2008 Mercury Grand Marquis Differentials

Keep Your 2008 Mercury Grand Marquis in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 2008 Mercury Grand Marquis looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Oil, Differential Covers, and Rear Housing Cover Gaskets. 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 Dorman. For example, Motive Gear Differentials start at just $7.99 with an average 4.0 star rating. National and Dorman offer similar pricing and quality, backed by strong customer feedback. With over 1,914 reviews and a solid 4 star average, you can shop with confidence knowing other Mercury Grand Marquis owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2008 Mercury Grand Marquis Differential at Advance Auto Parts is around $300.70, with a range that starts at $1.29 and goes up to $2,064.99. With 232 options in stock from 17 trusted brands, finding the right fit is easy. Popular picks like DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart, DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart, and Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart 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 Universal Joints. At Advance Auto Parts, we’re here to help you keep your 2008 Mercury Grand Marquis in peak condition, inside and out.

Looking for the perfect Differential for your 2008 Mercury Grand Marquis? 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 Mercury Grand Marquis. Whether you’re driving a 2008 model or another popular model year like 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010, and 2011, 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 2008 Mercury Grand Marquis Differentials

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$8.99

Product Features:

Trac Loc spring for Ford 8″ and 9″

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$121.99

Yukon short yoke for Ford 9″ HD with 28 spline axles and a 1330 U/joint size. 4″ length. 3.625″ snap ring span, 1.125″ cap diameter. Outside snap ring. All Yukon yokes come with a one year warranty against manufacturing defects.

Product Features:

Fits Ford 9″
28 spline
1330 u-joint size
3.625″ snap ring span
1.125″ cap diameter
Outside snap ring design
U-bolt style

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$47.99

Side gear with hub for 9″ Ford with 31 splines.

Product Features:

Side gear with hub
Fits Ford 8″ and 9″ standard open differential and Trac Loc positraction with 31 spline axles

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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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$27.99

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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$69.99

Valvoline SAE 75W-140 Full Synthetic Gear Oil provides the ultimate gear protection in hypoid rear differentials and non-synchronized manual transmissions. Engineered to outperform, our formulation provides exceptional high and low temperature protection and excellent thermal stability, especially in demanding driving situations such as towing and off-roading. It contains an extreme pressure additive for better load carrying capacity and wear resistance, a limited slip additive for optimal clutch pack performance, and an anti-foaming agent for better lubrication and service life. It’s recommended for conventional rear axles and transmissions requiring EP gear lubes under high speed, high load, high torque and high horsepower conditions.

Product Features:

EXCEPTIONAL HIGH AND LOW TEMPERATURE PROTECTION ranging from -22F to 390F degrees
REDUCES CHATTERING AND PROTECTS GEAR TEETH from oxidation, rust, and wear
FIGHTS CORROSION AND RUST with emulsifying agents and safeguards against impurities, oxidation and thermal breakdown
MEETS THE DEMANDS OF CONVENTIONAL AND LIMITED SLIP REAR DIFFERENTIALS where API GL-5 is specified, as well as non-synchronized manual transmissions that require API GL-4
MEETS OR EXCEEDS PERFORMANCE REQUIREMENTS for Ford M2C-192A, GM 12346140, Chrysler MS-8985 and API GL-5

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$451.99

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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$6.79

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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$883.99

The Yukon carrier bearing Puller works with an impact gun to quickly and safely remove carrier bearings without damaging them. This unit comes with a handy bench top stand and works with up to one ton applications including Dana 70HD, Dana 80, 10.25″ & 10.5″ Ford, or GM & Chrysler 11.5″ differentials.

Product Features:

Carrier bearing puller
Works with an impact gun to safely and easliy remove carrrier bearings

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$399.99

Product Features:

Dura Grip positraction carrier case
Does not include spider gears
Fits Ford 8.8″ with 28 spline axles

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$12.99

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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$219.99

Bearing race driver. No return.

