a full-synthetic transmission fluid formulated with advanced additive technology to meet and exceed the requirements of the General Motors DEXRON-VI specification. It is officially licensed and approved by GM and is fully back-serviceable and can be used wherever DEXRON-II and/or DEXRON-III are recommended. Recommended for use in the following applications: DEXRON-VI, DEXRON-III, DEXRON-II, and Allison C-4.
Product Features:
See More
Product Features:
- Formulated with full-synthetic 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
Top-Rated Differential Brands For Your 1991 Oldsmobile Delta 88
When it comes to finding the perfect Differential for your 1991 Oldsmobile Delta 88, 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 Valvoline and Motive Gear, and more, all known for their exceptional customer ratings (average brand rating of 4.8 stars) and competitive prices, as low as $14.49. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1991 Oldsmobile Delta 88, providing peace of mind with parts that meet or exceed OEM standards.
Popular Valvoline 1991 Oldsmobile Delta 88 Differentials
If you’re looking for a top-quality Differential for your 1991 Oldsmobile Delta 88, Advance Auto Parts has exactly what you need with our selection of Valvoline Differentials. We have 1 Valvoline Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $14.49, you’ll find the perfect Differential for your needs and budget. Valvoline Differentials for the 1991 Oldsmobile Delta 88 come highly rated, with over 2 customer reviews and an impressive average rating of 4.8 stars. Choosing a Valvoline Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
from
$14.49
(2)
DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart
“I’ve used this in my 2005 2500HD since I bought the truck with 20k on it now at 280k changed every other year maybe 40k I’d put on in two years,
I pu”
Top-Quality Motive Gear 1991 Oldsmobile Delta 88 Differentials
For those in search of a high-quality Differential for their 1991 Oldsmobile Delta 88, Advance Auto Parts offers a great selection of Motive Gear Differentials. With 1 Motive Gear 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 $135.99, giving you a range of options to suit your budget. Backed by over 1 customer ratings and an average rating of 4.0 stars, Motive Gear Differentials provide both reliability and excellent performance. Choosing a Motive Gear Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
from
$135.99
(1)
Differential Master Bearing Kit – Timken
“I appreciated being able to buy all the necessary parts in one kit. This was cheaper than buying an entire used rear axle. I like how the shrinkwrappi”
FAQs for 1991 Oldsmobile Delta 88 Differentials
What are the best-selling Differentials for 1991 Oldsmobile Delta 88s?
Out of 5 Differentials that fit 1991 Oldsmobile Delta 88s, the following parts are the top sellers:
- Differential Master Bearing Kit – Timken (20640076) – $135.99
- Camshaft Seal (11494113) – $23.99
- Shaft Seal (50206000) – $14.29
What’s the price range for 1991 Oldsmobile Delta 88 Differentials?
The prices of Differentials for the 1991 Oldsmobile Delta 88 range from $14.29 up to $135.99 for the most premium parts.
What is the average price of a Differential for a 1991 Oldsmobile Delta 88?
The average price for Differentials for the 1991 Oldsmobile Delta 88 is $58.15. 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 Delta 88 model years?
What are the cheapest Differentials for my 1991 Oldsmobile Delta 88?
The cheapest 1991 Oldsmobile Delta 88 Differentials we carry are:
- Shaft Seal (50206000) – $14.29
- DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart (12079201) – $14.49
- Camshaft Seal (11494113) – $23.99
- Differential Bearing Kit – Koyo (20640151) – $101.99
- Differential Master Bearing Kit – Timken (20640076) – $135.99
Does Advance Auto Parts sell Differentials for any other 1991 Oldsmobile models?
Yes. We stock Differentials for 8 other popular 1991 Oldsmobile models. Some of the most popular are 1991 Bravada Differentials, 1991 Cutlass Supreme Differentials, 1991 98 Differentials, 1991 Toronado Differentials, and 1991 Silhouette Differentials.
What are the top-rated Differentials that fit the 1991 Oldsmobile Delta 88?
Based on 6 reviews by customers, our 1991 Oldsmobile Delta 88 Differentials have an average customer rating of 5 stars. These are the highest-rated categories of Differentials for the 1991 Oldsmobile Delta 88 and their top-rated products:
- Differential Oil
- DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart (12079201) – $14.49
- Differential Ring and Pinions
- Differential Master Bearing Kit – Timken (20640076) – $135.99
What types of Differentials do you sell for my 1991 Oldsmobile Delta 88?
As of 11/2/25, these are some of the most in-demand types of Differentials for a 1991 Oldsmobile Delta 88:
Can I get help with 1991 Oldsmobile Delta 88 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 Delta 88 Differentials?
Advance Auto Parts keeps returns simple. For new Oldsmobile Delta 88 Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.