1991 Oldsmobile Delta 88 Differentials

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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 Pinion Pilot Bearings, 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 National, Valvoline, and Motive Gear. For example, National Differentials start at just $43.99 with an average 4.3 star rating. Valvoline and Motive Gear offer similar pricing and quality, backed by strong customer feedback. With over 898 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 $68.39, with a range that starts at $23.99 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, Differential Bearing Kit – Koyo, and Camshaft Seal start at just $23.99 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 1991 Oldsmobile Delta 88 in peak condition, inside and out.

Essential 1991 Oldsmobile Delta 88 Differentials

Driveworks – Camshaft Seal (Part No.S-99139)

Camshaft Seal

from

$23.99
Product Features:
  • Brand may vary by location
See More

National – Shaft Repair Sleeve (Part No.99170)

Shaft Repair Sleeve

from

$46.99
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.

Product Features:
  • Designed to repair damaged, grooved or worn shafts
  • Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
  • Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
  • Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
  • Easy to install with removable flange and installation tool
See More

National – Shaft Repair Sleeve (Part No.99193)

Shaft Repair Sleeve

from

$43.99
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.

Product Features:
  • Designed to repair damaged, grooved or worn shafts
  • Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
  • Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
  • Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
  • Easy to install with removable flange and installation tool
See More

Valvoline – MaxLife Multi-Vehicle Automatic Transmission Fluid, 1 Gallon (Part No.773775)

MaxLife Multi-Vehicle Automatic Transmission Fluid, 1 Gallon

from

$35.99
Valvoline MaxLife Multi-Vehicle ATF is a full-synthetic formulation with advanced additives to prevent the major causes of transmission breakdown and help extend transmission life.  Developed to help prevent leaks, maximize transmission performance, reduce transmission wear, and maintain smooth shifting longer than conventional fluids. It is suitable for use in a broad range of ATF applications including most Ford, GM, Toyota, Honda, Nissan, Hyundai, BMW, Mercedes, Volvo, VW & Audi. Recommended for use in the following applications: GM DEXRON-II, DEXRON-III, DEXRON-VI, Ford MERCON LV, Toyota/Lexus Type T, T-II, T-IV, WS, Honda/Acura, ATF-Z1, Nissan/Infiniti Matic-D, Matic-J, Matric-K, Matic-S, Hyundai/Kia SP-II, SP-III, SP-IV, SPH-IV, BMW 7045E, ETL 8072B, LA2634, LT71141, Allison C-4, Mercedes Benz NAG-1, Volvo 1161521, 1161540, 97340, 1273.41, and VW/Audi G-052-025-A2, G-052-162-A1. For CVT applications Valvoline recommends Valvoline Full Synthetic CVT Fluid.

Product Features:
  • Formulated with full-synthetic base oils and long life friction modifiers to help improve smooth shifting, eliminate slippage and shudder, prevent clutch wear and improve drivability longer than conventional fluids
  • High-performance seal conditioners maintain and preserve the elasticity of seals to help prevent leaks in high mileage transmissions
  • 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
See More

Dorman – Differential Ring and Pinion Set (Part No.697-300)

Differential Ring and Pinion Set

from

$301.99
This differential ring and pinion directly replaces the original equipment on specific vehicle years, makes and models.

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
See More

Motive Gear – Differential Ring and Pinion (Part No.GM7.5-410A)

Differential Ring and Pinion

from

$175.99


Product Features:
  • GM10 BL 7.5″ 4.10
See More

Richmond Gear – RngPnn (Part No.79-0027-1)

RngPnn

from

$513.99
RngPnn

Richmond Gear – RngPnn (Part No.69-0173-1)

RngPnn

from

$407.99
RngPnn

Motive Gear – Differential Ring and Pinion (Part No.GM10-273)

Differential Ring and Pinion

from

$235.99


Product Features:
  • GM 10BL 8.5 R/P 2.73 MG FRT/REAR
See More

Motive Gear – Differential Bearing Kit – Timken (Part No.R10RET)

Differential Bearing Kit - Timken

from

$115.99
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:
  • GM 10 BOLT 8.5 BRG KIT W/EATON OR AUBURN PRO TIMKEN
See More

Richmond Gear – RngPnn (Part No.69-0171-1)

