1981 Mercury Grand Marquis Differentials

Name: Differential Bearing Kit - Timken
Brand: Motive Gear
SKU: R9R306S
Price: 118.99 USD

Find your specific 1981 Mercury Grand Marquis original or aftermarket Differentials below. Order your parts online and have delivered to your home or pick up in-store at Advance Auto.

Essential 1981 Mercury Grand Marquis Differentials

from

$118.99

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:

BEARING KIT FORD 9″ W/3.062 CARRIER BRGS & STD PINION SUPPORT

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$299.99

Product Features:

Spider gear kit
Fits Ford 8.8″ 31 spline Trac Loc positraction
Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.

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$59.99

Product Features:

Super carrier shim kit for Ford 8.8″, GM 12 bolt passenger car and truck, GM 8.0″, 8.6″, 8.6″ IRS and 1963-1979 Corvette
Interlocking design makes installation much easier

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$789.99

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 Trac Loc uses a nodular case, billet side hat, and forged internals for higher strength than stock Trac-Locs. The units use composite clutches for high performance and long life. All units are Rebuildable. Yukon offers a one year warranty against manufacturing defects.

Product Features:

Fits Ford 9″ with 31 spline axles
Trac Loc positraction
Clutch style positraction
Street design
Internal gears are manufactured using forged 4320 steel and cut to provide stronger teeth
Fully rebuildable
Assembled in the USA

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$28.99

TAPERED ROLLER BEARI

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$99.99

DiffrlCover

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$153.99

M802048 set-up bearing (one bearing). No return.

Product Features:

Set up bearing
Fits M802048 pinion bearing
Easily slips on and off pinion journal to allow for easier pinion depth adjustment

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$463.99

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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$8.99

Replacement outer oil slinger for Ford 7.5″, 8.8″, 9″, 10.25″, Nissan Titan rear, Dana 44 Rubicon & 44 JK non-Rubicon.

Product Features:

Outer oil slinger for Ford 10.25″, 7.5″, 8.8″ and 9″ also Jeep JK and Nissan Titan rear

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$315.99

Yukon positraction internals for 8″ and 9″ Ford with 28 spline axles, in a 4-pinion design. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. This kit does not include clutches. All components come with a one year warranty against manufacturing defects.

Product Features:

Spider gear kit
Fits Ford 9″ with Trac Loc positraction with 28 spline axles
Includes two side gears, four pinion gears, cross pin shaft, roll pin and spider gear thrust washers.

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$209.99

Yukon forged yoke for Ford 9″ with 28 spline pinion and a 1350 U/joint size (stronger than billet). 3.625″ snap ring span, 1.188″ cap diameter. Outside snap ring. All Yukon yokes come with a one year warranty against manufacturing defects.

Product Features:

Fits Ford 9″
28 spline
1350 u-joint size
3.625″ snap ring span
1.188″ cap diameter
Outside snap ring design
U-bolt style

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$10.99

Product Features:

Trac Loc spring plate for Ford 8″ and 9″

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$35.49

Product Features:

MINI INSTALL KIT FORD 7.5

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$14.99

Valvoline Multi-Vehicle Transfer Case Fluid is a full synthetic product meeting the performance needs for transfer cases recommending Ford XL-12 and GM Auto Trak II specifications or ATF fluids (DEX/MERC, ATF +4, etc).

Product Features:

Recommended for use in most Ford, GM and FCA (Dodge, Jeep) models
Formulated to help prevent gear wear and protect against rust and corrosion
Formulated to deliver enhanced protection against deposits
Helps provide better protection during extreme operating conditions

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$262.99

This differential disc kit is a low-cost, time-saving repair solution for the posi-traction function. They are designed to match the fit and performance of the original disc on specific vehicle years, makes and models.

Product Features:

Direct replacement – this differential clutch kit provides the necessary components for repairing the original equipment on specific vehicles.
Quality materials – all components are built for reliable longevity and performance.
Smart solution – provides original equipment fit and function for a competitive price compared to original manufacturer
Trustworthy quality – backed by team of designers and engineers in the United States

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$45.99

All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of our products undergo rigid quality control processes to insure proper fit, performance and longevity. Motive Gear products can be found in the winners circle at NHRA, IHRA, NMRA, NMCA, SODA, SCORE, BITD, Ultra-4 and NASCAR events because we offer unmatched selection and quality demanded by racers and their crew chiefs – the same quality and selection demanded by DIY customers and top mechanics. With four warehouses strategically located across North America, most Motive Gear orders arrive within 2-4 days. Win with Motive Gear!

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$284.99

Yukon Pinion installation kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings & races can be reused. This kit uses Timken bearings and races along with a high quality pinion seal and small parts. Included in this kit are the pinion bearings and races, pilot bearing (if applicable), crush sleeve (if applicable), complete pinion shim kit, pinion nut, thread locker, and marking compound with brush. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your pinion gear.

Product Features:

Fits Ford 9″ with Daytona pinion support
Included are pinion bearings and races, pinion seal, pinion nut, crush sleeve, complete pinion shim kit, and marking compound with brush.

