1973 Buick Estate Wagon Differentials

Essential 1973 Buick Estate Wagon Differentials

Yukon Gear – 8.2" & 8.5" Rear Cover Gasket (Part No.23020)

8.2" & 8.5" Rear Cover Gasket

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$10.99
8.2″ & 8.5″ rear cover gasket.

Product Features:
  • Cover gasket
  • Fits GM 8.2″, 8.5″ and 8.6″
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ARP Auto Racing – For Use With General Motors, 0.800" Head L, 3/8" – 24 Thread Size, Chrome Moly (Part No.230-3001)

For Use With General Motors, 0.800"  Head L, 3/8" - 24 Thread Size, Chrome Moly

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$40.49
The tremendous shock loads generated at launch by most any drag racing vehicle equipped with todays sticky tire compounds or the acceleration and deceleration of oval track cars put considerable strain on the ring gear. For this reason, the fastener experts at ARP have developed the Pro Series ring gear bolts. They are forged from premium grade 8740 chrome moly steel and are heat treated to a nominal rating of 200,000 PSI tensile strength. Specially hardened, precision ground washers are included where required. Available to fit most any ring gear setup ranging from popular 9 Inch Ford GM 10 and 12 bolt rear ends to the beefy strange differentials found in top fuel and funny car applications.

Product Features:
  • Forged From Premium Grade 8740 Chrome Moly Steel
  • Heat Treated
  • Nominally Rated At 200,000 Psi Tensile Strength
  • Specially Hardened, Precision Ground Washers
  • 3/8″-24 RH Thread Size
  • 0.8″ Underhead Length
  • 200,000 PSI
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Motive Gear – Differential Crush Sleeve (Part No.1234726)

Differential Crush Sleeve

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$4.29
Motive Gear offers some of the toughest drive train components on the market today. If you are looking for the largest line of performance ring and pinion gear options available with gear sets in a wide range of ratios for nearly every application, both o
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Dorman – Help – Pinion Crush Sleeves (Part No.81057)

Pinion Crush Sleeves

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$5.29
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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National – Bearings (Part No.M88010)

Bearings

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$10.49
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
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Yukon Gear – Mini Spool For GM 8.5" With 28 Spline Axles (Part No.32232)

Mini Spool For GM 8.5" With 28 Spline Axles

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$165.99
10 bolt Mini Spool for 8.5″ GM with 28 spline axles. Mini spools are a low-cost traction option for vehicles looking for full-time lockup. The mini spool installs into a standard open carrier and give 100% power to both tires at all times. These units are not recommended for street-driven vehicles. We recommend full spools for vehicles with large tires or high horsepower. These units come with a one year warranty against manufacturing defects.

Product Features:
  • Fits GM 8.5″ with 28 spline axles
  • Installs into a standard open carrier case
  • Provides 100% traction to both wheels at all times
  • Not recommended for street driven vehicles
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Richmond Gear – MiniSpool (Part No.78-7528-1)

MiniSpool

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$151.99
MiniSpool

Felpro – Differential Cover Gasket (Part No.RDS 55029)

Differential Cover Gasket

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$7.49
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Unsurpassed quality you can trust
  • Validated for fit, form and function
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
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Felpro – Differential Cover Gasket (Part No.RDS 55028-1)

Differential Cover Gasket

from

$9.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Unsurpassed quality you can trust
  • Validated for fit, form and function
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
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Pro-King – Differential Pinion Shim Kit (Part No.742G202)

Differential Pinion Shim Kit

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$5.99
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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Motive Gear – Differential Pinion Shim Kit (Part No.1104)

Differential Pinion Shim Kit

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$12.99


Product Features:
  • KIT SHIM
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Yukon Gear – Standard Open Spider Gear Kit For Early 7.5" GM With 26 Spline Axles And Large Windows (Part No.16048)

Standard Open Spider Gear Kit For Early 7.5" GM With 26 Spline Axles And Large Windows

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$149.99
Yukon standard open spider gear kit for early 7.5″ GM with 26 spline axles and large windows. 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 7.5″ open differential with 26 spline axles
  • Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.
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Motive Gear – Differential Carrier Gear Kit (Part No.GM7.5BI)

Differential Carrier Gear Kit

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$115.99


Product Features:
  • INTERNAL KT GM 7.5 26 SPL
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Powertrax – Lock Right Locker (Part No.1940-LR)

Lock Right Locker

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$441.99
The Powertrax Lock-Right ultra-strength alloy locker’s straight-line performance is equal to a solid spool, but automatically unlocks in turns. Best suited for extreme off-road to severe on-road use, Powertrax Lock Right lockers replace the spider gears in your open differential carrier using basic tools and without affecting your ring and pinion settings. The whole job can be done in your driveway in a couple of hours, pin included! Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!The Powertrax® Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Powertrax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.
  • Powertrax® lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.
  • Powertrax® offers three levels of GRIP locking differentials, ranging from the clutch-type GRIP LS with a forged steel case, the gear-driven GRIP PRO and finally the GRIP LOK for extreme traction.
  • Powertrax® = Extreme Traction Systems!
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    Powertrax – Grip LS Traction System (Part No.LS231230)

    Grip LS Traction System

    from

    $480.99
    For vehicles that are driven daily, the Powertrax 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 Powertrax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax 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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    Richmond Gear – Differential Cross Shaft (Part No.CSPGM12)

    Differential Cross Shaft

    from

    $27.49
    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!

