1999 Ford Explorer Differentials

Please Select your Vehicle to See Exact Fit Parts

Keep Your 1999 Ford Explorer in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1999 Ford Explorer looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Rear Differential Cover Gaskets, Differential Oil, and Differential Covers. 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 Royal Purple. For example, Motive Gear Differentials start at just $2.79 with an average 4.0 star rating. National and Royal Purple offer similar pricing and quality, backed by strong customer feedback. With over 5,005 reviews and a solid 4 star average, you can shop with confidence knowing other Ford Explorer owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1999 Ford Explorer Differential at Advance Auto Parts is around $279.21, with a range that starts at $1.29 and goes up to $2,199.99. With 249 options in stock from 22 trusted brands, finding the right fit is easy. Popular picks like High Performance 5W-30 Synthetic Engine Oil, Better Wear Protection, 5 Quart, High Performance 5W-30 Synthetic Motor Oil, Better Wear Protection, 1 Quart, and Mobil 1 Synthetic Gear Lubricant LS 75W-140, 1 Quart start at just $12.99 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 4WD Components and Universal Joints. At Advance Auto Parts, we’re here to help you keep your 1999 Ford Explorer in peak condition, inside and out.

Looking for the perfect Differential for your 1999 Ford Explorer? 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 Ford Explorer. Whether you’re driving a 1999 model or another popular model year like 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, and 2023, 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 1999 Ford Explorer Differentials

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$7.99

Product Features:

Brand may vary by location

from

$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

from

$2.99

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

Product Features:

Meets or exceeds OE specifications

from

$41.99

This direct replacement differential cover matches the fit and function of the original equipment diff cover for a reliable, leak-free repair. It features a durable design, made to strict specifications, to help ensure reliable service life.

Product Features:

Direct replacement – this differential cover matches the fit and function of the original equipment diff cover on select vehicles
Reliable repair – the smart solution for fixing an existing cover that’s rusted, damaged or leaking differential fluid
Durable construction – this differential cover is made according to strict engineering standards to help ensure dependability
Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience

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$194.99

Worn or damaged differential end yoke causing driveline Vibrations- This direct replacement end yoke matches the original equipment part for a trustworthy repair and reliable performance.

Product Features:

Direct replacement – this differential end yoke matches the fit and construction of the original yoke
Excellent value – this replacement end yoke offers original equipment quality at a fraction of the price of dealer parts
Quality materials – this end yoke is machined from cast iron for strength and is precision machined for reliability
Validated fit – this differential end yoke has been tested to confirm accurate fit

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$52.99

The Yukon Zip Locker is the latest in on-demand traction. Its air-operated design allows you to switch from an open differential to 100% lockup when you need it, giving you the ultimate in driver select ability.

Product Features:

Air line repair kit
Includes 20′ air line and two repair fittings

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$9.99

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

Product Features:

Meets or exceeds OE specifications

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$22.79

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 on and off-road, check out Motive Gear. Motive Gear products can be found in the winner’s circle at racing events worldwide. The superior quality of Motive Gear components is the result of years of racing development, outstanding design and state-of-the-art manufacturing methods. Extensive testing is performed on all products by our in-house engineers.

Product Features:

FORD 9″ SOLID SPACER KIT

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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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$526.69

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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$26.99

Richmond Gear is the leading manufacturer of professional quality, high-performance drivetrain products. Our complete line of products ranges from high performance ring-and-pinion sets for serious street and racing applications to torque-hungry manual transmissions and components. Richmond Gear products have been winners both at the Daytona 500 and U.S. Nationals for decades. WINNERS RUN RICHMOND.

Product Features:

For over 80-years, the Richmond Double-Diamond logo has represented some of the highest quality gears in the racing industry. Winners Run Richmond.
The superior quality of Richmond gearsets is a result of outstanding design, world class manufacturing and an extensive testing process that is performed on all products.
Richmond performance gearsets have been winners for decades at: NHRA, NMRA, NMCA, Daytona 500, WISSOTA and U.S. Nationals.
Richmond Gear is a leading manufacturer of high performance ring and pinion gearsets and drivetrain components, backed by limited warranty.
Engineered to perform faster and be more reliable, Richmond performance drivetrain products are the result of a continuous research and development program combined with state-of-the-art manufacturing capabilities.

