1981 Buick Electra Differentials

Essential 1981 Buick Electra Differentials

Dorman – Rear Axle Shaft, Left or Right (Part No.630-118)

Rear Axle Shaft, Left or Right

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$189.99
Axle shaft damaged or bearings worn out? This axle shaft directly replaces the original equipment on certain vehicles, complete with all necessary application-specific installation components.

Product Features:
  • Direct replacement – this axle shaft replaces the original equipment on specific vehicle years, makes and models
  • Complete kit – each shaft includes critical installation hardware and components needed for specific vehicle applications
  • Durable construction – designed to rigorous standards and tested to ensure performance
  • Trustworthy solution – backed by team of engineers and quality control specialists in the United States
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Yukon Gear – Standard Open Cross Pin (0.795" Diameter) For 8.5" GM – Fits Some Eaton Positractions (Part No.33401)

Standard Open Cross Pin (0.795" Diameter) For 8.5" GM - Fits Some Eaton Positractions

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$47.99
Standard open cross pin (0.795″ diameter) for 8.5″ GM. fits some Eaton positractions.

Product Features:
  • Cross pin shaft for GM 8.5″ and 8.6″
  • Fits standard open differentials only
  • 0.795″ diameter
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Yukon Gear – Ring Gear Bolt (Part No.33049)

Ring Gear Bolt

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$6.99
Ring gear bolt for GM 7.5″, 7.6″, 7.6″ IRS, 8.0″, 8.25″ IFS, 8.5″, 8.6″ & 8.6″ IRS. 7/16″ x 20.

Product Features:
  • Ring gear bolt for GM 7.5″, 7.625″, 7.6″ IRS, 8.0″, 8.25″ IFS, 8.5″, 8.6″ and 8.6″ IRS
  • 7/16″ x 20
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Powertrax – Grip LS Traction System (Part No.LS201030)

Grip LS Traction System

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$503.99
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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Mr. Gasket – Differential Cover Kit (Part No.9896)

Differential Cover Kit

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$61.99
Made from heavy gauge steel, these chrome plated rear end covers are complete with bolts and gaskets.

Product Features:
  • Heavy gauge steel
  • Chrome plated
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Yukon Gear – Bearing Race Driver (Part No.56016)

Bearing Race Driver

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$188.99
Bearing race driver. No return.

Product Features:
  • Bearing race driver
  • Fits HM89210 race
  • All steel construction
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Yukon Gear – Posi Spring Kit For GM 7.5", With Preload Plates (Part No.33206)

Posi Spring Kit For GM 7.5", With Preload Plates

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$166.99
Product Features:
  • Positraction spring kit
  • Fits GM 7.5″ and 7.625″ Dura Grip
  • Includes preload plates
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Pro-King – Differential Cover Plug (Part No.742G484)

Differential Cover Plug

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$6.59
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.
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Yukon Gear – Pinion Nut Washer (Part No.33167)

Pinion Nut Washer

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$14.99
Pinion nut washer for GM 7.2″ IFS, 7.5″, 7.6″, 7.6″ IFS, 8.5″, 8.6″ & 9.5″.

Product Features:
  • Pinion nut washer for GM 7.2″ IFS, 7.5″, 7.625″, 7.6″ IFS, 8.5″, 8.6″ and 9.5″.
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Yukon Gear – 8.5" & 8.6" GM Standard Open Pinion Gear Thrust Washer – Also Fits 8.5" Eaton With 0.795" Cross Pin (Part No.33385)

8.5" & 8.6" GM Standard Open Pinion Gear Thrust Washer - Also Fits 8.5" Eaton With 0.795" Cross Pin

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$10.99
8.5″ & 8.6″ GM standard Open pinion gear Thrust washer. also fits 8.5″ Eaton with 0.795″ cross pin.

