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MERCURY MOUNTAINEER Transmission & Drivetrain

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Results 1 - 24 of 31

Silver Sport Manual Transmission Bellhousings

Silver Sport manual transmission bellhousings offer aluminum construction and an ideal match for your street or strip tranny. SST bellhousings are available for popular GM, Ford, and Mopar applications, and are perfect for powertrain builds, restorations, and swaps.

3.86 out of 5 stars ( 7 )

$279.95

$419.50

Motive Gear Performance Ring and Pinion Sets

Motive Gear Performance ring and pinions are perfect for dedicated racing or off-road vehicles. Their gear sets are made from first-run steel, they never use recycled metal. This allows Motive Gear Performance ring and pinions to handle the extreme torque from high-horsepower racing engines. Extensive engineering, computer-controlled heat treatment, superior strength, quality and the widest selection of racing gear ratios, makes Motive Gear Performance ring and pinions the clear winner! Engineered to the highest standards, every Motive Gear Performance product goes through rigid quality control processes in their in-house lab. Motive Gear Performance also offers a lightweight alternative to standard ring and pinion gear sets. Their AX Series ring and pinions are designed to increase horsepower and efficiency by removing rotating weight. Professional race teams have used custom-lightened drivetrain parts for years, resulting in faster times and more wins. The AX Series gears from Motive are lightened during the manufacturing process; this results in gear sets that have been engineered, not modified. Computer-controlled heat treatment, index tooth spacing, and CNC machining all go into AX Series performance gear sets. Motive Gear Performance: What the pros run!

4.58 out of 5 stars ( 195 )

$312.99

$525.71

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.

4.36 out of 5 stars ( 136 )

$427.00

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.

4.44 out of 5 stars ( 283 )

$277.71

$532.99

USA Standard Gear Ring and Pinion Sets

USA Standard Gear ring and pinion sets are high-quality and precision-machined replacements. They're offered for a wide variety of common and hard-to-find applications, differential case designs, and ratios. The right choice adds confidence to your install; select the USA Standard ring and pinion set recommended for your vehicle.

3.71 out of 5 stars ( 49 )

$267.99

$418.99

Powertrax Lock-Right Lockers

Powertrax Lock-Right and performance lockers' straight-line performance is equal to a solid spool axle, yet they automatically unlock to allow for full differentiation in turns. They also reduce the excessive noise, tire wear, and drivetrain damage associated with other lockers. Powertrax lockers replace the spider gears in your differential carrier without affecting your ring and pinion settings. The whole job can be done in your driveway with common hand tools in a couple of hours. A carrier is not included.

4.29 out of 5 stars ( 146 )

$319.99

$438.99

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.

4.21 out of 5 stars ( 141 )

$254.89

$297.14

On Sale

Hays Billet Steel Flywheels

Hays steel flywheels are engineered to handle extreme-duty applications and designed to take the punishment of today's high-horsepower engines. They are CAD-engineered and precision CNC-machined to strict tolerances. Available in weights up to 50 lbs. for specialized applications, most Hays flywheels are drilled with both the Borg and Beck and Long-style clutch patterns. Upgrade to a precision-machined and engineered Hays billet steel flywheel. Features include: * SFI-approved--legal for use in racing classes that require SFI certification * CNC-machined from certified billet steel for maximum strength and durability * CAD-designed for optimum performance and reliability * Offered in internal, external, or neutral (zero) balanced versions * Available for a wide variety of engines Note: When choosing a flywheel, remember that a heavier flywheel stores more energy. A heavy car requires more power (or inertia) to launch without bogging the engine and needs a heavier flywheel. Lighter flywheels create less inertia at launch, but will accelerate faster through the gears.

4.6 out of 5 stars ( 30 )

$499.95

Richmond Gear Ring and Pinion Sets

Richmond Gear is the leading manufacturer of professional-quality, high performance ring and pinion sets. The superior quality of these gear sets is the result of years of racing development, outstanding design, and state-of-the-art manufacturing methods. Richmond also offers these gear sets in a lightened version for the weight-conscious enthusiast. Their lightened ring and pinion sets feature an outstanding rotating weight loss of up to 6 lbs., ground pinion threads for trouble-free installation, and a special heat treatment for improved strength.

4.54 out of 5 stars ( 308 )

$415.66

$572.99

Yukon Gear & Axle Ring and Pinion Sets

Yukon Gear & Axle ring and pinion sets are strong but quiet performers. Designed to handle some of the harshest conditions, these sets utilize the latest design and manufacturing technologies to afford you a smooth running gear that's durable and easy to set up. Yukon ring and pinions are available in hundreds of size, ratio, and axle model options. Whether you're on the street, off-road, or at the track, you'll experience unrivaled power and gear performance. Order the model recommended for your application.