Product Features:

Bearing race driver
Fits M88010 race
All steel construction

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$316.99

Ford 8.8″ axle shaft, fits ’03 & up Crown Victoria without ABS. 28 spline, 34 3/8″ long. Yukon 1541H alloy axles offer a strength increase over stock while retaining a low cost. Yukon 1541H alloy front axles come with a one year warranty against manufacturing defects.

Product Features:

28 spline
5 lug
34 3/8″ long
Fits Ford 8.8″ in 2003-2006 Crown Victoria
Non-ABS

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$96.99

Product Features:

FRD 8.8″ INT. KIT 31 SPL OPEN 1987 & LATER ONLY

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$1993.99

Remanufactured Rear Axle assemblies are completely disassembled, thoroughly cleaned and reassembled using new wear parts. Units are assembled, sealed & include backing plates, axle shafts & fluid.

Product Features:

Rear axles are assembled with backing plates & axle shafts, and filled with fluid prior to shipping
Axles are fully painted & shipped securely in environmentally safe and recyclable containers that are the perfect size for returning your original core
Our complete Rear axle assemblies mean you just hang brakes, connect suspension & go! Your installation will be simple and trouble free
Remember to match axle ratio to original. For 4WD rear axle must match front axle ratio

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$1.99

Product Features:

Ford 7.5″, 8.8″ Ring Gear Bolt

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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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$11.99

Pinion gear thrust washer (0.875″ shaft) for 8.8″ Ford.

Product Features:

Pinion gear thrust washer for Ford 8.8″
0.875″ diameter cross pin shaft applications only

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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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$7.99

Pinion nut for Ford 7.5″, 8″, 8.8″, 9 3/8″ & 9″. 1 1/6″ socket, 3/4″ x 20 thread.

Product Features:

Pinion nut for Ford 7.5″, 8″ and 9″
3/4″ x 20 thread
1 1/6″ socket

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$313.99

Yukon Performance 2-1/8″ deck lightweight steel spool for 9″ Ford with 31 spline axles. Spool uses 1.785″ journal bearings. Yukon performance spools are made from the highest quality materials to ensure high strength and long life in performance applications. Spools provide 100% power to both tires at all times and are a lower cost alternative to lockers. Spools are not recommended for street driven vehicles. Yukon Performance spools come with a one year warranty against manufacturing defects.

Product Features:

Fits Ford 9″ with 31 spline axles
Lightweight design
Provides 100% traction to both wheels at all times
Not recommended for street driven vehicles

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$577.99

RngPnn

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$15.99

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$22.99

9″ FORD SPARTAN LOCKER EXTRA SHORT Cross Pin SHAFT .

Product Features:

USA Standard Gear heavy-duty cross pin shaft
Fits Ford 9″

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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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$11.99

9″ Ford gasket.

Product Features:

Dropout gasket
Fits Ford 9″

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$173.99

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 Ford 9″ with LM102910 carrier race
Uses Koyo bearings and races
Included are carrier bearings and races, pinion bearings and races, pilot bearing, pinion seal, pinion nut, crush sleeve, marking compound and brush.

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$324.99

Yukon Master Overhaul kits give you all the high quality parts you need to start & 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 carrier bearings & races with an I.D. of 1.780″ and an O.D. of 3.062″. This kit uses Timken bearings and races along with high quality seals and small parts. Included in this kit are carrier bearings and races, pinion bearings and races, pilot bearing, pinion seal, complete shim kit, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable), Thread locking compound, and marking compound with brush. Yukon’s Master Overhaul kits are the most comprehensive and complete kits on the market. They do extensive research to ensure that every kit is specially tailored to your application.

Product Features:

Fits Ford 9″ with LM603011 carrier races
Included are Timken 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.

