1978 Oldsmobile Cutlass Differentials

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Keep Your 1978 Oldsmobile Cutlass in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1978 Oldsmobile Cutlass looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Oil, Rear Differential Cover Gaskets, and Differential Pinion Bearing Kits. 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 Motive Gear, National, and Driveworks. For example, Motive Gear Differentials start at just $131.99 with an average 4.1 star rating. National and Driveworks offer similar pricing and quality, backed by strong customer feedback. With over 600 reviews and a solid 4.1 star average, you can shop with confidence knowing other Oldsmobile Cutlass owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1978 Oldsmobile Cutlass Differential at Advance Auto Parts is around $186.10, with a range that starts at $2.79 and goes up to $1,015.00. With 142 options in stock from 13 trusted brands, finding the right fit is easy. Popular picks like Driveworks Taper Bearing Set, S-A-6, Dorman – Help Differential Shaft Lock Bolt, 81048, and Yukon Gear 3 Qt – Penzoil 80W90 Conventional Gear Oil, 15002 start at just $6.79 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 1978 Oldsmobile Cutlass in peak condition, inside and out.

Essential 1978 Oldsmobile Cutlass Differentials

Richmond Gear – Richmond Gear Differential Spool, 81-1033-1 (Part No.81-1033-1)

Richmond Gear Differential Spool, 81-1033-1

from

$267.99
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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Yukon Gear – "Yukon Gear Posi Spring Kit for GM 7.5"", with Preload Plates, 33206" (Part No.33206)

"Yukon Gear Posi Spring Kit for GM 7.5"", with Preload Plates, 33206"

from

$153.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.
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Powertrax – Powertrax Differential Lock Assembly, 9207883005 (Part No.9207883005)

Powertrax Differential Lock Assembly, 9207883005

from

$551.99
For vehicles that are driven daily, the Power Trax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Power Trax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Power Trax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Power Trax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds.
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Yukon Gear – "Yukon Gear Posi Shim Kit for GM 7.5"" & 7.625"" Eaton Positraction, 16047" (Part No.16047)

"Yukon Gear Posi Shim Kit for GM 7.5"" & 7.625"" Eaton Positraction, 16047"

from

$42.99
Bearing race driver. No return. EXTERNAL SUPPLY>FDO>BACK ROOM-FDO>APPLICATION SPECIFIC from Yukon Gear
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National – National Tapered Roller Bearing Cone, M804049 (Part No.M804049)

National Tapered Roller Bearing Cone, M804049

from

$35.49
Manufactured with premium-grade steel, National taper bearing cones feature crowned raceways and rollers to ensure even load distribution.
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Yukon Gear – "Yukon Gear Carrier Installation Kit for GM 8.5"" Differential with HD Bearings, 57009" (Part No.57009)

"Yukon Gear Carrier Installation Kit for GM 8.5"" Differential with HD Bearings, 57009"

from

$148.99
Yukon Carrier Installation Kits are a convenient and low-cost solution for carrier changes in cases where one is upgrading to a positraction limited slip differential, a mechanical locker, or an air operated locker. These kits contain carrier bearings and races and a carrier shim kit.
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Yukon Gear – Yukon Gear Differential Cover B, 33572 (Part No.33572)

Yukon Gear Differential Cover B, 33572

from

$7.99
Yukon Gear Differential Cover B, 33572.
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Yukon Gear – Yukon Gear 3 Qt – Penzoil 80W90 Conventional Gear Oil, 15002 (Part No.15002)

Yukon Gear 3 Qt - Penzoil 80W90 Conventional Gear Oil, 15002

from

$44.99
Union 76 gear oil is a conventional non-synthetic 80W90 formulation designed for all types of differentials.
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Yukon Gear – "Yukon Gear Forged Yoke for GM 8.5"" with A 1350 U/Joint Size., 41093" (Part No.41093)

"Yukon Gear Forged Yoke for GM 8.5"" with A 1350 U/Joint Size., 41093"

from

$359.99
Yukon Gear and Axle manufactures a complete line of general replacement and performance series of pinion yokes for many street, racing, and heavy-duty off-road applications.
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National – National Bearing Race, HM89410 (Part No.HM89410)

National Bearing Race, HM89410

from

$11.49
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.
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Yukon Gear – "Yukon Gear GM 7.5"" Standard Open Side Gear Thrust Washer, 33389" (Part No.33389)

"Yukon Gear GM 7.5"" Standard Open Side Gear Thrust Washer, 33389"

from

$11.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.
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Yukon Gear – Yukon Gear Pinion Nut washer, 33167 (Part No.33167)

Yukon Gear Pinion Nut washer, 33167

from

$14.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.
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Yukon Gear – "Yukon Gear Standard Open Cross Pin (0.795"" Diameter) for 8.5"" GM – Some Eaton Positractions, 33401" (Part No.33401)