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$993.99

The Yukon Grizzly Locker is the ultimate in locking differentials for street, off-road, & drag racing. Grizzly Lockers provide 100% power to both tires, while still allowing for disengagement while negotiating turns. The Yukon Grizzly locker is a mechanical locking differential. It features a forged case and 8620 internals for maximum strength. It’s patented design reduces common locker failures. All units assembled in the USA! This unit has been machined for use in dropouts with a load-bolt. All Grizzly Lockers are backed by the best warranty in the business! Yukon covers the replacement unit and covers any collaterally damaged parts and associated labor, up to $2,000! This locker also fits 9.5″ & 10″ dropouts.

Product Features:

Fits Ford 9″ with 35 spline axles and loadbolt housing
Patented internal design reduces common locker failures
8620 internals for added strength
Assembled in the USA

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$27.99

8.25″ IFS, 8.5″, 12P, 7.5″ F, 8.8″ F, 8.25″ Chrysler pinion shim kit.

Product Features:

Pinion depth shims for GM 8.25″ IFS, 8.5″, 8.6″, 12 bolt passenger car, Ford 7.5″ and 8.8″, Chrysler 8.25″

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$5.99

Ford 7.5″ & 8.8″ ring gear bolt, standard Open & TracLoc. 7/16″ x 20.

Product Features:

Ring gear bolt for Ford 7.5″ and 8.8″
7/16″ x 20

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$5.99

This differential pinion shaft lock bolt is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:

Direct replacement – this differential pinion shaft lock bolt matches the fit and function of the factory part on specified years, makes and models.
Ideal solution – this bolt is a reliable replacement for an original part that is missing or has failed due to fatigue
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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$30.99

Standard open and TracLoc cross pin block for 9″ Ford.

Product Features:

Cross pin block
Fits Ford 9″

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$249.99

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.

Product Features:

Fits Ford 9″ with LM104911 carrier races and Daytona pinion support
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 eliminator, pilot bearing, thread locker, marking compound with brush and gasket.

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$109.99

Yukon Carrier installation kits are great, low cost kit for carrier changes such as Positraction or locker upgrades. Carrier installation kit for GM 8.2″ & 8.5″ differential. This kit contains carrier bearings, races and shims.

Product Features:

Fits GM 7.5″, 7.625″ 8.2″ and 8.5″
Includes carrier bearings and races and “super” carrier shim kit

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$38.99

8.6″ GM 99-08 PINION Bearing & SEAL KIT .

Product Features:

Pilot bearing
Fits Ford 9″
0.656″ thick

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$175.99

9″ large solid pinion preload spacer & shim kit for 35 spline pinion.

Product Features:

Crush sleeve eliminator kit for Ford 9″ with 35 spline pinion

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$10.99

Standard Open & TracLoc pinion gear thrust washer for 7.5″ Ford.

Product Features:

Pinion gear thrust washer
Fits Ford 7.5″

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$219.99

Product Features:

FRD 10BL 8.8 R/P 4.56 MG

Popular 1981 Mercury Grand Marquis Differentials Categories

Differential Oil

Rear Differential Cover Gaskets

Differential Open Unit and Components

Differential Covers

Differential Pinion Shaft Lock Bolts

Differential Bearings

Differential Axle Shafts

Differential Pinion Pilot Bearings

Differential Cover Bolts

Differential Carriers

Differential Bearing Kits

Front Differential Pinion Bearings

Differential Spider Gear Kits

Differential Rebuild Kits

Differential Carrier Shim Kits

Differential Pinion Seals

Differential Disc Kits

Differential Clutch Packs

Differential Ring and Pinions

Differential End Yokes

Differential Spools

Differential Carrier Bearings

Differential Lock Springs

Rear Housing Cover Gaskets

Differential Pinion Bearing Kits

Complete Differentials

Differential Ring Gear Bolts

Bearing Race Drivers

Differential Carrier Bearing Shims

Differential Crush Sleeves

Differential Side Bearing Spacers

Differential Pinion Shims

Differential Pinion Shaft Nuts

Differential Gear Install Kits

Differential Cross Pins

Differential Side Gear Thrust Washers

Differential Pinion Gear Thrust Washers

Differential Drive Pinion Oil Deflectors

Limited Slip Differential Assemblies

Differential Spider and Pinion Gear Kits

Differential Pinion Bearing Spacers

Maybe you’re in the middle of a full rebuild of that 1981 Mercury Grand Marquis. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 190 different Differentials in our inventory ranging from $0.99 to $1,566.99. That means you can find the exact parts or products you need to keep that 1981 Mercury Grand Marquis running smoothly.

Differentials are only as good as their brand. We stock 13 different brands to make sure you have plenty of trusted parts to choose from for your 1981 Mercury Grand Marquis. FELPRO, Yukon Gear, and Dorman 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 Mercury Grand Marquis, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 875 reviews in this category, some of the top rated parts include Differential Master Bearing Kit – Timken with 4.0 stars and Wheel Bearing and Seal Kit with 3.8 stars.