Popular 2008 Mercury Grand Marquis Differentials Categories

Differential Oil

Differential Pinion Yokes

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 Lock Assemblies

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

Differential Ring and Pinion Kits

Limited Slip Differential Assemblies

Differential Spider and Pinion Gear Kits

Most Popular Differential Oil for 2008 Mercury Grand Marquis

Enhance your 2008 Mercury Grand Marquis with one of the 8 Differential Oil we have in stock, starting at just $10.29.

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$19.99

Mobil 1 Synthetic Gear Lubricant LS 75W-90 is a supreme, multi-purpose automotive gear lubricant that helps to provide exceptional thermal stability and resistance to high temperature oxidation, extending gear life due to minimal deposits. Helps to deliver outstanding protection against low speed/high torque wear with the capability to handle severe driving conditions while delivering smooth efficient performance. Mobil 1 Synthetic Gear Lubricant LS provides exceptional shear stability, corrosion protection, and enhanced frictional properties. Compared to conventional hypoid gear lubricants, Mobil 1 LS 75W-90 performs exceptionally over a wide range of temperatures to reduce wear at start up. Mobil 1 gear lube helps to minimize leakage and reduce contamination while providing good resistance to foaming to maintain film strength for reliable lubrication. Meets or exceeds the requirements of the following industry specifications: API GL-5.

Product Features:

Mobil 1 LS synthetic automotive gear lubricant exceeds the highest level of performance requirements of modern passenger vehicles
Helps to provide exceptional thermal stability and resistance to high temperature oxidation and extend gear life due to minimal deposits
Delivers outstanding protection against low speed/high torque wear, handling severe driving conditions with smooth, efficient performance
Compared to conventional hypoid gear lubricants, performs exceptionally over a wide range of temperatures to reduce wear at start up
Provides exceptional shear stability, corrosion protection, and enhanced frictional properties
Manufacturer Part Number: 104361

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$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

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$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

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$18.99

We’ve squeezed innovation into every ounce of Valvoline FlexFill SAE 75W-90 Full Synthetic Gear Oil, the ultimate gear protection in hypoid rear differentials and non-synchronized manual transmissions. Our unique new flexible pouch makes getting into the tightest places to lubricate gears easier than ever and with less waste. The superior detergent package-based formulation contains fully synthetic basestocks and special additives that help protect parts from rust and corrosion while providing exceptional high and low temperature protection and excellent thermal stability, especially in demanding driving situations such as towing and off-roading. It contains an extreme pressure additive for better load carrying capacity, wear resistance additives that assist in protecting gear teeth, a limited slip additive for optimal clutch pack performance, and an anti-foaming agent for better lubrication and service life. Valvoline FlexFill SAE 75W-90 Full Synthetic Gear Oil is recommended for use in axle applications requiring factory-fill or drain-and-fill levels for limited slip performance.

Product Features:

FLEXIBLE POUCH FOR EASIER USE WITH LESS WASTE in tight, hard to reach undercarriage situations.
EXCEPTIONAL HIGH AND LOW TEMPERATURE PROTECTION ranging from -30F to 300F degrees for dependable coverage year-round
REDUCES CHATTERING AND PROTECTS GEAR TEETH from oxidation, rust, and wear
MEETS THE DEMANDS OF CONVENTIONAL AND LIMITED SLIP REAR DIFFERENTIALS where API GL-5 is specified, as well as non-synchronized manual transmissions that require API GL-4 or MT-1 fluid
MEETS OR EXCEEDS PERFORMANCE REQUIREMENTS for Mack GO-H and GO-J; API GL-5 and API MT-1; MIL-PRF-2105E; and SAE J2360

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$148.99

Redline Synthetic “Shock Proof” Oil with positraction Additive. 4 Quarts.

Product Features:

Includes four quarts of Redline Shockproof oil and one 4oz bottle of Yukon positraction additive

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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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$137.99

Redline Synthetic “Shock Proof” Oil. 4 Quarts.