"Yukon Gear Standard Open Cross Pin (0.795"" Diameter) for 8.5"" GM - Some Eaton Positractions, 33401"

from

$49.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.
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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.
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Pro-King – Pro-King Differential Cross Shaft, 742G930 (Part No.742G930)

Pro-King Differential Cross Shaft, 742G930

from

$2.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.
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Yukon Gear – "Yukon Gear 8.5"" GM Extra HD Standard Open Case (Uses Larger Bearings), 20084" (Part No.20084)

"Yukon Gear 8.5"" GM Extra HD Standard Open Case (Uses Larger Bearings), 20084"

from

$232.99
“8.5”” GM EXTRA HD standard Open case (uses larger bearings).”
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Powertrax – Powertrax Differential Lock Assembly, 9207853005 (Part No.9207853005)

Powertrax Differential Lock Assembly, 9207853005

from

$544.99
For vehicles that are driven daily, the Power Trax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Power Trax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Power Trax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Power Trax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds.
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Yukon Gear – "Yukon Gear Chrome Cover for 7.5"" GM, 32014" (Part No.32014)

"Yukon Gear Chrome Cover for 7.5"" GM, 32014"

from

$67.99
These Yukon replacement diff covers take your rig a step beyond the boring factory look. They are the stock OE design finished in chrome.
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Driveworks – Driveworks Oil Seal, S-5778 (Part No.S-5778)

Driveworks Oil Seal, S-5778

from

$13.99
Value-priced seal meets all cataloged application requirements.
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Yukon Gear – "Yukon Gear 1541H Alloy Rear Axle for GM 7.5"" Passenger, Monte Carlo and El Camino, 21288" (Part No.21288)

"Yukon Gear 1541H Alloy Rear Axle for GM 7.5"" Passenger, Monte Carlo and El Camino, 21288"

from

$273.99
Yukon Gear & Axle offers an extensive line of general replacement and high-performance axles for passenger car, truck and SUV applications. High quality alloys and the latest in heat-treating technologies provide a stronger-than-stock axle for off-road, on the street, or at the track.
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Driveworks – Driveworks Taper Bearing Set, S-A-6 (Part No.S-A-6)

Driveworks Taper Bearing Set, S-A-6

from

$11.99
Value-priced bearing meets all cataloged application requirements.
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Yukon Gear – Yukon Gear Bearing Race Driver for Popular Ford, Gm, Amc, Chrysler, and Dana Diffs, 56022 (Part No.56022)

Yukon Gear Bearing Race Driver for Popular Ford, Gm, Amc, Chrysler, and Dana Diffs, 56022

from

$188.99
Yukon Gear & Axle offers a full line of top quality differential tools to save time and money.
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Yukon Gear – "Yukon Gear Pinion Depth Shims for GM 7.5"", 7.75"", 8.2"" & 12 Bolt Truck, 55008" (Part No.55008)

"Yukon Gear Pinion Depth Shims for GM 7.5"", 7.75"", 8.2"" & 12 Bolt Truck, 55008"

from

$21.99
Yukon shim kits are precision machined and tailored for each individual application to ensure you have the right shims for every set up.
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Motive Gear – Motive Gear Differential Crush Sleeve, 3954480 (Part No.3954480)

Motive Gear Differential Crush Sleeve, 3954480

from

$5.99
Motive Gear Differential Crush Sleeve, 3954480.
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Yukon Gear – "Yukon Gear Master Overhaul Kit for GM 8.5"" Differential with Aftermarket Positraction, 14088" (Part No.14088)

"Yukon Gear Master Overhaul Kit for GM 8.5"" Differential with Aftermarket Positraction, 14088"

from

$309.99
Yukon Master Overhaul Kits give you all the high-quality parts you need to start and finish every differential job. Yukon offers more tailor-made kits than any other manufacturer in the industry to meet your specific installation needs. This kit uses Timken bearings and races along with high quality seals and small parts. Yukon Master Overhaul Kits are the most comprehensive and complete kits on the market because Yukon does extensive research to ensure that every kit has everything you need for your application.
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Yukon Gear – "Yukon Gear Duragrip Posi For 8.2"" Buicks, Olds & Pontiac With 28 Spline Axles, 26024" (Part No.26024)