Product Features:
  • Pinion gear thrust washer for GM 8.5″ and 8.6″
  • Fits standard open differentials only
  • 0.795″ I.D.
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Richmond Gear – MiniSpool (Part No.78-7526-1)

MiniSpool

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$124.99
MiniSpool

Motive Gear – Performance Differential Ring and Pinion (Part No.G875410)

Performance Differential Ring and Pinion

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$222.99


Product Features:
  • GM 10BL 7.5 &7.625 R/P 4.10 MGP 10 3/8 X 18 LH THRED BLTS, PD=1.438
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Yukon Gear – Standard Open Side Gear Thrust Washer For 8.5" GM (Part No.33304)

Standard Open Side Gear Thrust Washer For 8.5" GM

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$15.99
Standard open side gear thrust washer for 8.5″ GM.

Product Features:
  • Side gear thrust washer
  • Fits GM 8.5″
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Yukon Gear – Pinion Nut (Part No.33152)

Pinion Nut

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$9.99
Pinion nut for GM 7.2″ IFS, 7.5″, 7.6″, 7.6″ IFS, 8.0″, 8.25″, 8.5″, 8.6″, 9.25″ IFS, 9.5″ & Oldsmobile Dropouts. 1 1/4″ socket, 7/8″ x 14 thread.

Product Features:
  • Pinion nut for GM 7.2″, 7.5″, 7.625″, 8.0″, 8.25″ IFS, 8.5″, 8.6″, 9.25″ IFS and 9.5″
  • 7/8″ x 14 thread
  • 1 1/4″ socket
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Yukon Gear – Differential Cover B (Part No.33572)

Differential Cover B

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$7.99
Differential Cover B

USA Standard Gear – Spartan Locker For GM 8.5" With 28 Spline Axles, Includes Heavy-Duty Cross Pin Shaft (Part No.17040)

Spartan Locker For GM 8.5" With 28 Spline Axles, Includes Heavy-Duty Cross Pin Shaft

from

$618.99
The Spartan Locker, by USA Standard Gear, provides reliable traction at a low cost. Give your vehicle great traction and save some cash. Choose a Spartan Locker for better traction. The Spartan locker by USA standard gear is a mechanical locker that replaces the spiders in a standard case. The Spartan locker’s design does not use the thrust washers and has a revolutionary spring and pin design that makes installation a snap! The couplers and drivers are made from 9310 steel, for added strength. Each Spartan locker carries a one year warranty against defect.

Product Features:
  • Fits GM 18.5″ with 28 spline axles
  • Made from 9310 steel for added strength
  • Replaces the spiders in a standard carrier case
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Yukon Gear – 3 Qt – Penzoil 80W90 Conventional Gear Oil (Part No.15002)

3 Qt - Penzoil 80W90 Conventional Gear Oil

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$44.99
3 Qt. Penzoil 80W90 conventional gear Oil.

Product Features:
  • Includes three quarts of conventional oil
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Motive Gear – Differential Gear Install Kit (Part No.GM7.5IK)

Differential Gear Install Kit

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$49.99


Product Features:
  • MINI INSTALL KIT GM 7.5
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Pro-King – Differential Cross Shaft (Part No.742G673)

Differential Cross Shaft

from

$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.
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Motive Gear – Differential Pinion Seal (Part No.2043)

Differential Pinion Seal

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$3.49
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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Yukon Gear – GM 8.2" Crush Sleeve (Part No.33103)

GM 8.2" Crush Sleeve

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$16.99
GM 8.2″ crush sleeve w/OEM ring & pinion (NOT AFTERMARKET ring & pinion). 2.470″ long.

Product Features:
  • Crush sleeve for GM 8.2″ with OEM ring and pinion set
  • 2.470″ tall
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Yukon Gear – Positraction Shim Kit (18 Shims) For GM 8.2", GM 8.5", 12T, 12P, Ford 8.8" & Cast Iron ‘Vette (Part No.16042)

Positraction Shim Kit (18 Shims) For GM 8.2", GM 8.5", 12T, 12P, Ford 8.8" & Cast Iron 'Vette

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$41.99
Product Features:
  • Shim kit
  • Fits Ford 8.8″, 1963-1979 Corvette, GM 12 bolt passenger car and truck, 8.2″, 8.5″ and 8.6″ Dura Grip positraction
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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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National – Bearings (Part No.25584)

