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2008 FORD EXPEDITION Transmission & Drivetrain
Showing In Stock Items. Show All 149 Items.
Eaton Detroit Truetrac Differentials
Eaton Detroit Truetrac differentials use a patented design of parallel-axis planetary helix gears to provide a quiet, automatic splitting of torque. They perform like a limited-slip differential under normal driving conditions, automatically transferring torque to the wheel with better traction when ground conditions warrant. These replacement units are available for dozens of axle applications.
( 509 )
$749.99
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$829.99
RCV Ultimate IWE Eliminator Sets
Completely do away with your vehicle's OEM IWE with RCV's Ultimate IWE eliminator sets that contain their ultimate 4340 sleeves. Simply remove the stock IWE and install these sleeves in their place. Once installed, your hubs become fully locked to the axle shafts allowing you to use the transfer case to shift in and out of 4WD. Confident in their design and strength, these gears come with RCV Performance's limited lifetime warranty against breakage! Select a set for your vehicle.
( 3 )
$199.95
Spicer Drivetrain Products Differential Cover Kits
Rust, rocks, and road debris all take part in destroying differential covers—so Spicer Drivetrain Products introduces a line of axle-specific replacements. These kits include a new cover, plug, and installation bolts for an all-new look. They're available in a variety of materials and finishes for high strength and good looks. The differential covers are offered for the front or rear with select options for your particular application.
( 100 )
$165.99
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$169.99
Yukon Gear & Axle Dura Grip Positraction Carriers
Yukon Gear & Axle Dura Grip positraction carriers offer great traction and strength, and yet are not overly aggressive for the streets. These nodular iron or steel replacements are 4-spring, Raybestos composite, clutch-style, limited-slip carriers—with internal gears machined from forged 4320 steel with stronger teeth. Assembled in the USA, the Yukon differential carriers are rebuildable, allowing for repairs or modifications without buying a new unit. They're available for fitment with nearly two dozen axle models. What are you using to transfer power? Choose smooth operation with strong lockup abilities to transfer torque—benchmarks of the Yukon Gear & Axle Dura Grip positraction carriers.
( 140 )
$427.00
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$1,052.99
Motive Gear Master Ring and Pinion Installation Kits
Motive Gear master ring and pinion installation kits include everything that's in their regular differential kit—plus pinion shims, carrier shims, and ring gear bolts (where applicable). You also have the option of upgrading to higher quality bearings by adding "T" to the end of the part number on some models. Make a better choice for your ring and pinion installation with Motive Gear differential master bearing kits. Order the model designed for your vehicle application.
( 343 )
$87.99
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$344.99
Motive Gear Ring and Pinion Sets
Motive Gear is the leading manufacturer of driveline products for just about any vehicle, whether it is a stock daily driver or a full-competition 4x4 or race car. They are proud to offer an unmatched selection of quality components engineered and manufactured for the vehicle and for the way it is driven. Motive Gear ring and pinion sets are engineered to meet or exceed OEM specifications at a price that won't break your budget. Their broad selection of ring and pinion ratios is available for just about every vehicle made from the 1940s through the present. All Motive Gear products meet strict quality standards through advanced manufacturing techniques and are backed by their strong warranty. Their in-house quality control lab utilizes state-of-the-art equipment to continuously check Motive Gear products for strength, tolerance, and hardness. Only after meeting stringent quality standards are Motive Gear products packaged and ready for delivery.
( 284 )
$311.99
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$532.99
Summit Bucks
Moog Super Strength U-Joints
Moog Super Strength U-joints are precision-manufactured to exacting standards. They have forged and case-hardened alloy steel crosses and heat-treated needle bearings. Cold-formed radial bearing cups provide 360 degree lubrication distribution, while superior-quality seals and a grease fitting make for easy maintenance. In addition, the Super Strength U-joints have an exclusive microshield coating to protect against rust and corrosion. They are available in greasable and non-greasable styles for more than a dozen positions--in universal and vehicle-specific applications.
( 229 )
$15.99
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$25.99
Timken Pinion Bearings
Timken pinion bearings offer durability and peace of mind. Known the world over, Timken bearings are precision-engineered to provide you with superior quality, along with energy-efficient and cost-effective friction management. For a proper fit that will run smoothly, these single-row tapered roller bearings are your best bet when replacing old and worn pinion bearings. Timken bearings are available for dozens of axle types; choose the models that match your vehicle specs.
