1981 Buick Skylark Differentials

Name: DEXRON - VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart
Brand: Valvoline
SKU: 822405
Price: 14.49 USD
Rating: 5.0 (2 reviews)

Keep Your 1981 Buick Skylark in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1981 Buick Skylark looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Rear Differential Cover Gaskets, Pinion Shaft Bearings, and Differential 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 Valvoline and National. For example, Valvoline Differentials start at just $14.49 with an average 4.8 star rating. National offer similar pricing and quality, backed by strong customer feedback. With over 246 reviews and a solid 5 star average, you can shop with confidence knowing other Buick Skylark owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1981 Buick Skylark Differential at Advance Auto Parts is around $17.36, with a range that starts at $2.59 and goes up to $82.99. With 23 options in stock from 5 trusted brands, finding the right fit is easy. Popular picks like DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart, Differential Rebuild Kit, and Differential Cross Shaft start at just $11.99 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 1981 Buick Skylark in peak condition, inside and out.

Looking for the perfect Differential for your 1981 Buick Skylark? 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 Buick Skylark. Whether you’re driving a 1981 model or another popular model year like 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, and 1998, 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 1981 Buick Skylark Differentials

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:

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

from

$2.99

Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:

All products are designed to meet or exceed OE quality, form, fit and funtion.

from

$105.99

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:

MSTR BRG KT – 12 BOLT CAR

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$9.99

Product Features:

KIT SHIM PINION

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$2.99

Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:

All products are designed to meet or exceed OE quality, form, fit and funtion.

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$6.99

This differential crush sleeve is designed to match the fit and function of the original sleeve on specified vehicles, and is engineered for durability and reliable performance.

Product Features:

Direct replacement – this differential crush sleeve is designed to match the fit and function of the original sleeve on specified vehicles
Required replacement – when servicing the differential
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

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$6.99

Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:

All products are designed to meet or exceed OE quality, form, fit and funtion.

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$13.99

8.2″ Buick, Oldsmobile, Pontiac cover gasket, 10 bolt holes.

Product Features:

Cover gasket
Fits 8.2″ in Buick, Oldsmobile and Pontiac

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$24.99

Mr. Gasket Axle Housing/Differential Cover or Rear End Gaskets are manufactured from a .047 inch thick cellulose/nitrile composite gasket material for excellent sealing and durability. They are precision die-cut for an excellent fit. Fits 1965-1970 Buick, Olds, Pontiac, 10 bolt 8.20 inch ring gear.

Product Features:

.047″ thick cellulose/nitrile composite gasket material
Precision die cut
Reusable

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$153.99

HM89449 set-up bearing (one bearing). No return.

Product Features:

Set up bearing
Fits HM89449 pinion bearing
Easily slips on and off pinion journal to allow for pinion depth adjustment

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$17.49

Product Features:

Brand may vary by location

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$6.99

Cross pin bolt for Chrysler 8.25″, 9.25″ rear, Ford 7.5″, 8.8″, GM 12 bolt car & truck, 7.2″ IFs, 7.5″, 7.6″, 8.0″, 8.25″ IFS & 8.5″.

Product Features:

Cross pin bolt for Chrysler 8.25″ and 9.25″ rear, Ford 7.5″ and 8.8″, GM 12 botl car and truck, 8.5″, 8.25″ IFS, 8.0″, 7.625″, 7.5″ and 7.2″ IFS

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$24.29

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.

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

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$6.99

Ring gear bolt for GM 12 bolt car & truck, 8.2″, 8.2″ for Buick/Olds/Pontiac, 63-79 Corvette & 55-62 GM Car & Truck. 3/8″ x 24.

Product Features:

Ring gear bolt for GM 12 bolt passenger car and truck, 1955-1964 passenger car and truck, GM 8.2″, 8.2″ Buick, Oldsmobile and Pontiac and 1963-1979 Corvette
3/8″ x 24 thread

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$2.99

Product Features:

RING GEAR BOLT 8.5″ 7.5″ 7/16 X 20 LEFT HAND

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$8.99

7.5 & 7.625 Standard Open Pinion gear Thrust Washer.