Bearings

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$29.49
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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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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Motive Gear – Differential Bearing Kit – Koyo (Part No.R8.5PR)

Differential Bearing Kit - Koyo

from

$94.49
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:
  • BRG & SEAL KIT-10 BOLT “P” AXLE
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Yukon Gear – Pinion Depth Shims For GM 7.5", 7.75", 8.2" & 12 Bolt Truck (Part No.55008)

Pinion Depth Shims For GM 7.5", 7.75", 8.2" & 12 Bolt Truck

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$21.99
Product Features:
  • Pinion depth shims for GM 7.5″, 7.625″, 7.6 IFS, 7.6 IRS, 7.75″, 8.2″, 1955-1964 passenger car and 12 bolt car and truck
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Yukon Gear – Super Carrier Shim Kit For Ford 7.5", GM 7.5", 8.2" & 8.5" (Part No.55001)

Super Carrier Shim Kit For Ford 7.5", GM 7.5", 8.2" & 8.5"

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$52.99
Product Features:
  • Super carrier shim kit for Ford 7.5″, GM 7.5″, 7.625″, 7.6″ IFS, 7.6″ IRS, 7.75″, 8.2″, 8.2″ Buick, Oldsmobile and Pontiac and GM 8.5″ front and rear
  • Interlocking design makes installation much easier
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1981 Buick Electra Differentials

Maybe you’re in the middle of a full rebuild of that 1981 Buick Electra. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 263 different Differentials in our inventory ranging from $1.99 to $1,014.99. That means you can find the exact parts or products you need to keep that 1981 Buick Electra running smoothly.

Differentials are only as good as their brand. We stock 11 different brands to make sure you have plenty of trusted parts to choose from for your 1981 Buick Electra. Felpro, National, 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 1981 Buick Electra, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 2,184 reviews in this category, some of the top rated parts include Differential Master Bearing Kit – Koyo with 3.8 stars and Differential Ring and Pinion with 4.5 stars.

So if you’re in the market for aftermarket Differentials to keep your 1981 Buick Electra 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 1981 Buick Electra Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1981 Buick Electra 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 Electra 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 1981 Buick Electra, our most popular Mr. Gasket Differentials include:
Differential Gasket
from $15.99
(1)
Differential Gasket
Rear Differential Cover Gaskets

Top 1981 Buick Electra Differentials from Felpro

Felpro products are another trusted brand when it comes to Differentials for your 1981 Buick Electra. Popular Felpro parts include:
Differential Cover Gasket
from $9.99
(195)
Differential Cover Gasket
Rear Differential Cover Gaskets
DIFFERENTIAL GASKET
from $7.99
(45)
DIFFERENTIAL GASKET
Rear Differential Cover Gaskets
Differential Cover Gasket
from $7.49
(6)
Differential Cover Gasket
Rear Differential Cover Gaskets

FAQs for 1981 Buick Electra Differentials

What are the most purchased Differentials for the 1981 Buick Electra?

Out of 263 Differentials for the 1981 Buick Electra, the most popular in our inventory are:
Bearings
from $16.99
(25)
Bearings
Differential Bearings
Differential Shaft Lock Bolt
from $5.99
(11)
Differential Shaft Lock Bolt
Differential Pinion Shaft Lock Bolts
3 Qt - Penzoil 80W90 Conventional Gear Oil
from $44.99
This product is not rated
3 Qt – Penzoil 80W90 Conventional Gear Oil
Differential Oil

What are the top-rated 1981 Buick Electra Differentials?

Top-rated Differentials for your 1981 Buick Electra based on customer reviews/ratings are:
Differential Master Bearing Kit - Koyo
from $156.99
(5)
Differential Master Bearing Kit – Koyo
“was delivered as promised and on time”
Differential Ring and Pinion
from $241.99
(4)
Differential Ring and Pinion
“Perfect match and easy install”
Multi Purpose Seal
from $15.99
(4)
Multi Purpose Seal
“Perfect”