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$59.99

Yukon shim kits are precision machined and tailored for each individual application to ensure you have the right shims for every set up.

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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$649.99

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 Limited warranty against defect.

Product Features:

Fits Ford 8.8″ with 31 spline axles and 7/8″ cross pin shaft
Made from 9310 steel for added strength
Replaces the spiders in a standard carrier case

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$35.99

Product Features:

MINI INSTALL KIT FORD 8.8

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$25.99

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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$719.99

Main Cap stud kit for Ford 7.5″, 8.8″, 9″, 10.25″, Dana 44, 60, and 70.

Product Features:

Trac Loc positraction
Fits Ford 8.8″ with 31 spline axles

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$99.99

Yukon Carrier Installation Kits are a convenient and low-cost solution for carrier changes in cases where one is upgrading to a positraction limited slip differential, a mechanical locker, or an air operated locker. These kits contain carrier bearings and races and a carrier shim kit.

Product Features:

Fits Dana Spicer 30
Includes carrier bearings and races and carrier shim kit

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$1469.99

Remanufactured Rear Axle assemblies are completely disassembled and thoroughly cleaned and reassembled using new wear parts: gears, pinions, assembly bolts, bearings, seals, etc. Each unit is micrometer checked for proper gear mesh. Units are assembled, sealed and include backing plates, axle shafts and fluid. Axles are packaged in heavy plastic to protect the unit & aid in returning the core.

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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$8.99

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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$14.99

Valvoline Import Multi-Vehicle Automatic Transmission Fluid is specifically formulated for use in most Toyota, Nissan, Honda and other imported vehicles. It is formulated with all synthetic base stocks and a proprietary additive system to ensure optimal transmission performance in a wide variety of vehicles. Valvoline Import Multi-Vehicle ATF can also be used in many domestic vehicles. It meets requirements of General Motors and Ford vehicles. Recommended for use in the following applications: Ford MERCON, GM DEXRON-II and DEXRON-III, BMW LT 71141 and ETL-7045E, Nissan/Infiniti Nissan ATF, Matic-D, Matic-K and Matic-J, Mitsubishi Diamond SP-II and SP-III, Subaru ATF-HP, Hyundai/ KIA SP-II and SP-III, Toyota/Lexus Type T, T-III and T-IV, Honda/Acura ATF-Z1 (except in CVTs), Mercedes Benz NAG1, Volvo passenger car (except AW-1), and Volkswagen/Audi TL52162. For CVT applications Valvoline recommends Valvoline Full Synthetic CVT Fluid.

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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$196.99

Product Features:

DANA-35 R/P 4.11 STD

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$6.99

Yukon 1541H alloy replacement rear axle for Dana 60, 70, and 80, 35 spline. (40″ to 43.5″) Full float axle (8×3.96″ ). Yukon 1541H alloy axles offer a strength increase over stock while retaining a low cost. Yukon 1541H alloy rear axles come with a one year warranty against manufacturing defects. This is a full-floating axle.

Product Features:

35 spline
8 x 3.96″ bolt pattern
Cut to length design fits 40″-43.5″ applications
Fits Dana Spicer 60, 70 and 80

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$167.99

Yukon Pinion Installation Kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings and races can be reused. This kit features Timken bearings and races along with high-quality seals and small parts. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your gear set.

Product Features:

Fits 2009 and down Ford 8.8″
Included are pinion bearings and races, pinion seal, crush sleeve , complete pinion shim kit, and marking compound with brush.

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$364.99

Yukon Ring & Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of conditions. Whether it’s on the street, off-road, or at the track; Yukon ring & pinion sets deliver unrivaled performance & quality. Yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up. All Yukon ring & pinion sets come standard with a one-year warranty.

Product Features:

Fits standard rotation AMC Model 35
7.562″ ring gear diameter
26 spline pinion
8 ring gear bolts
4.88 ratio

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$6.99

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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$99.99

Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.