RngPnn

from

$360.99
RngPnn

Motive Gear – Performance Differential Ring and Pinion (Part No.G875323)

Performance Differential Ring and Pinion

from

$237.99


Product Features:
  • GM 10BL 7.5 &7.625 R/P 3.23 MGP 10 3/8 X 18 LH THRED BLTS, PD=1.438
See More

Motive Gear – Performance Differential Ring and Pinion (Part No.BP882355)

Performance Differential Ring and Pinion

from

$303.99


Product Features:
  • BOP R/P 8.2″ 10BL 3.55
See More

Dorman – Differential Ring and Pinion Set (Part No.697-812)

Differential Ring and Pinion Set

from

$216.99
This differential ring and pinion directly replaces the original equipment on specific vehicle years, makes and models.

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
See More

Richmond Gear – RngPnn (Part No.79-0074-1)

RngPnn

from

$566.99
RngPnn

Motive Gear – Differential Ring and Pinion (Part No.GM10-411A)

Differential Ring and Pinion

from

$179.99


Product Features:
  • GM 10BL 8.5 R/P 4.11A MG FRT/REAR
See More

Motive Gear – Differential Master Bearing Kit – Timken (Part No.R10REMKT)

Differential Master Bearing Kit - Timken

from

$137.99
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:
  • GM 10 BOLT 8.5 BRG MSTR KIT W/EATON OR AUBURN PRO TIMKEN
See More

Motive Gear – Differential Ring and Pinion (Part No.GM10-308)

Differential Ring and Pinion

from

$214.99


Product Features:
  • GM 10BL 8.5 R/P 3.08 MG FRT/REAR
See More

Motive Gear – Differential Ring and Pinion (Part No.GM7.5-373)

Differential Ring and Pinion

from

$224.99


Product Features:
  • GM 10BL 7.5&7.625 R/P 3.73 MG 10 3/8 X 18 LH THRED BLTS, PD=1.438
See More

Motive Gear – Differential Ring and Pinion (Part No.GM10-456)

Differential Ring and Pinion

from

$212.99


Product Features:
  • GM 10BL 8.5″ R/P 4.56 MG FRT/REAR
See More

Motive Gear – Differential Ring and Pinion (Part No.GM10-342A)

Differential Ring and Pinion

from

$234.99


Product Features:
  • GM 10BL 8.5 R/P 3.42A MG FRT/REAR
See More

Motive Gear – Differential Ring and Pinion (Part No.GM7.5-323)

Differential Ring and Pinion

from

$216.99


Product Features:
  • GM 10BL 7.5&7.625 R/P 3.23 MG 10 3/8 X 18 LH THRED BLTS, PD=1.438
See More

Motive Gear – Performance Differential Ring and Pinion (Part No.G888342)

Performance Differential Ring and Pinion

from

$248.99


Product Features:
  • GM 12BL 8.875 R/P 3.42 MGP
See More

Dorman – Differential Ring and Pinion Set (Part No.697-301)

Differential Ring and Pinion Set

from

$316.99
This differential ring and pinion directly replaces the original equipment on specific vehicle years, makes and models.

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
See More

Motive Gear – Differential Ring and Pinion (Part No.GM10-373A)

Differential Ring and Pinion

from

$241.99


Product Features:
  • GM 10BL 8.5 R/P 3.73A MG FRT/REAR
See More

Motive Gear – Performance Differential Ring and Pinion (Part No.BP882373)

Performance Differential Ring and Pinion

from

$319.99


Product Features:
  • BOP R/P 8.2″ 10BLT 3.73
See More

Motive Gear – Differential Ring and Pinion (Part No.GM10-373)

Differential Ring and Pinion

from

$243.99


Product Features:
  • GM 10BL 8.5 R/P 3.73 MG FRT/REAR
See More

Motive Gear – Differential Master Bearing Kit – Koyo (Part No.R10REMK)

Differential Master Bearing Kit - Koyo

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:
  • GM 10 BOLT 8.5″ MSTR KIT W/EATON OR AUBURN PRO
See More

Most Popular Differential Pinion Pilot Bearings for 1991 Oldsmobile Delta 88s

Enhance your 1991 Oldsmobile Delta 88 with one of the 2 Differential Pinion Pilot Bearings we have in stock, starting at just $23.99.