So if you’re in the market for aftermarket Differentials to keep your 1981 Mercury Grand Marquis 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 Mercury Grand Marquis Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1981 Mercury Grand Marquis 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 Grand Marquis the best it can be. Be sure to browse some of our top Differentials brands and parts.

Popular Powertrax Differentials

We carry Powertrax parts in our stock across Complete Differentials categories, plus more. For a 1981 Mercury Grand Marquis, our most popular Powertrax Differentials include:

from $444.99

(1)

Lock Right Locker

Complete Differentials

Top 1981 Mercury Grand Marquis Differentials from Felpro

Felpro products are another trusted brand when it comes to Differentials for your 1981 Mercury Grand Marquis. Popular Felpro parts include:

from $14.99

(121)

Differential Cover Gasket

Rear Differential Cover Gaskets

from $6.49

(13)

Differential Cover Gasket

Rear Differential Cover Gaskets

FAQs for 1981 Mercury Grand Marquis Differentials

What are the most purchased Differentials for the 1981 Mercury Grand Marquis?

Out of 190 Differentials for the 1981 Mercury Grand Marquis, the most popular in our inventory are:

from $57.99

This product is not rated

3 Qt – 80W90 Conventional Gear Oil With Posi Additive

Differential Oil

from $23.99

(7)

Bearings

Front Differential Pinion Bearings

from $5.99

(11)

Differential Shaft Lock Bolt

Differential Pinion Shaft Lock Bolts

What are the top-rated 1981 Mercury Grand Marquis Differentials?

Top-rated Differentials for your 1981 Mercury Grand Marquis based on customer reviews/ratings are:

from $137.99

(8)

Differential Master Bearing Kit – Timken

“These Timken bearings work great in my 10 second drag car.”

from $169.99

(4)

Wheel Bearing and Seal Kit

“Complete kit with for my rebuild. I was lucky to get awesome service from the salesman. Parts were very reasonable price-wise.”

from $8.49

(3)

Differential Carrier Shim Kit

“worked great”

1981 Mercury Grand Marquis Differentials

More 1981 Mercury Grand Marquis Differentials

Essential 1981 Mercury Grand Marquis Differentials

Motive Gear – Differential Bearing Kit – Timken (Part No.R9R306S)

USA Standard Gear – Standard Spider Gear Set For Ford 8.8" Trac Loc Posi, 31 Spline (Part No.39032)

Yukon Gear – Super Carrier Shim Kit For Ford 8.8", GM 12 Bolt Car & Truck, 8.6 & Vette (Part No.55002)

Yukon Gear – Trac Loc For Ford 9" Wtih 31 Spline Axles – Street Design (Part No.26010)

FAG US – TAPERED ROLLER BEARI (Part No.KT47)

Yukon Gear – DiffrlCover (Part No.32364)

Yukon Gear – Set Up Bearing (Part No.56045)

Powertrax – Grip LS Traction System (Part No.LS108831)

Yukon Gear – Outer Oil Slinger For Ford 7.5", 8.8", 9", 10.25" (Part No.33022)

Yukon Gear – Positraction Internals For 8" And 9" Ford With 28 Spline Axles, In A 4-Pinion Design (Part No.16023)

Yukon Gear – Forged Yoke For Ford 9" With 28 Spline Pinion And A 1350 U/Joint Size (Part No.41064)

Yukon Gear – Trac Loc Spring Plate For Ford 9" & 8" (Part No.33517)

Motive Gear – Differential Gear Install Kit (Part No.F7.5IK)

Valvoline – Transfer Case Fluid, 1 Quart (Part No.855459)

Dorman – Differential Clutch Kit (Part No.697-780)

Motive Gear – Differential Pinion Solid Spacer Kit w/Shims (Part No.SS9)

Yukon Gear – Pinion Install Kit For Ford Daytona 9" Differential (Part No.13045)

Yukon Gear – Grizzly Locker, Ford 9" With 35 Splines, For Use With Load Bolt Dropout (Part No.28012)

Yukon Gear – Pinion Depth Shims For GM 8.25" IFS, 8.5", 12 Bolt Car, Ford 8.8" & Chrysler 8.25" (Part No.55009)

Yukon Gear – Ford 7.5" & 8.8" Ring Gear Bolt, Standard Open & Tracloc (Part No.33053)

Dorman – Help – Differential Shaft Lock Bolt (Part No.81048)

Yukon Gear – Standard Open And Tracloc Cross Pin Block For 9" Ford (Part No.33336)

USA Standard Gear – Master Overhaul Kit for the Ford 9" LM603011 Differential with Daytona Pinion Support (Part No.37039)

Yukon Gear – 8.5" & 8.2" GM Carrier Installation Kit (Part No.57008)

Yukon Gear – Pilot Bearing For Ford 9" (Part No.18042)

Yukon Gear – Crush Sleeve Eliminator Kit For Ford 9" For 35 Spline Pinion (Part No.55042)

Yukon Gear – Standard Open & Tracloc Pinion Gear And Thrust Washer For 7.5" Ford (Part No.33296)

Motive Gear – Differential Ring and Pinion (Part No.F8.8-456)

Popular 1981 Mercury Grand Marquis Differentials Categories