"Yukon Gear Duragrip Posi For 8.2"" Buicks, Olds & Pontiac With 28 Spline Axles, 26024"

from

$929.99
“The Yukon Dura Grip provides aggressive yet smooth traction to give you the confidence & performance you need. Get longer life and better traction with the heavy duty Yukon Dura Grip Positraction. The Yukon Dura Grip uses a nodular case and forged 4320 internals for added strength along with composite clutches for high performance and long life. All units are Rebuildable and many offer upgrades to increase aggressiveness for racing applications. Each unit carries a one year warranty against defects. This case is drilled for 3/8″” bolts. Some factory gears use 7/16″” bolts. If your factory gear uses 7/16″” bolts you will need to drill out the ring gear bolt holes.”
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Yukon Gear – "Yukon Gear 8.5"" Oldsmobile 442 & Cutlas 10 Bolt Ring Gear & 12 Bolt Cover, 23022" (Part No.23022)

"Yukon Gear 8.5"" Oldsmobile 442 & Cutlas 10 Bolt Ring Gear & 12 Bolt Cover, 23022"

from

$13.99
“8.5”” Oldsmobile 442 & Cutlas 10 bolt ring gear & 12 bolt cover.”
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USA Standard Gear – USA Standard Gear Differential Spider Gear Kits, 39026 (Part No.39026)

USA Standard Gear Differential Spider Gear Kits, 39026

from

$209.99
USA Standard Master Overhaul kits let you finish your install with confidence. This kit uses Koyo bearings and races. Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable), threading locking compound, marking compound with brush and gasket.
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Most Popular Differential Oil for 1978 Oldsmobile Cutlasses

Enhance your 1978 Oldsmobile Cutlass with one of the 3 Differential Oil we have in stock, starting at just $35.99.

Yukon Gear – Yukon Gear 3 Qt – Penzoil 80W90 Conventional Gear Oil, 15002 (Part No.15002)

Yukon Gear 3 Qt - Penzoil 80W90 Conventional Gear Oil, 15002

from

$44.99
Union 76 gear oil is a conventional non-synthetic 80W90 formulation designed for all types of differentials.
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Yukon Gear – "Yukon Gear Redline Synthetic ""Shock Proof"" Oil – 4 Quarts, 15004" (Part No.15004)

"Yukon Gear Redline Synthetic ""Shock Proof"" Oil - 4 Quarts, 15004"

from

$137.99
Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection.
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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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Best-Selling 1978 Oldsmobile Cutlass Rear Differential Cover Gaskets

Upgrade your Cutlass with one of our 2 best-selling Rear Differential Cover Gaskets, earning an average 5 stars rating across 45 reviews.

Felpro – Felpro Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket, RDS 55072 (Part No.RDS 55072)

Felpro Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket, RDS 55072

from

$9.49
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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Yukon Gear – Yukon Gear 7.5 GM Cover Gasket, 23018 (Part No.23018)

Yukon Gear 7.5 GM Cover Gasket, 23018

from

$11.99
7.5 GM cover gasket. EXTERNAL SUPPLY>FDO>BACK ROOM-FDO>APPLICATION SPECIFIC from Yukon Gear
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Top-Quality Differential Pinion Bearing Kits for 1978 Oldsmobile Cutlasses

Choose a high-quality OEM or aftermarket Differential Pinion Bearing Kit for Oldsmobile Cutlasses and enjoy top-notch performance from $11.99.

Driveworks – Driveworks Taper Bearing Set, S-A-6 (Part No.S-A-6)

Driveworks Taper Bearing Set, S-A-6

from

$11.99
Value-priced bearing meets all cataloged application requirements.
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Yukon Gear – "Yukon Gear Pinion Install Kit for ’81 and Older GM 7.5"" Differential, 13063" (Part No.13063)

"Yukon Gear Pinion Install Kit for '81 and Older GM 7.5"" Differential, 13063"

from

$201.99
Yukon Pinion Installation Kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings and races can be reused. This kit features Timken bearings and races along with high-quality seals and small parts. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your gear set.
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Top Picks for 1978 Oldsmobile Cutlass Differential Covers

Invest in one of our 3 durable Differential Covers for your 1978 Oldsmobile, knowing you’re getting trusted brands and expert craftsmanship.

Yukon Gear – "Yukon Gear Steel Cover for GM 7.5"" & 7.625"", 32331" (Part No.32331)

"Yukon Gear Steel Cover for GM 7.5"" & 7.625"", 32331"

from

$67.99
These Yukon replacement diff covers are a direct bolt-on.
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Yukon Gear – "Yukon Gear Chrome Cover for 7.5"" GM, 32014" (Part No.32014)

"Yukon Gear Chrome Cover for 7.5"" GM, 32014"

from

$67.99
These Yukon replacement diff covers take your rig a step beyond the boring factory look. They are the stock OE design finished in chrome.
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Pro-King – Pro-King Differential Carrier Cover, 741A758 (Part No.741A758)

Pro-King Differential Carrier Cover, 741A758

from

$29.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.
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Top-Rated Differential Pinion Seals for 1978 Oldsmobile Cutlasses

Make a smart move for your 1978 Oldsmobile Cutlass with products all priced from $9.99 to $19.99.