    Product Features:
    • For over 80-years, the Richmond Double-Diamond logo has represented some of the highest quality gears in the racing industry. Winners Run Richmond!
    • The superior quality of Richmond gearsets is a result of outstanding design, world class manufacturing and an extensive testing process that is performed on all products.
    • Richmond performance gearsets have been winners for decades at: NHRA, NMRA, NMCA, Daytona 500, WISSOTA and U.S. Nationals.
    • Richmond Gear is a leading manufacturer of high performance ring and pinion gearsets and drivetrain components, backed by a two year warranty.
    • Engineered to perform faster and be more reliable, Richmond performance drivetrain products are the result of a continuous research and development program combined with state-of-the-art manufacturing capabilities.
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    Richmond Gear – Differential Cross Shaft (Part No.80-0272-1)

    Differential Cross Shaft

    from

    $66.99
    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!

    Product Features:
    • For over 80-years, the Richmond Double-Diamond logo has represented some of the highest quality gears in the racing industry. Winners Run Richmond!
    • The superior quality of Richmond gearsets is a result of outstanding design, world class manufacturing and an extensive testing process that is performed on all products.
    • Richmond performance gearsets have been winners for decades at: NHRA, NMRA, NMCA, Daytona 500, WISSOTA and U.S. Nationals.
    • Richmond Gear is a leading manufacturer of high performance ring and pinion gearsets and drivetrain components, backed by a two year warranty.
    • Engineered to perform faster and be more reliable, Richmond performance drivetrain products are the result of a continuous research and development program combined with state-of-the-art manufacturing capabilities.
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    Yukon Gear – Dura Grip Positraction For GM 7.625" With 28 Spline Axles, 3.23 & Up (Part No.26018)

    Dura Grip Positraction For GM 7.625" With 28 Spline Axles, 3.23 & Up

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    $829.99
    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.

    Product Features:
    • Fits GM 7.625″ with 28 spline axles
    • 3.23 ratio and up only
    • 4-spring, clutch style positraction
    • Internal gears are manufactured using forged 4320 steel and cut to provide stronger teeth
    • Fully rebuildable
    • Assembled in the USA
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    Yukon Gear – Dura Grip Positraction For GM 8.5" & 8.6" With 30 Spline Axles (Part No.26016)

    Dura Grip Positraction For GM 8.5" & 8.6" With 30 Spline Axles

    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 unit has larger bearing journals for added strength & uses heavy-duty carrier bearings & races.

    Product Features:
    • Fits GM 8.5″ and 8.6″ with 30 spline axles
    • 2.73 ratio and up only
    • 4-spring, clutch style positraction
    • Internal gears are manufactured using forged 4320 steel and cut to provide stronger teeth
    • Fully rebuildable
    • Assembled in the USA
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    Richmond Gear – RngPnn (Part No.49-0041-1)

    RngPnn

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    $342.99
    RngPnn

    Motive Gear – Differential Bearing Kit – Koyo (Part No.R10RE)

    Differential Bearing Kit - Koyo

    from

    $104.99
    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
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    Motive Gear – Differential Master Bearing Kit – Koyo (Part No.R10RMK)

    Differential Master Bearing Kit - Koyo

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    $156.99


    Product Features:
    • KIT BRG&SL GM 8.5″ 10 BLT MSTR NON IFS FRONT / REAR
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    USA Standard Gear – Bearing Kit For GM 8.5" Rear (Part No.58011)

    Bearing Kit For GM 8.5" Rear

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    $136.99
    This kit uses Koyo bearings and races along with all high quality small parts. kit includes carrier bearings and races, pinion bearings and races, pinion seal, crush sleeve (if applicable), oil baffles and slingers (if applicable), marking compound and brush. USA Standard Gear does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your ring & pinion set.

    Product Features:
    • Fits GM 8.5″ rear
    • Uses Koyo bearings and races
    • Included are carrier bearings and races, pinion bearings and races, pinion seal, pinion nut, crush sleeve, marking compound and brush.
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    Driveworks – Taper Bearing Cone (Part No.S-M-86649)

    Taper Bearing Cone

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    $8.79
    Value-priced bearing meets all cataloged application requirements.