Product Features:

Pinion gear thrust washer for GM 7.5″ and 7.625″
Fits standard open differentials only

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$2.59

Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:

All products are designed to meet or exceed OE quality, form, fit and funtion.

from

$16.99

Product Features:

CONSISTENT PERFORMANCE: Matched cup and cone components ensure consistent performance
PREMIUM MATERIALS: Precision manufactured using premium-grade steel for outstanding durability and performance
SMOOTH ROTATION: Crowned raceways and rollers for even load distribution
OE-STYLE DESIGN: Engineered to meet OE specifications
COMPREHENSIVE COVERAGE: Industry-leading coverage for domestic and import applications
RIGOROUS TESTING: Comprehensive testing throughout design and development processes by National engineers for quality you can count on

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$57.99

8.5, 9.5, & 8.2 Buick, Oldsmobile, Pontiac GM REDI sleeve yoke saver.Yukon Mighty seal.

Product Features:

Pinion Redi-sleeve
Fits GM 8.5″, 9.5″ and 8.2″ Buick, Oldsmobile and Pontiac

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$37.99

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

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$28.49

Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:

All products are designed to meet or exceed OE quality, form, fit and funtion.

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:

High-precision and High-quality components used in all KITs
Coverage of classic and new high-tech solutions for the best system coverage

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$23.99

Product Features:

Brand may vary by location

from

$214.99

Product Features:

Spider gear kit
Fits GM 8.5″ 30 spline open differential
Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.

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$279.99

Yukon spider gear set for GM 7.5″ & 7.625″ Dura Grip posi, 26 spline. This kit does not include clutches. This kit fits Yukon Dura Grip ONLY.

Product Features:

Spider gear kit
Fits GM gm 7.5″ with 26 spline Dura Grip positraction
Includes two side gears, four pinion gears, cross pin shaft, roll pin and spider gear thrust washers.

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$19.99

Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:

All products are designed to meet or exceed OE quality, form, fit and funtion.

from

$217.99

Yukon standard open spider gear kit for 8.5″ GM with 28 spline axles. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. All components come with a one year warranty against manufacturing defects.

Product Features:

Spider gear kit
Fits GM 8.5″ open differential with 28 spline axles
Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.

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$8.99

High-quality Differential Carrier Shim Kit

Product Features:

CARRIER SHIMS 12 BOLT GM CAR & TRUCK ALSO GM8.6″ 99-ON

Popular 1981 Buick Skylark Differentials Categories

Differential Oil

Pinion Shaft Bearings

Rear Differential Cover Gaskets

Differential Pinion Shaft Lock Bolts

Differential Bearings

Differential Pinion Pilot Bearings

Differential Bearing Kits

Front Differential Pinion Bearings

Differential Carrier Shim Kits

Differential Cover Plugs

Differential Pinion Supports

Differential Seals

Differential Ring Gear Bolts

Differential Crush Sleeves

Differential Pinion Shims

Differential Pinion Gear Thrust Washers

Most Popular Rear Differential Cover Gasket for 1981 Buick Skylarks

Enhance your 1981 Buick Skylark with this popular Rear Differential Cover Gasket we have in stock, for $31.49.

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from

$31.49

Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:

All products are designed to meet or exceed OE quality, form, fit and funtion.

Best-Selling 1981 Buick Skylark Pinion Shaft Bearing

Upgrade your Skylark with our best-selling Pinion Shaft Bearing with a 4 Starts rating across 39 reviews.