Product Features:

Includes four quarts of Redline Shockproof oil

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$10.29

Formulated to meet the specific requirements of Subaru vehicles equipped with conventional (non-CVT) transmissions up to model year 2005. Recommended for service-fill in all Subaru automatic transmissions where SUBARU ATF HP is specified. Fuel economy demands and more sophisticated electronic controls have made automatic transmissions not only more complex, but also unique to each vehicle manufacturer. Long gone are the days of having just a couple choices of automatic transmission fluid type. Idemitsu is the factory fill Automatic Transmission Fluid (ATF) supplier to most Asian imports. Idemitsu application-specific ATF products match the exact friction materials and performance requirements of each different vehicle model for which they are made.

Product Features:

Excellent resistance to oxidation and thermal breakdown provide long fluid life and extended protection
Precisely engineered frictional characteristics guarantee smooth shifting and outstanding anti-shudder performance
Excellent resistance to oxidation and thermal breakdown provide long fluid life and extended protection
Excellent seal compatibility and conditioning reduces risk of fluid leaks due to seal shrinkage, hardening and cracking
Advanced anti-wear technology provides maximum protection to gears and bearings
Precisely engineered frictional characteristics guarantee smooth shifting and outstanding anti-shudder performance
Provides superior cleanliness, maintaining the transmission free of sludge and varnish deposits
Excellent seal compatibility and conditioning reduces risk of fluid leaks due to seal shrinkage, hardening and cracking
Advanced anti-wear technology provides maximum protection to gears and bearings

Best-Selling 2008 Mercury Grand Marquis Differential Covers

Upgrade your Grand Marquis with one of our 5 best-selling Differential Covers.

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$99.99

Yukon outer stub axle for Chrysler 9.25″ front. This axle uses a 1485 u/joint and has 33 splines.

Product Features:

Fits Ford 8.8″
Steel

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$99.99

DiffrlCover

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$74.99

Chrome cover for 8.8″ Ford.

Product Features:

Fits Ford 8.8″
Chrome

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$42.99

Chrome cover for 7.5″ Ford.

Product Features:

Fits Ford 7.5″
Chrome

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$419.99

8.8″ Ford low profile TA HD Aluminum rear Cover. This cover will not fit vehicles with independent rear suspension.

Product Features:

Fits Ford 8.8″
Aluminum girdle cover

Top-Quality Rear Housing Cover Gaskets for 2008 Mercury Grand Marquis

Choose a high-quality OEM or aftermarket Rear Housing Cover Gasket for Mercury Grand Marquis and enjoy top-notch performance from $7.49.

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$7.49

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.

Product Features:

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered for the sealing repair environment
Validated for fit, form and function
Unsurpassed quality you can trust

Top Picks for 2008 Mercury Grand Marquis Rear Differential Cover Gaskets

Invest in one of our 4 durable Rear Differential Cover Gaskets for your 2008 Mercury, knowing you’re getting trusted brands and expert craftsmanship.

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$15.99

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.

Product Features:

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered for the sealing repair environment
Validated for fit, form and function
Unsurpassed quality you can trust

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$12.99

8.8″ Ford cover gasket.

Product Features:

Cover gasket
Fits Ford 8.8″

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$9.99

7.5″ Ford cover gasket.

Product Features:

Cover gasket
Fits Ford 7.5″

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$4.99

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 Bearings for 2008 Mercury Grand Marquis

Make a smart move for your 2008 Mercury Grand Marquis with products all priced from $6.99 to $27.99.

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$9.29

Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.

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

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$27.99

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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$19.99

Manufactured with premium-grade steel, National taper bearing cones feature crowned raceways and rollers to ensure even load distribution.

Product Features:

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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$11.29

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

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

Top-Rated Differential Brands For Your 2008 Mercury Grand Marquis

When it comes to finding the perfect Differential for your 2008 Mercury Grand Marquis, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 17 trusted brands. We carry the most popular Differential brands including National, Dorman, 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 $6.79. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 2008 Mercury Grand Marquis, providing peace of mind with parts that meet or exceed OEM standards.