    Product Features:
    • Brand may vary by location
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    National – Bearings (Part No.M88048)

    Bearings

    from

    $15.99
    National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

    Product Features:
    • Premium bearing design matches OEM specifications
    • Precision manufactured using premium-grade steel for outstanding durability and performance
    • Crowned raceways and rollers to ensure even load distribution for maximum life
    • Industry leading coverage
    • Professional technicians know they can depend on National
    See More

    Yukon Gear – Redline Synthetic "Shock Proof" Oil – 4 Quarts (Part No.15004)

    Redline Synthetic "Shock Proof" Oil - 4 Quarts

    from

    $137.99
    Redline Synthetic “Shock Proof” Oil. 4 Quarts.

    Product Features:
    • Includes four quarts of Redline Shockproof oil
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    Yukon Gear – Redline Synthetic "Shock Proof" Oil – 3 Quarts (Part No.15000)

    Redline Synthetic "Shock Proof" Oil - 3 Quarts

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    $99.99
    Redline Synthetic “Shock Proof” Oil. 3 Quarts.

    Product Features:
    • Includes three quarts of Redline Shockproof oil
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    Valvoline – MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Quart (Part No.VV324)

    MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Quart

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    $12.79
    Product Features:
    • High-performance seal conditioners maintain and preserve the elasticity of seals to help prevent leaks
    • Long-life friction modifiers and premium base oils help improve smooth shifting, eliminate slippage and shudder, prevent clutch wear and improve drivability longer than conventional fluids
    • Enhanced cleaning additives help reduce varnish formation and keep the transmission running properly longer
    • Engineered with a unique blend of viscosity modifiers and base oils to provide better oil flow at low temperatures and greater film protection at higher temperatures
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    1973 Buick Estate Wagon Differentials

    Maybe you’re in the middle of a full rebuild of that 1973 Buick Estate Wagon. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 63 different Differentials in our inventory ranging from $2.49 to $551.99. That means you can find the exact parts or products you need to keep that 1973 Buick Estate Wagon running smoothly.

    Differentials are only as good as their brand. We stock 8 different brands to make sure you have plenty of trusted parts to choose from for your 1973 Buick Estate Wagon. National, Motive Gear, and Yukon Gear are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

    We know you’ll find the perfect Differentials for your 1973 Buick Estate Wagon, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 315 reviews in this category, some of the top rated parts include Differential Cover Gasket with 4.4 stars and Differential Master Bearing Kit – Koyo with 3.8 stars.

    So if you’re in the market for aftermarket Differentials to keep your 1973 Buick Estate Wagon rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

    Differentials Brands To Make Your 1973 Buick Estate Wagon Last

    Simple repair, complete replacement, or a full rebuild. No matter the job, your 1973 Buick Estate Wagon demands trusted brand parts and products to keep it running. Many trusted brands of Differentials make up Advance Auto Parts’ inventory, and all are ready to help make your Estate Wagon the best it can be. Be sure to browse some of our top Differentials brands and parts.

    Popular Mr. Gasket Differentials

    We carry Mr. Gasket parts in our stock across Rear Differential Cover Gaskets categories, plus more. For a 1973 Buick Estate Wagon, our most popular Mr. Gasket Differentials include:
    Differential Gasket
    from $18.09
    (1)
    Differential Gasket
    Rear Differential Cover Gaskets

    Top 1973 Buick Estate Wagon Differentials from Richmond Gear

    Richmond Gear products are another trusted brand when it comes to Differentials for your 1973 Buick Estate Wagon. Popular Richmond Gear parts include:
    Differential Ring And Pinion
    from $342.99
    (23)
    Differential Ring And Pinion
    Differential Ring and Pinions

    FAQs for 1973 Buick Estate Wagon Differentials

    What are the most purchased Differentials for the 1973 Buick Estate Wagon?

    Out of 63 Differentials for the 1973 Buick Estate Wagon, the most popular in our inventory are:
    3 Qt - Penzoil 80W90 Conventional Gear Oil
    from $44.99
    This product is not rated
    3 Qt – Penzoil 80W90 Conventional Gear Oil
    Differential Oil
    Ring Gear Bolt
    from $2.49
    This product is not rated
    Ring Gear Bolt
    Differential Ring Gear Bolts
    Bearings
    from $15.99
    (9)
    Bearings
    Front Differential Pinion Bearings

    What are the top-rated 1973 Buick Estate Wagon Differentials?

    Top-rated Differentials for your 1973 Buick Estate Wagon based on customer reviews/ratings are:
    Differential Cover Gasket
    from $7.49
    (7)
    Differential Cover Gasket
    “good”
    Differential Master Bearing Kit - Koyo
    from $156.99
    (5)
    Differential Master Bearing Kit – Koyo
    “was delivered as promised and on time”
    Bearings
    from $10.49
    (4)
    Bearings
    “Goes with M88010 bearing cup. Application was the pinion bearing race for a Ford 9 Inch on a 1957 Ford F-100.”