Product Features:

Trac Loc spring for Ford 8.8″
31 spline applications only

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$44.99

Spring kit for Dana Spicer 28, AMC Model 35 IFS, Dana Spicer 44 IFS and Dana Spicer 50 IFS
Allows for installation of positraction or locker

Popular 1999 Ford Explorer 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 Mini Spools

Differential Ring and Pinions

Differential End Yokes

Differential Pinion Supports

Differential Lock Assemblies

Differential Spools

Differential Carrier Bearings

Differential Lock Springs

Rear Housing Cover Gaskets

Differential Pinion Bearing Kits

Differential Seals

Complete Differentials

Differential Ring Gear Bolts

Bearing Race Drivers

Differential Pinion Shafts

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 Bearing Baffles

Differential Pinion Gear Thrust Washers

Differential Drive Pinion Oil Deflectors

Auxiliary Shaft Bearings

Differential Ring and Pinion Kits

Differential Spider and Pinion Gear Kits

Limited Slip Differential Assemblies

Differential Carrier Bearing Races

Differential Pinion Bearing Spacers

Most Popular Rear Differential Cover Gaskets for 1999 Ford Explorers

Enhance your 1999 Ford Explorer with one of the 3 Rear Differential Cover Gaskets we have in stock, starting at just $4.99.

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from

$12.99

8.8″ Ford cover gasket.

Product Features:

Cover gasket
Fits Ford 8.8″

Performance Differential Gasket - Ford 8.8 Axle

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$26.99

Spicer performance differential cover gaskets offer all-makes coverage for street, strip, drag, and off-road applications. These gaskets are reusable offering a clean release during replacement. Built with a mechanically and chemically bonder woven steel.

Product Features:

Made to adhere without messy RTV sealant This saves on install time by eliminating the time needed for RTV cure.
Provides no re-torque design with maximum compression and sealing.
Manufactured with proprietary high-density performance material.
Made in the USA.

from

$4.99

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

Product Features:

Meets or exceeds OE specifications

Best-Selling 1999 Ford Explorer Differential Oil

Upgrade your Explorer with one of our 10 best-selling Differential Oil, earning an average 5 stars rating across 751 reviews.

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from

$45.99

Royal Purple Motor Oil is a specially formulated multi viscocity oil for use in gasoline and diesel engines of all types from cars and trucks to SUVs, motorcycles and boats. Royal Purple(R) Motor Oil with Synerlec(R) additive technology reduces friction, which results in a 1-3 percent increase in horsepower, lowers operating temperatures, provides superior corrosion protection, improves fuel economy, reduces emissions and extends oil life. A.P.I. Certified.

Product Features:

Better wear protection
Increased fuel efficiency
Better protection of the expensive catalytic emission system
Improved compatibility with fuels containing ethanol
Superior corrosion protection
Meets ILSAC GF-5 and Dexos1 performance requirements

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$12.49

Valvoline Full Synthetic MaxLife Multi-Vehicle ATF, the No. 1 ATF product, suitable for use in 95% of vehicles. And now, it’s recommended for most belt & chain-driven continuously variable transmissions (CVT). Featuring advanced additives to prevent the major causes of transmission breakdown, it’s designed to help prevent leaks, reduce wear & tear, and maximize performance. Has improved thermal stability for longer fluid life, better viscosity stability for consistent transmission operation, and frictional enhancements for smooth gear engagements. Valv MaxLife Multi-Vehicle ATF is suitable for most Ford, GM, Toyota, Honda, Nissan, Hyundai, Subaru, BMW, Mercedes, Volvo, VW & Audi vehicles. Recommended for use in: GM DEXRON-II, DEXRON-III, DEXRON-VI, and DEX-CVT; Ford MERCON LV; Toyota/Lexus Type T, T-II, T-IV, WS, CVTF FE, and CVTF TC; Honda/Acura ATF-Z1 and Honda CVT; Nissan/Infiniti Matic-D, Matic-J, Matic-K and Matic-S; Hyundai/Kia SP-II, SP-III, SP-IV and SPH-IV; BMW 7045E, ETL 8072B, LA2634 and LT71141; Allison C-4; Mercedes-Benz NAG-1; Volvo 1161521, 1161540, 97340 and 1273.41; Subaru ATF HP, Lineartronic chain CVT and CVT-II, Lineartronic High Torque CVT, and CV-30; and VW/Audi G-052-025-A2 and G-052-162-A1. CURRENTLY UNABLE TO SHIP THIS PRODUCT TO CUSTOMERS LOCATED IN CALIFORNIA