Popular National 2008 Mercury Grand Marquis Differentials

If you’re looking for a top-quality Differential for your 2008 Mercury Grand Marquis, 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 $7.99 and an average cost of $15.09, you’ll find the perfect Differential for your needs and budget. National Differentials for the 2008 Mercury Grand Marquis 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.

from $9.29

(2)

Bearing Race

“Reasonable price and woks well. front diff 2006 Escalade esv”

from $7.99

(4)

Bearing Race

“Goes with M88010 bearing cup. Application was the pinion bearing race for a Ford 9 Inch on a 1957 Ford F-100.”

from $27.99

(1)

Multi-Purpose Bearing

“great price”

Top-Quality Dorman 2008 Mercury Grand Marquis Differentials

For those in search of a high-quality Differential for their 2008 Mercury Grand Marquis, Advance Auto Parts offers a great selection of Dorman Differentials. With 2 Dorman 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 $6.79, with an average price of $113.89, giving you a range of options to suit your budget. Backed by over 13 customer ratings and an average rating of 4.2 stars, Dorman Differentials provide both reliability and excellent performance. Choosing a Dorman Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.

from $6.79

(11)

Differential Shaft Lock Bolt

“Exactly like OEM”

from $220.99

(2)

Ford 8.8 Ring Gear with 31-splines and ABS Ring

“The old axle was worn terribly causing a mean vibration. This fit perfectly and has worked great so far.”

FAQs for 2008 Mercury Grand Marquis Differentials

What are the best-selling Differentials for 2008 Mercury Grand Marquis?

Out of 232 Differentials that fit 2008 Mercury Grand Marquis, the following parts are the top sellers:

DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart (12079201) – $14.49
DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart (12079139) – $11.99
Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart (12507273) – $18.99

What’s the price range for 2008 Mercury Grand Marquis Differentials?

The prices of Differentials for the 2008 Mercury Grand Marquis range from $1.29 up to $2,064.99 for the most premium parts.

What is the average price of a Differential for a 2008 Mercury Grand Marquis?

The average price for Differentials for the 2008 Mercury Grand Marquis is $300.70. 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 Mercury Grand Marquis model years?

Yes, we carry Differentials for 35 model years of Mercury Grand Marquis between 1975 and 2011. The following model years are the most popular for Differential purchases: 2011, 2010, 2009, 2007, 2006, 2005, 2004, 2003, and 2002.

What are the cheapest Differentials for my 2008 Mercury Grand Marquis?

The cheapest 2008 Mercury Grand Marquis Differentials we carry are:

Differential Ring Gear Bolt (10282257) – $1.29
Ring Gear Bolt (20520509) – $1.99
Differential Cross Shaft (10282201) – $2.99
Differential Crush Sleeve (10282338) – $2.99
Differential Crush Sleeve (10715159) – $3.99

Does Advance Auto Parts sell Differentials for any other 2008 Mercury models?

Yes. We stock Differentials for 3 other popular 2008 Mercury models. Some of the most popular are 2008 Mountaineer Differentials, 2008 Sable Differentials, 2008 Mariner Differentials, and 2008 Milan Differentials.

What are the top-rated Differentials that fit the 2008 Mercury Grand Marquis?

The one 2008 Mercury Grand Marquis Differential we have in stock is the Differential Ring Gear Bolt. It costs $1.29.

What types of Differentials do you sell for my 2008 Mercury Grand Marquis?

As of 11/2/25, these are some of the most in-demand types of Differentials for a 2008 Mercury Grand Marquis:

Can I get help with 2008 Mercury Grand Marquis Differential orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Mercury Differentials and more.

What is your return policy for Mercury Grand Marquis Differentials?