National – Shaft Repair Sleeve (Part No.99193)

Shaft Repair Sleeve

from

$43.99
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.

Product Features:
  • Designed to repair damaged, grooved or worn shafts
  • Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
  • Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
  • Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
  • Easy to install with removable flange and installation tool
See More

Driveworks – Camshaft Seal (Part No.S-99139)

Camshaft Seal

from

$23.99
Product Features:
  • Brand may vary by location
See More

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)

Differential Master Bearing Kit - Timken

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:
  • KIT BRG & SEAL GM 10 BOLT MASTER NON IFS FRONT / REAR
See More

Motive Gear – Differential Bearing Kit – Koyo (Part No.R10R)

Differential Bearing Kit - Koyo

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:
  • KIT BRG&SEAL GM 8.5 10BLT NON IFS FRONT / REAR
See More

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 $35.99.

Valvoline – MaxLife Multi-Vehicle Automatic Transmission Fluid, 1 Gallon (Part No.773775)

MaxLife Multi-Vehicle Automatic Transmission Fluid, 1 Gallon

from

$35.99
Valvoline MaxLife Multi-Vehicle ATF is a full-synthetic formulation with advanced additives to prevent the major causes of transmission breakdown and help extend transmission life.  Developed to help prevent leaks, maximize transmission performance, reduce transmission wear, and maintain smooth shifting longer than conventional fluids. It is suitable for use in a broad range of ATF applications including most Ford, GM, Toyota, Honda, Nissan, Hyundai, BMW, Mercedes, Volvo, VW & Audi. Recommended for use in the following applications: GM DEXRON-II, DEXRON-III, DEXRON-VI, Ford MERCON LV, Toyota/Lexus Type T, T-II, T-IV, WS, Honda/Acura, ATF-Z1, Nissan/Infiniti Matic-D, Matic-J, Matric-K, Matic-S, Hyundai/Kia SP-II, SP-III, SP-IV, SPH-IV, BMW 7045E, ETL 8072B, LA2634, LT71141, Allison C-4, Mercedes Benz NAG-1, Volvo 1161521, 1161540, 97340, 1273.41, and VW/Audi G-052-025-A2, G-052-162-A1. For CVT applications Valvoline recommends Valvoline Full Synthetic CVT Fluid.

Product Features:
  • Formulated with full-synthetic base oils and long life friction modifiers to help improve smooth shifting, eliminate slippage and shudder, prevent clutch wear and improve drivability longer than conventional fluids
  • High-performance seal conditioners maintain and preserve the elasticity of seals to help prevent leaks in high mileage transmissions
  • 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
See More

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, National, 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 $35.99. 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 $35.99, you’ll find the perfect Differential for your needs and budget. Valvoline Differentials for the 1991 Oldsmobile Delta 88 come highly rated, with over 446 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.
MaxLife Multi-Vehicle Automatic Transmission Fluid, 1 Gallon
from $35.99
(446)
MaxLife Multi-Vehicle Automatic Transmission Fluid, 1 Gallon
“Good quality great price”

Top-Quality National 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 National Differentials. With 1 National 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 $43.99, giving you a range of options to suit your budget. Backed by over 2 customer ratings and an average rating of 4.3 stars, National Differentials provide both reliability and excellent performance. Choosing a National Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
Shaft Repair Sleeve
from $43.99
(2)
Shaft Repair Sleeve
“As a mechanic I dont have time or money to waste on inferior products, which this is not. Great product,great price”

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:

What’s the price range for 1991 Oldsmobile Delta 88 Differentials?

The prices of Differentials for the 1991 Oldsmobile Delta 88 range from $23.99 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 $68.39. 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?

Yes, we carry Differentials for 25 model years of Oldsmobile Delta 88s between 1965 and 1990. The following model years are the most popular for Differential purchases: 1990, 1989, 1988, 1987, 1986, 1985, 1984, 1983, and 1982.

What are the cheapest Differentials for my 1991 Oldsmobile Delta 88?

The cheapest 1991 Oldsmobile Delta 88 Differentials we carry are:

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 898 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:

What types of Differentials do you sell for my 1991 Oldsmobile Delta 88?

As of 3/1/26, 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.