1985 Mercury Cougar Differentials

Find your specific 1985 Mercury Cougar original or aftermarket Differentials below. Order your parts online and have delivered to your home or pick up in-store at Advance Auto.

Essential 1985 Mercury Cougar Differentials

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$201.99

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 2009 and down Ford 8.8″
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, thread locker, marking compound with brush and gasket.

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$10.99

Product Features:

Trac Loc spring plate for Ford 8″ and 9″

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$834.99

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 Ford 8.8″ with 28 spline axles
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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$15.79

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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$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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$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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$6.99

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

Product Features:

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

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$99.99

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

Product Features:

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

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$6.69

CUP

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$22.99

Sealed Power® parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:

Steel-backed Babbitt lining material
Used in automotive and high-performance
Babbitt is designed to perform under extreme loads w/o damaging other engine parts
Babbitt is more environmentally friendly than other material
ISO & QS certified manufacturing

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$218.99

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 Ford 8.8″ with 28 spline axles
Provides 100% traction to both wheels at all times
Installs into standard open carrier case

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$929.99

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 uses 8620 internals and a patented design to provide maximum strength and reduce common failures. Assembled in the USA! This unit has been approved for competition in NASCAR National & Touring series. 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 31 spline axles
Patented internal design reduces common locker failures
8620 internals for added strength
Assembled in the USA

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$46.49

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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$225.99

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, crush sleeve eliminator , complete pinion shim kit, and marking compound with brush.

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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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$134.99

Yukon Carrier installation kits are great, low cost kit for carrier changes such as Positraction or locker upgrades. Carrier installation kit for Ford 8.8″ differential. This kit contains carrier bearings, races and shims.

Product Features:

Fits Ford 8.8″
Includes carrier bearings and races and “super” carrier shim kit

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$9.99

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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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$242.99

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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$1566.99

21 Piece bearing race driver set. (Box wt: 140lbs) No return.

Product Features:

Bearing race driver set
21 pieces
All steel construction

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$444.99

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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$336.99

Yukon positraction internals for 8.8″ Ford with 28 spline axles. This kit fits Yukon Gura Grip & Eaton positractions. 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 8.8″ with Yukon Dura Grip positraction with 28 spline axles
Includes two side gears, two pinion gears, cross pin shaft, roll pin and spider gear thrust washers.

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$35.99

Valvoline DEX/MERC ATF is a high-quality transmission fluid formulated to meet the challenging demands 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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$14.99

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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$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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$8.99

Pinion gear thrust washer (0.750″ shaft) for 8.8″ Ford.

Product Features:

Pinion gear thrust washer
Fits Ford 8.8″
0.750″ I.D.

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$8.99

Product Features:

Steel clutch plate
Fits Ford 8″ and 9″ Trac Loc

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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

Popular 1985 Mercury Cougar 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

Auxiliary Shaft Bearings

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 1985 Mercury Cougar. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 170 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 1985 Mercury Cougar running smoothly.

Differentials are only as good as their brand. We stock 14 different brands to make sure you have plenty of trusted parts to choose from for your 1985 Mercury Cougar. Yukon Gear, Dorman, and National 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 1985 Mercury Cougar, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 81 reviews in this category, some of the top rated parts include Differential Master Bearing Kit – Koyo with 5.0 stars and Differential Pinion Shim Kit with 5.0 stars.

So if you’re in the market for aftermarket Differentials to keep your 1985 Mercury Cougar 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 1985 Mercury Cougar Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1985 Mercury Cougar 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 Cougar the best it can be. Be sure to browse some of our top Differentials brands and parts.

Popular Felpro Differentials

We carry Felpro parts in our stock across Rear Housing Cover Gaskets categories, plus more. For a 1985 Mercury Cougar, our most popular Felpro Differentials include:

from $15.79

(3)

Differential Cover Gasket

Rear Housing Cover Gaskets

Top 1985 Mercury Cougar Differentials from Dorman – Help

Dorman – Help products are another trusted brand when it comes to Differentials for your 1985 Mercury Cougar. Popular Dorman – Help parts include:

from $5.99

(11)

Differential Shaft Lock Bolt

Differential Pinion Shaft Lock Bolts

FAQs for 1985 Mercury Cougar Differentials

What are the most purchased Differentials for the 1985 Mercury Cougar?

Out of 170 Differentials for the 1985 Mercury Cougar, 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 $4.79

(1)

Oil Seal

Differential Pinion Seals

What are the top-rated 1985 Mercury Cougar Differentials?

Top-rated Differentials for your 1985 Mercury Cougar based on customer reviews/ratings are:

from $112.99

(1)

Differential Master Bearing Kit – Koyo

“perfect product”

from $7.49

(1)

Differential Pinion Shim Kit

“good product”

from $444.99

(1)

Lock Right Locker

“Fast service and the right part.”

1985 Mercury Cougar Differentials

More 1985 Mercury Cougar Differentials

Essential 1985 Mercury Cougar Differentials

USA Standard Gear – Master Overhaul Kit for ’09 & Down Ford 8.8" Differential. (Part No.37030)

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

Yukon Gear – Dura Grip Positraction For Ford 8.8" With 28 Spline Axles (Part No.26005)

Felpro – Differential Cover Gasket (Part No.RDS 55081)

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

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

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

Pro-King – Differential Internal Nest Kit (Part No.762B717A)

FAG US – CUP (Part No.LM67010)

Sealed Power – Engine Auxiliary Shaft Bearing Set (Part No.1460M)

Yukon Gear – Mini Spool For Ford 8.8" With 28 Spline Axles (Part No.32225)

Yukon Gear – Grizzly Locker For Ford 9" With 31 Spline Axles (Part No.28009)

Motive Gear – Differential Gear Install Kit (Part No.F9IKN)

Yukon Gear – Pinion Install Kit For Ford Daytona 9" Differential (Part No.13049)

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

Yukon Gear – Carrier Installation Kit For Ford 8.8" Differential (Part No.57007)

Motive Gear – Differential Pinion Seal (Part No.8181NA)

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

Dorman – Rear Axle Shaft, Left or Right (Part No.630-228)

Yukon Gear – Bearing Race Driver Set, 21 Piece (Part No.56030)

Powertrax – Lock Right Locker (Part No.1830-LR)

Yukon Gear – Positraction Internals For 8.8" Ford With 28 Spline Axles (Part No.16015)

Valvoline – DEX/MERC Automatic Transmission Fluid, 1 Gallon (Part No.773636)

Felpro – Differential Cover Gasket (Part No.RDS 55341)

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

Yukon Gear – Pinion Gear And Thrust Washer (0.750" Shaft) For 8.8" Ford (Part No.33297)

Yukon Gear – Trac Loc Steel Clutch Plate, 4 Tab (Part No.16178)

Yukon Gear – Pinion Nut (Part No.33154)

Popular 1985 Mercury Cougar Differentials Categories