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

2008 Mercury Grand Marquis Differentials

Yukon Gear – Trac Loc Spring For Ford 9" & 8" (Part No.33518)

Yukon Gear – Short Yoke For Ford 9" HD With 28 Spline Axles And A 1330 U/Joint Size (Part No.41053)

Yukon Gear – Side Gear With Hub For 9" Ford With 31 Splines (Part No.16161)

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

National – Multi-Purpose Bearing (Part No.A-36)

Valvoline – SynPower Transmission & Differential Gear Oil: Full Synthetic 75W-140, 1 Gallon (Part No.887344)

Powertrax – Grip LS Traction System (Part No.LS109031)

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

Yukon Gear – The Carrier Bearing Puller (Part No.56072)

Yukon Gear – Dura Grip Case For Ford 8.8", 28 Spline (Part No.20072)

Motive Gear – Differential Pinion Seal (Part No.7044NA)

Yukon Gear – Bearing Race Driver (Part No.56023)

Yukon Gear – Axle For 8.8" Ford, 34-3/8" 28 Spline, 03 & Up Crown Victoria, With O ABS (Part No.21521)

Motive Gear – Differential Carrier Gear Kit (Part No.F8.8BI)

Spartan – Drive Axle Assembly; Ford 98-02 Lockup Axle (Part No.RAXP1917AC)

Motive Gear – Ring Gear Bolt (Part No.D5AZ4216A)

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

Yukon Gear – Pinion Gear And Thrust Washer (0.875" Shaft) For 8.8" Ford (Part No.33299)

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

Yukon Gear – Pinion Nut (Part No.33154)

Yukon Gear – Lightweight Steel Spool For Ford 9" With 31 Spline Axles (Part No.32046)

Richmond Gear – RngPnn (Part No.79-0004-1)

Motive Gear – Differential Pinion Shim Kit (Part No.WAA4663)

USA Standard Gear – 9" Ford Spartan Locker Cross Pin, Extra Short (Part No.17044)

National – Shaft Repair Sleeve (Part No.99181)

Yukon Gear – 9" Ford Gasket (Part No.23012)

USA Standard Gear – Bearing Kit For Ford 9", LM102949 Carrier Bearings (Part No.58043)

Yukon Gear – Master Overhaul Kit For Ford 9" Lm603011 Differential And Crush Sleeve Eliminator (Part No.14157)

Mobil 1 – 75W-90 Full Synthetic Gear Lubricant, Extends Gear Life, 1 Quart (Part No.26101)

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)

Valvoline – Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart (Part No.889785)

Yukon Gear – Redline Synthetic "Shock Proof" Oil With Positraction Additive – 4 Quarts (Part No.15005)

Yukon Gear – Redline Synthetic "Shock Proof" Oil – 3 Quarts (Part No.15000)

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

Idemitsu – Type HP Automatic Transmission Fluid , 1 Quart (Part No.10107-042F)

Yukon Gear – Steel Cover For Ford 8.8" (Part No.32328)

Yukon Gear – DiffrlCover (Part No.32364)

Yukon Gear – Chrome Cover For 8.8" Ford (Part No.32009)

Yukon Gear – Chrome Cover For 7.5" Ford (Part No.32008)

Yukon Gear – 8.8" Ford Low Profile Ta HD Aluminum Rear Cover (Part No.32114)

Felpro – Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket (Part No.RDS 55393)

Felpro – Axle Housing Cover Gasket Rectangular Shaped, 10 Bolt Hole Gasket (Part No.RDS 55341)

Yukon Gear – 8.8" Ford Cover Gasket (Part No.23011)

Yukon Gear – 7.5" Ford Cover Gasket (Part No.23009)

Pro-King – Differential Cover Gasket (Part No.762B303)

National – Bearing Race (Part No.LM501314)

National – Multi-Purpose Bearing (Part No.A-36)

National – Tapered Roller Bearing Cone (Part No.LM501349)

FAG US – Cup (Part No.M88010)

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