Product Features:

FOR USE IN 95% OF VEHICLES INCLUDING MOST CVTs in operation with US registered light duty applications
HIGH PERFORMANCE CONDITIONING AGENTS prolong seal elasticity to prevent leaks
IMPROVED DURABILITY & TRANSMISSION LIFE with anti-wear technology to avoid costly repairs
ENHANCED HIGH & LOW TEMP PERFORMANCE supports transmission fluid in all weather situations

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$12.99

High Performance Motor Oil API LICENSED MOTOR OIL Royal Purple High Performance Motor Oil combines premium base oils with proprietary additive technologies to create a high performance synthetic engine oil that optimizes performance and protection. Royal Purple High Performance Motor Oils carry the current API and ILSAC engine oil licenses, as well as the GM dexos1 gasoline engine oil approval. ILSAC GF-6 AND GM DEXOS1 Modern gasoline direct injection (GDI) engines have achieved levels of power and fuel economy never before possible in passenger car engines. As a result, smaller engines operate at much higher loads across all engine speeds. This has caused increased wear in critical areas of the engine, and created a destructive phenomenon called low-speed pre-ignition (LSPI). The unique, state-of-the-art additive technology in Royal Purple High Performance engine oils is designed specifically to address these issues, and help engines maintain performance and reliability.

Product Features:

Better Wear Protection
Increased Protection against Low Speed Pre-Ignition
Increased Fuel Efficiency
Better Protection for Vehicle Exhaust Emissions Equipment
Improved Compatibility with Fuels Containing Ethanol
Superior Corrosion Protection
Made in USA

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$21.99

Mobil 1 Synthetic Gear Lubricant LS 75W-140 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-140 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 a 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 synthetic automotive gear lubricant exceeds the highest level of performance requirements for 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: 102490

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$57.99

Union 76 gear oil is a conventional non-synthetic 80W90 formulation designed for all types of differentials. This kit includes three quarts of oil and a bottle of Yukon Limited Slip Friction modifier that reduces noise and chatter in clutch driven positraction units and limited slip differentials.

Product Features:

Includes three quarts of conventional oil and one 4oz bottle of Yukon positraction additive

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$44.99

Union 76 gear oil is a conventional non-synthetic 80W90 formulation designed for all types of differentials.

Product Features:

Includes three quarts of conventional oil

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$66.99

Royal Purple HMX SAE 5W-30 High-Mileage Synthetic Motor Oil, 5 quart is specifically designed to minimize wear and restore lost performance in engines with more than 75,000 miles. Formulated with robust zinc/phosphorus anti-wear compounds combined with Royal Purple’s proprietary additive technology Synerlec, HMX is chemically enhanced to revitalize hardened seals, reducing oil consumption common in high-mileage engines. In addition, HMX is fortified with stout detergents to remove engine build-up and deposits, maintain cleanliness and promote engine longevity.

Product Features:

Specifically designed to minimize wear and restore lost performance in engines with more than 75,000 miles
Formulated with robust zinc/phosphorus anti-wear compounds combined with Royal Purple’s proprietary additive technology
HMX is chemically enhanced to revitalize hardened seals, reducing oil consumption common in high-mileage engines
Reduces friction and metal-to-metal contact for peak engine performance
Also provides outstanding oxidation resistance to safely extend oil drain intervals, and an ionic attraction to metal surfaces, providing protection and minimizing wear at start-up

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$148.99

Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection. This kit includes four quarts of oil and a bottle of Yukon Limited Slip Friction modifier that reduces noise and chatter in clutch driven positraction units and limited slip differentials.

Product Features:

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

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$99.99

Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection.

Product Features:

Includes three quarts of Redline Shockproof oil

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$137.99

Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection.

Product Features:

Includes four quarts of Redline Shockproof oil

Top-Quality Differential Covers for 1999 Ford Explorers

Choose a high-quality OEM or aftermarket Differential Cover for Ford Explorers and enjoy top-notch performance from $37.99.