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from

$16.99

Product Features:

CONSISTENT PERFORMANCE: Matched cup and cone components ensure consistent performance
PREMIUM MATERIALS: Precision manufactured using premium-grade steel for outstanding durability and performance
SMOOTH ROTATION: Crowned raceways and rollers for even load distribution
OE-STYLE DESIGN: Engineered to meet OE specifications
COMPREHENSIVE COVERAGE: Industry-leading coverage for domestic and import applications
RIGOROUS TESTING: Comprehensive testing throughout design and development processes by National engineers for quality you can count on

Top-Quality Differential Bearings for 1981 Buick Skylarks

Choose a high-quality OEM or aftermarket Differential Bearing for Buick Skylarks and enjoy top-notch performance from $6.69.

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from

$21.79

High-precision and High-quality components used in all KITs
Coverage of classic and new high-tech solutions for the best system coverage

from

$21.29

High-precision and High-quality components used in all KITs
Coverage of classic and new high-tech solutions for the best system coverage

from

$7.29

Product Features:

PREMIUM MATERIALS: Precision manufactured using premium-grade steel for outstanding durability and performance
SMOOTH ROTATION: Crowned raceways for even load distribution
OE-STYLE DESIGN: Engineered to meet OE specifications
COMPREHENSIVE COVERAGE: Industry-leading coverage for domestic and import applications
RIGOROUS TESTING: Comprehensive testing throughout design and development processes by National engineers for quality you can count on

from

$6.69

High-precision and High-quality components used in all KITs
Coverage of classic and new high-tech solutions for the best system coverage

Top Picks for 1981 Buick Skylark Differential Oil

Invest in one of our 2 durable Differential Oil for your 1981 Buick, knowing you’re getting trusted brands and expert craftsmanship.

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from

$14.49

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

from

$11.99

Valvoline DEX/MERC ATF is a high-quality transmission fluid formulated to meet the challenging demands of many automatic transmissions. Its responsive low-temperature fluidity is beneficial in both electronic and hydraulic controlled transmissions and transaxles. Recommended for use in the following applications: MERCON*, DEXRON*-III, Ford M2C138-CJ and M2C166-H, Allison C-4 and TES-389, and Caterpillar TO-2.

Product Features:

Formulated with premium 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

Our Differential Ring Gear Bolts for 1981 Buick Skylarks

Make a smart move for your 1981 Buick Skylark with our Differential Ring Gear Bolt for $2.99.

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from

$2.99

Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:

All products are designed to meet or exceed OE quality, form, fit and funtion.

Top-Rated Differential Brands For Your 1981 Buick Skylark

When it comes to finding the perfect Differential for your 1981 Buick Skylark, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 5 trusted brands. We carry the most popular Differential brands including Valvoline and National, 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 1981 Buick Skylark, providing peace of mind with parts that meet or exceed OEM standards.

Popular Valvoline 1981 Buick Skylark Differentials

If you’re looking for a top-quality Differential for your 1981 Buick Skylark, 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 1981 Buick Skylark 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 National 1981 Buick Skylark Differentials

For those in search of a high-quality Differential for their 1981 Buick Skylark, 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 $16.99, giving you a range of options to suit your budget. Backed by over 39 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.

from $16.99

(39)

Multi-Purpose Bearing

“Great bearings”

FAQs for 1981 Buick Skylark Differentials

What are the best-selling Differentials for 1981 Buick Skylarks?

Out of 23 Differentials that fit 1981 Buick Skylarks, the following parts are the top sellers:

DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart (12079139) – $11.99
Differential Rebuild Kit (10282292) – $82.99
Differential Cross Shaft (10282169) – $28.49

What’s the price range for 1981 Buick Skylark Differentials?

The prices of Differentials for the 1981 Buick Skylark range from $2.59 up to $82.99 for the most premium parts.

What is the average price of a Differential for a 1981 Buick Skylark?

The average price for Differentials for the 1981 Buick Skylark is $17.36. 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 Buick Skylark model years?

Yes, we carry Differentials for 35 model years of Buick Skylarks between 1954 and 1998. The following model years are the most popular for Differential purchases: 1998, 1997, 1996, 1995, 1994, 1993, 1992, 1991, and 1990.