Driveworks – Driveworks Oil Seal, S-2043 (Part No.S-2043)

Driveworks Oil Seal, S-2043

from

$10.79
Value-priced seal meets all cataloged application requirements.
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National – National Multi-Purpose Seal, 8610 (Part No.8610)

National Multi-Purpose Seal, 8610

from

$18.29
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 Oil Seal, S-8610 (Part No.S-8610)

Driveworks Oil Seal, S-8610

from

$11.99
Value-priced seal meets all cataloged application requirements.
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Yukon Gear – "Yukon Gear 7.2"" GM 7.5"" GM & 8.2"" GM Pinion Seal, 30192" (Part No.30192)

"Yukon Gear 7.2"" GM 7.5"" GM & 8.2"" GM Pinion Seal, 30192"

from

$9.99
Yukon Mighty Seals use the latest design and manufacturing technologies to produce a precision fit that seals tight and lasts for years to come.
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Schaeffler – Schaeffler Shaft Seal, SS2588 (Part No.SS2588)

Schaeffler Shaft Seal, SS2588

from

$19.99
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.
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Top-Rated Differential Brands For Your 1978 Oldsmobile Cutlass

When it comes to finding the perfect Differential for your 1978 Oldsmobile Cutlass, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 13 trusted brands. We carry the most popular Differential brands including National, Driveworks, and Motive Gear, and more, all known for their exceptional customer ratings (average brand rating of 4.3 stars) and competitive prices, as low as $10.79. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1978 Oldsmobile Cutlass, providing peace of mind with parts that meet or exceed OEM standards.

Popular National 1978 Oldsmobile Cutlass Differentials

If you’re looking for a top-quality Differential for your 1978 Oldsmobile Cutlass, 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 $11.99 and an average cost of $18.59, you’ll find the perfect Differential for your needs and budget. National Differentials for the 1978 Oldsmobile Cutlass come highly rated, with over 7 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 Multi-Purpose Seal, 8610
from $18.29
(4)
National Multi-Purpose Seal, 8610
“Perfect”
National Tapered Roller Bearing Cone, HM89449
from $25.49
(1)
National Tapered Roller Bearing Cone, HM89449
“This Is The One That Fit My 1971 CHEVY TRUCK 12 BOLT PINION REAR BACK BEARING”
National Bearing Race, LM501314
from $11.99
(2)
National Bearing Race, LM501314
“good quality & price”

Top-Quality Driveworks 1978 Oldsmobile Cutlass Differentials

For those in search of a high-quality Differential for their 1978 Oldsmobile Cutlass, Advance Auto Parts offers a great selection of Driveworks Differentials. With 2 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 $10.79, with an average price of $11.39, giving you a range of options to suit your budget. Backed by over 39 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 Oil Seal, S-2043
from $10.79
(1)
Driveworks Oil Seal, S-2043
“Didn’t fit my 1992 K1500 10 bolt 8.5″ ring gear rear end. Was told wrong part.”
Driveworks Taper Bearing Set, S-A-6
from $11.99
(38)
Driveworks Taper Bearing Set, S-A-6
“HELPFUL ASSOCIATE”

FAQs for 1978 Oldsmobile Cutlass Differentials

What are the best-selling Differentials for 1978 Oldsmobile Cutlasses?

Out of 142 Differentials that fit 1978 Oldsmobile Cutlasses, the following parts are the top sellers:

What’s the price range for 1978 Oldsmobile Cutlass Differentials?

The prices of Differentials for the 1978 Oldsmobile Cutlass range from $2.79 up to $1,015.00 for the most premium parts.

What is the average price of a Differential for a 1978 Oldsmobile Cutlass?

The average price for Differentials for the 1978 Oldsmobile Cutlass is $186.10. 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 Cutlass model years?

Yes, we carry Differentials for 25 model years of Oldsmobile Cutlasses between 1961 and 1999. The following model years are the most popular for Differential purchases: 1999, 1998, 1997, 1988, 1983, 1982, 1981, 1980, and 1979.

What are the cheapest Differentials for my 1978 Oldsmobile Cutlass?

The cheapest 1978 Oldsmobile Cutlass Differentials we carry are:

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

Yes. We stock Differentials for 8 other popular 1978 Oldsmobile models. Some of the most popular are 1978 Cutlass Supreme Differentials, 1978 98 Differentials, 1978 Delta 88 Differentials, 1978 Toronado Differentials, and 1978 Custom Cruiser Differentials.

What types of Differentials do you sell for my 1978 Oldsmobile Cutlass?

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

Can I get help with 1978 Oldsmobile Cutlass 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 Cutlass Differentials?

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