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from

$41.99

Direct replacement – this differential cover matches the fit and function of the original equipment diff cover on select vehicles
Reliable repair – the smart solution for fixing an existing cover that’s rusted, damaged or leaking differential fluid
Durable construction – this differential cover is made according to strict engineering standards to help ensure dependability
Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience

from

$37.99

Differential covers can become damaged from road debris, corrosion, or bolt/drain plug over tightening. Their job is to act as a lid keeping lubricants in place for the ring and pinion gears, bearings, and bushings. Without lubricants, the differential quickly become damaged. ATP Differential Cover Kits include a replacement gasket and are designed to fit and function just like the original part ensuring long life and durability.

from

$99.99

These Yukon replacement diff covers are a direct bolt-on.

Product Features:

Fits Ford 8.8″
Steel

from

$74.99

These Yukon replacement diff covers take your rig a step beyond the boring factory look. They are the stock OE design finished in chrome.

Product Features:

Fits Ford 8.8″
Chrome

from

$344.99

This cover has an increased oil capacity over stock for better performance over a longer duration. Built-in internal and external fins transfer heat from the oil to the outside air for maximum cooling. This cover incorporates a magnetic drain and deep reach fill plug to capture loose particles for maximum protection. A calibration plug is set to the factory oil level to prevent overfilling. A pre-installed oil level sight glass allows quick and easy oil inspection.

Product Features:

Constructed out of durable cast aluminum
Black powder coat with machined fins
Add appropriately 0.5 quart over stock
Dual Neodymium magnetic plugs are used for maximum gear protection
Dual Neodymium magnetic plugs are used for maximum gear protection

from

$299.99

This cover has an increased oil capacity over stock for better performance over a longer duration. Built-in internal and external fins transfer heat from the oil to the outside air for maximum cooling. This cover incorporates a magnetic drain plug to capture loose particles for maximum protection. A calibration plug is set to the factory oil level to prevent overfilling. Our optional deep reach magnetic fill plug (PN: 46-00002) and oil level sight glass (PN: 46-00001) are great additions to combine with this cover. When it comes to engineering for power, performance, protection and value, aFe POWER is the only choice.

Product Features:

Constructed out of durable cast aluminum
Add appropriately 0.5 quart over stock
Neodymium magnetic drain plug for the engine protection
Calibration Plug Set to the Factory Oil Level to Prevent Overfilling
Calibration Plug Set to the Factory Oil Level to Prevent Overfilling

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$299.99

B&M Cast Aluminum Differential Covers are designed to strengthen the differential by preventing case distortion and ring gear & bearing cap deflection. Constructed of A356.0-T6 aluminum, these rugged covers significantly increase the fluid capacity and dissipate heat much faster than the stock factory unit to prolong the life of your ring and pinion gears. Additional features include an engraved B&M logo, drain and fill port locations, a magnetic drain plug for catching ferrous metal particles, and complete hardware and installation instructions.

Product Features:

Additional Oil Capacity
More Cooling Ability
No Dipstick Modification
Some Include Fluid Pickup Extension
Built-In Drain Plugs
Cast Aluminum

Our Top Pick for a 1999 Ford Explorer Rear Housing Cover Gasket

Invest in a durable Rear Housing Cover Gasket for your 1999 Ford, knowing you’re getting trusted brands and expert craftsmanship.

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from

$15.99

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-Rated Differential Bearings for 1999 Ford Explorers

Make a smart move for your 1999 Ford Explorer with products all priced from $6.99 to $54.99.

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from

$11.99

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

from

$10.99

Value-priced bearing meets all cataloged application requirements.

Product Features:

Brand may vary by location

from

$27.99

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

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

from

$21.99

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

from

$54.99

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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We develop and produce high-quality roller bearings, spherical bearings, and plain bearings worldwide for a wide range of applications.

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

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High-precision and High-quality components used in all KITs
Coverage of classic and new high-tech solutions for the best system coverage

Top-Rated Differential Brands For Your 1999 Ford Explorer

When it comes to finding the perfect Differential for your 1999 Ford Explorer, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 22 trusted brands. We carry the most popular Differential brands including Royal Purple, National, and Motive Gear, and more, all known for their exceptional customer ratings (average brand rating of 4.8 stars) and competitive prices, as low as $2.79. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1999 Ford Explorer, providing peace of mind with parts that meet or exceed OEM standards.