What are the cheapest Differentials for my 1981 Buick Skylark?

The cheapest 1981 Buick Skylark Differentials we carry are:

Differential Pinion Gear Washer (10282533) – $2.59
Differential Cross Shaft (10282201) – $2.99
Differential Ring Gear Bolt (10282159) – $2.99
Differential Crush Sleeve (10282146) – $2.99
Crush Sleeve (10593152) – $3.99

Does Advance Auto Parts sell Differentials for any other 1981 Buick models?

Yes. We stock Differentials for 5 other popular 1981 Buick models. Some of the most popular are 1981 Regal Differentials, 1981 Century Differentials, 1981 LeSabre Differentials, 1981 Riviera Differentials, and 1981 Electra Differentials.

What are the top-rated Differentials that fit the 1981 Buick Skylark?

The one 1981 Buick Skylark Differential we have in stock is the Differential Pinion Gear Washer. It costs $2.59.

What types of Differentials do you sell for my 1981 Buick Skylark?

As of 11/2/25, these are some of the most in-demand types of Differentials for a 1981 Buick Skylark:

Can I get help with 1981 Buick Skylark 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 Skylark Differentials?

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

1981 Buick Skylark Differentials

Valvoline – DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart (Part No.822405)

Pro-King – Differential Cross Shaft (Part No.742G930)

Motive Gear – Differential Master Bearing Kit – Koyo (Part No.R12CRMK)

Motive Gear – Differential Pinion Shim Kit (Part No.1102)

Pro-King – Differential Crush Sleeve (Part No.742G034)

Dorman – Help – Pinion Crush Sleeves (Part No.81058)

Pro-King – Differential Cover Plug (Part No.742G484)

Yukon Gear – 8.2" Buick, Oldsmobile, Pontiac Cover Gasket, 10 Bolt Holes (Part No.23019)

Mr. Gasket – Differential Gasket (Part No.84)

Yukon Gear – Set Up Bearing (Part No.56044)

Driveworks – Tapered Roller Bearing (Part No.S-M-802048)

Yukon Gear – Cross Pin Bolt (Part No.33067)

FAG US – Cone (Part No.KM86649)

Yukon Gear – Ring Gear Bolt (Part No.33046)

Motive Gear – Ring Gear Bolt (Part No.14066913)

Yukon Gear – 7.5 & 7.625 Standard Open Pinion Gear Thrust Washer (Part No.33390)

Pro-King – Differential Pinion Gear Washer (Part No.742G216)

National – Multi-Purpose Bearing (Part No.A-5)

Yukon Gear – Redi Sleeve For GM 8.5", 9.5" & 8.2" Bop Yokes (Part No.30229)

National – Shaft Repair Sleeve (Part No.99199)

Pro-King – Differential Cross Shaft (Part No.742G673)

FAG US – Shaft Seal (Part No.SS2421)

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

USA Standard Gear – Standard Spider Gear Set For GM 8.5", 30 Spline (Part No.39027)

Yukon Gear – Spider Gear Set For GM 7.5" & 7.625" Dura Grip Posi, 26 Spline (Part No.16116)

Pro-King – Shim Kit (Part No.741A200)

Yukon Gear – Standard Open Spider Gear Kit For 8.5" GM With 28 Spline Axles (Part No.16054)

Motive Gear – Differential Carrier Shim Kit (Part No.1101)

Pro-King – Differential Cover Gasket (Part No.742G303A)

National – Multi-Purpose Bearing (Part No.A-5)

FAG US – Bearing – TRB (Tapered Roller Bearing) (Part No.KT11)

FAG US – Bearing – TRB (Tapered Roller Bearing) (Part No.KT5)

National – Bearing Race (Part No.JL69310)

FAG US – Cup (Part No.LM67010)

Valvoline – DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart (Part No.822405)

Valvoline – DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart (Part No.798153)

Pro-King – Differential Ring Gear Bolt (Part No.742G935)