( 59 )
$18.99
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$38.99
Eaton Detroit Lockers
Eaton Detroit lockers are designed to maximize traction by delivering 100 percent of the torque and power to both drive wheels. They are engineered to keep both wheels in a constant drive mode and have the ability to automatically allow wheel speed differentiation when required.
( 80 )
$1,045.99
Sonnax Flanged Yokes
Sonnax flanged yokes will complete your driveshaft connection. These high performance 6061-T6 aluminum parts are precision-machined to be stronger than the original cast steel yokes, as well as being lighter in weight. Sonnax builds these yokes for exceptional balance and superior craftsmanship, for a show-quality driveline.
( 27 )
$96.41
Richmond Gear EXCel Ring and Pinion Sets
Richmond Gear EXCel ring and pinion sets are manufactured to meet the exacting specifications required by Richmond Gear. The design, tooling, steel selection, and heat-treat recipes are all controlled by Richmond Gear to produce cost-alternative ring and pinion sets. The Richmond Gear EXCel ring and pinion sets offer exceptional value with better-than-OEM quality. Available in a wide variety of gear ratios, the Richmond Gear EXCel ring and pinion sets will give you maximum confidence in your differential.
( 143 )
$161.60
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$565.99
On Sale
Hays Heavy-Duty Flexplates
Hays heavy-duty flexplates for high performance and competition engines are constructed from a thicker-than-stock steel plate. This enables them to withstand the stress of high-stall torque converters and high-rpm engines. While factory stock plates tend to crack around the crankshaft hub when punished under high-torque and rpm conditions, the thicker Hays flexplates can handle the force. These heavy-duty flexplates are supplied with a ring gear that is securely welded in place. All Hays heavy-duty flexplates are zinc-dichromate plated to resist corrosion and SFI-certified under specification 29.1.
( 63 )
$191.95
$172.75
Auburn Gear Select-A-Loc Differentials
Auburn Gear Select-A-Loc differentials maximize your vehicle's traction with on-the-go system engage. These electronically controlled traction-enhancing differentials are selectable lockers offering the traction control of a limited-slip differential and a full-locking differential--all in one! When locker switch is off, the clutch pack activates the limited-slip mode. As torque increases, the separating forces within the differential gears increase, causing the clutch pack to be compressed, in turn providing bias torque to the highest traction wheel. When the locker switch is turned on, electronic current is sent to the electromagnetic coil which locks the axles together. Auburn Gear Select-A-Loc lockers feature a unique cone-clutch design with gearing made from aircraft-quality 9310 heat-treated billet steel for tough-as-nails strength. The lockers operate quietly without any shift fork or pins to line up to change the locker mode. With a limited-slip mode for on/off-road excitement and a true locker mode for the quarter-mile or nasty off-road terrain, Auburn Gear Select-A-Loc differentials deliver superior traction capabilities on the street, at the track, or off-road.
( 10 )
$1,056.50
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$1,279.99
SVL Drivetrain Ring and Pinion Gear Sets
SVL Drivetrain ring and pinion gear sets make it easy to find the right ratio for your application. Engineered and manufactured for all makes and ratios, they deliver the ideal blend of coverage, performance, and value. SVL starts their ring and pinion sets with a computer-generated gear summary. From there, the gearing is forged from alloy steel for optimal hardness; then the gears are cut with the utmost accuracy to ensure the smoothest possible ride—and computer-controlled heat-treating results in extra wear resistance. In the final stage of the process, the ring gear is mated to the pinion through gear lapping, which provides ideal meshing of the gearing. You can count on SVL Drivetrain ring and pinion gear sets to fit and function as expected in your automotive application.
( 30 )
$194.99
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$281.99
Yukon Gear & Axle Crush Sleeve Eliminator Kits
Yukon Gear & Axle crush sleeve eliminator kits replace your crush sleeve with a shim and spacer setup. These kits offer an economical way to enhance your setup and make it more precise. Have you ever over-tightened a crush sleeve? You toss it and start over with a new one. Yukon Gear & Axle crush sleeve eliminator kits remove the hassle—so setting preload is easier. Order the kit designed for your axle model application.