Popular Royal Purple 1999 Ford Explorer Differentials

If you’re looking for a top-quality Differential for your 1999 Ford Explorer, Advance Auto Parts has exactly what you need with our selection of Royal Purple Differentials. We have 2 Royal Purple Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $12.99 and an average cost of $29.49, you’ll find the perfect Differential for your needs and budget. Royal Purple Differentials for the 1999 Ford Explorer come highly rated, with over 215 customer reviews and an impressive average rating of 4.8 stars. Choosing a Royal Purple Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

from $45.99

(133)

High Performance 5W-30 Synthetic Engine Oil, Better Wear Protection, 5 Quart

“Great products”

from $12.99

(82)

High Performance 5W-30 Synthetic Motor Oil, Better Wear Protection, 1 Quart

“I love this product”

Top-Quality National 1999 Ford Explorer Differentials

For those in search of a high-quality Differential for their 1999 Ford Explorer, Advance Auto Parts offers a great selection of National Differentials. With 3 National 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 $11.99, with an average price of $17.09, giving you a range of options to suit your budget. Backed by over 37 customer ratings and an average rating of 4.3 stars, National Differentials provide both reliability and excellent performance. Choosing a National Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.

from $13.29

(28)

Multi-Purpose Seal

“05 F150, 4.6L 4×4, 8.8 Rear End, Pinion Seal This was a high quality seal. It is easy to tap in because on the metal ring on the outside of the seal. ”

from $25.99

(7)

Tapered Roller Bearing Cone

“Good price”

from $11.99

(2)

Bearing Race

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

FAQs for 1999 Ford Explorer Differentials

What are the best-selling Differentials for 1999 Ford Explorers?

Out of 249 Differentials that fit 1999 Ford Explorers, the following parts are the top sellers:

High Performance 5W-30 Synthetic Engine Oil, Better Wear Protection, 5 Quart (11150912) – $45.99
High Performance 5W-30 Synthetic Motor Oil, Better Wear Protection, 1 Quart (8070001) – $12.99
Mobil 1 Synthetic Gear Lubricant LS 75W-140, 1 Quart (7070076) – $21.99

What’s the price range for 1999 Ford Explorer Differentials?

The prices of Differentials for the 1999 Ford Explorer range from $1.29 up to $2,199.99 for the most premium parts.

What is the average price of a Differential for a 1999 Ford Explorer?

The average price for Differentials for the 1999 Ford Explorer is $279.21. 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 Ford Explorer model years?

Yes, we carry Differentials for 34 model years of Ford Explorers between 1991 and 2026. The following model years are the most popular for Differential purchases: 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, and 2015.

What are the cheapest Differentials for my 1999 Ford Explorer?

The cheapest 1999 Ford Explorer Differentials we carry are:

Differential Ring Gear Bolt (10282257) – $1.29
Ring Gear Bolt (20520509) – $1.99
Differential Ring Gear Bolt (10282436) – $1.99
Differential Crush Sleeve (20520219) – $2.79
Differential Cross Shaft (10282201) – $2.99

Does Advance Auto Parts sell Differentials for any other 1999 Ford models?

Yes. We stock Differentials for 21 other popular 1999 Ford models. Some of the most popular are 1999 F-150 Differentials, 1999 F-250 Differentials, 1999 Mustang Differentials, 1999 E-250 Econoline Differentials, and 1999 E-350 Econoline Differentials.

What are the top-rated Differentials that fit the 1999 Ford Explorer?

The one 1999 Ford Explorer Differential we have in stock is the Differential Ring Gear Bolt. It costs $1.29.

What types of Differentials do you sell for my 1999 Ford Explorer?

As of 6/2/26, these are some of the most in-demand types of Differentials for a 1999 Ford Explorer:

Can I get help with 1999 Ford Explorer Differential orders?

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

What is your return policy for Ford Explorer Differentials?

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

1999 Ford Explorer Differentials

Driveworks – Tapered Roller Bearing (Part No.S-LM-603012)

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

Pro-King – Differential Cross Shaft (Part No.742G930)

Dorman – Differential Cover (Part No.697-702)

Dorman – Differential Pinion Yoke Assembly (Part No.697-532)

Yukon Gear – Air Line Repair Kit, Zip Locker (Part No.34003)

Pro-King – Differential Carrier Shim Kit (Part No.713A202)

Motive Gear – Differential Pinion Bearing Spacer (Part No.4105)

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

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

Powertrax – Grip PRO Traction System (Part No.GT443527)

Richmond Gear – Differential Pinion Shaft (Part No.CSPF88L)

Yukon Gear – Super Carrier Shim Kit for Ford 8.8", GM 12 bolt car & truck, 8.6 & Vette (Part No.55002)

USA Standard Gear – Differential Open Unit/Component (Part No.17005)

Motive Gear – Differential Gear Install Kit (Part No.F8.8IK)

National – Tapered Roller Bearing Cone (Part No.HM88648)

Yukon Gear – Trac Loc Positraction, Ford 8.8", 31 Spline (Part No.20069)

Yukon Gear – Carrier Installation Kit for Dana 30 Differential (Part No.57002)

Spartan – Drive Axle Assembly; FoMoCo SUV 96-00 Axle (Part No.RAX1831D)

Felpro – Axle Housing Cover Gasket Round Shaped 10 Bolt Hole Gasket (Part No.RDS 55460)

Valvoline – Import Multi-Vehicle Synthetic Automatic Transmission Fluid, 1 Quart (Part No.822389)

Motive Gear – Differential Ring and Pinion (Part No.D35-411)

Yukon Gear – Cover Bolt For Ford 7.5", 8.8" & 9.75" (Part No.33554)

Yukon Gear – Pinion Install Kit for Ford 8.8" Differential (Part No.13041)

Yukon Gear – High Performance Ring & Pinion Gear Set For Model 35 In A 4.88 Ratio (Part No.24183)

Motive Gear – Differential Pinion Nut (Part No.379570S)

Yukon Gear – Trac-Loc Spring for Ford 8.8", 31 Spline (Part No.33516)

Yukon Gear – Spring Kit for Dana 28, Model 35IFS, Dana 44IFS & Dana 50IFS with Grizzly (Part No.33263)

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

Spicer – Performance Differential Gasket – Ford 8.8 Axle (Part No.RD52005)

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

Royal Purple – High Performance 5W-30 Synthetic Engine Oil, Better Wear Protection, 5 Quart (Part No.51530)

Valvoline – MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Quart (Part No.VV324)

Royal Purple – High Performance 5W-30 Synthetic Motor Oil, Better Wear Protection, 1 Quart (Part No.01530)

Mobil 1 – Mobil 1 Synthetic Gear Lubricant LS 75W-140, 1 Quart (Part No.44815)

Yukon Gear – 3 Qt – 80W90 Conventional Gear Oil with Posi Additive (Part No.15003)

Yukon Gear – 3 Qt – Penzoil 80W90 Conventional Gear Oil (Part No.15002)

Royal Purple – HMX 5W-30 High Mileage Synthetic Motor Oil, Restores Engine Performance, 5 Quart (Part No.11748)

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)

Dorman – Differential Cover (Part No.697-702)

ATP – Differential Cover Kit With Internal Magnet (Part No.111103)

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

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

aFe POWER – Pro Series Rear Differential Cover Black With Machined Fins (Part No.46-71410B)

aFe POWER – Street Series Rear Differential Cover Raw With Machined Fins (Part No.46-71410A)

B & M – Rear End Cover 1 EA B&M (Part No.40297)

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

National – Bearing Race (Part No.LM501314)

Driveworks – Taper Bearing Cone (Part No.S-LM-501349)

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

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

Schaeffler – Cone (Part No.KNP343847)

Schaeffler – Bearing – CRB (Cylindrical Roller Bearing) (Part No.FC67147)

Schaeffler – Bearing – TRB (Tapered Roller Bearing) (Part No.KT5)

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

Schaeffler – Cup (Part No.LM48510)