( 69 )
$92.99
Eaton Posi Performance Differentials
Big torque doesn't have to mean big traction problems. Eaton Posi Performance differentials combine carbon friction discs with precision-forged gears to give you great traction, even under higher torque loads. Plus, the carbon friction discs produce smooth, quiet performance for the life of your vehicle.
( 104 )
$750.99
Summit Racing Equipment® U-Joints
Don't ignore the signs! A clunking and clanging noise, intense vibrations at accelerated speeds ... it could be an indication of a failing U-joint. If that's the diagnosis, here is the solution--replace it with one of our Summit Racing Equipment® U-joints. These drivetrain components are engineered from quality materials to meet or exceed OE standards, and are available in applications with forged and case-hardened alloy steel crosses for lasting service life. The bearing cups are case-hardened for strength and durability, and superior seals help keep contaminants out and allow for proper lubrication. Plus, a grease fitting in the cross body allows for easy maintenance. Select your part application and install it to avoid complete U-joint failure--problem solved!
( 32 )
$19.99
Timken Pinion Bearing Races
An old race should never be re-used with a new bearing--no matter how good its condition may appear to the naked eye. Timken pinion bearing races feature premium design, enhanced surface finishes, and are manufactured using quality materials to ensure longer bearing life and excellent antifriction properties. They work as a team with your bearings to keep your gears in motion. Timken bearing races are available as direct-fit OE replacements or for custom applications. Choose pinion bearing races from Timken on your next automotive job. Features include: * Designed to effectively reduce friction * Ultimate load-handling capability * Built for long service life * Meet high performance standards
( 21 )
$10.99
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$14.99
Motive Gear Differential Carrier Shim Kits
Are you setting up a rear-end? These Motive Gear differential carrier shim kits will make the job easier. They come with a variety of shims, so you're sure to find the best fit for your vehicle; plus, they're made of steel for durability. Whether you're installing a new setup or refreshing an old one, you can trust the Motive Gear differential carrier shims designed for your application to make the job a snap.
( 37 )
$17.99
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$59.99
Motive Gear Differential Bearing Kits
Motive Gear differential bearing kits contain everything you need to install your ring and pinion. Available for front or rear axles, the kits are offered for nearly three dozen differential case design applications. Includes: * Front and rear pinion bearing * Pinion seal * Carrier bearings * Pilot bearing (depending on application) * Gear marking compound * Crush sleeve * Pinion nut * Brush * Thread locking compound * Cover gasket or RTV
( 26 )
$92.99
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$209.99
Ford Genuine Parts 4WD Actuators
Ford Genuine Parts 4WD actuators are the perfect-fit replacements to help you fix 4x4 engagement issues. If your actuator is sticking, vacuum will remain applied to your wheel hubs, keeping them disengaged, and leaving you without 4WD. Ford Genuine Parts 4WD actuators will control vacuum and allow engagement, restoring your 4x4 power.
( 2 )
$39.99
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$142.99
Spicer Select U-Joints
Spicer Select solution is simple: to provide quality-built universal joints that are backed by the Dana name you know and trust. Spicer Select U-joints feature journal crosses that are manufactured from high-quality forgings and heat-treated for maximum life. The bearing cups are case-hardened for strength and durability, while the seals are crafted from nitrile rubber for optimum grease retention and contaminant exclusion. These universal joints are engineered for exceptional fit and easy installation to maximize up-time. To keep your vehicle performing at its best, choose Spicer Select U-Joints by Dana.
( 1 )
$35.99
Motive Gear Axle Bearing and Seal Kits
Motive Gear offers axle bearing and seal kits for a variety of applications—including Dana 60, Chrysler 9.25 in., Ford 8.8 in., and Ford 9.75 in. differential case design types. These replacements are manufactured from factory-grade materials and machined to OE specs to ensure proper fit and long-lasting performance. Maintain your drivetrain with components from an industry leader whose products are found in the winner's circle at racing events worldwide.
( 1 )
$99.99
Dorman Driveshaft Bolts
Dorman driveshaft bolts are strong mating points, securing the driveshaft to the axle flange. It is recommended that when servicing the driveshaft that you replace these one-time use parts. Dorman bolts are durable in design and feature a hardened steel construction for increased durability, along with a black oxide coating for extra protection against corrosion.
( 5 )
$12.99