4.42 out of 5 stars ( 172 )

$302.99

$523.99

USA Standard Gear Spartan Limited Slip Differentials

Increase the traction capability of Dana 30 front differentials with Spartan Helical LSDs by USA Standard Gear. Compared to other types of limited-slip differentials (LSDs) or Positraction units, these mechanisms provide smoother engagement, quieter operation, and deliver no-worry, maintenance-free performance. Get better linear traction when you order the USA Standard Gear Spartan limited-slip differentials designed for your Dana 30 applications!

Not Yet Reviewed

$383.99

USA Standard Gear Spider Gear Sets

USA Standard Gear spider gear sets offer OEM-quality at a low price. They're available in dozens of configurations for applications from 1955 and up. Depending on the kit you choose, your selection may include all or a combination of side gears, pinion gears, spider gear thrust washers, cross pin shaft, cross pin bolt, and/or roll pin. Restore the performance of your differential with the quality of a USA Standard spider gear set.

4.0 out of 5 stars ( 16 )

$299.99

Yukon Gear & Axle Spider Gear Kits

Yukon Gear & Axle spider gear kits offer better performance for your differential. Utilizing high-quality materials and better-than-OE design, Yukon spider gears get you through turns with the traction that you need. The kits are available in a variety of carrier styles and are compatible with dozens of axle models, front and rear. Improve your differential with the addition of a Yukon Gear & Axle spider gear kit.

4.38 out of 5 stars ( 69 )

$297.99

$370.89

Powertrax Grip LS Traction Systems

Powertrax Grip LS traction systems are the latest design in differential tech upgrades. They combine the smooth operation of a limited-slip differential, with the strength of a fully machined case. These systems use carbon fiber and steel friction plate technology, delivering streetable and consistent traction. They arrive completely assembled--and because there are friction plates on machined internal gears, they are fully rebuildable. The carriers are the ideal solution for just about any light truck, sport utility, and muscle car on the road today.

4.2 out of 5 stars ( 5 )

$463.99

Yukon Gear & Axle Differential Carriers

Yukon Gear & Axle offers differential carriers for a wide range of applications. Yukon uses top-quality materials and the latest manufacturing technologies to produce strong, durable carriers that you can depend on for proper traction. These aftermarket units are available in a variety of styles—such as limited-slip, open, Traction-Lok, and locker—for fitment on dozens of axle models and vehicle apps.

4.31 out of 5 stars ( 13 )

$433.99

Yukon Gear & Axle Differential Clutch Sets

Yukon Gear & Axle differential clutch kits are manufactured with better-than-OE materials for off-road and recreational use—and they fit multiple applications. If you're looking for the best performance from your off-road vehicle, order a Yukon differential carrier clutch set today.

4.36 out of 5 stars ( 22 )

$378.99

$439.99

Dorman Driveshafts

Dorman driveshafts are designed to replace your factory originals with no modifications. They are manufactured from quality materials and have the stock connections for an easy bolt-in fit. The driveshafts are available in various lengths, diameters, and materials for many auto, truck, and SUV applications.

4.49 out of 5 stars ( 318 )

$345.95

$500.95

Yukon Gear & Axle Differential Covers

Yukon Gear & Axle offers a full line of differential covers to suit your front or rear applications. These replacement covers protect your gears, keep lubricating fluid where it's needed—and on some styles, they offer added cooling and/or strength. Their large selection affords you options of materials, sizes, and finishes to get exactly what you need. Order the model recommended for your axle, differential case design, and engine specifications.

3.97 out of 5 stars ( 66 )

$387.99

Yukon Gear & Axle Master Overhaul Kits

Yukon Gear & Axle master overhaul kits are what you need for a successful differential rebuilding. All of the high-quality parts that you need are provided to do your job right. Yukon master kits go through extensive research to ensure a perfect fit and hassle-free install utilizing the best components, including Timken bearings and races! Choose from their huge selection of kits to meet your replacement application. Yukon Gear & Axle master overhaul kits may include: * Pinion bearings * Carrier bearings * Pinion seal * Crush sleeve or preload shims * Pinion depth shims * Carrier shims (varies by application) * Gear marking compound and brush * Pinion nut * Baffles and slingers (varies by application) * Gasket and/or silicone * Ring gear bolts (for application) * 20-page instruction manual

4.66 out of 5 stars ( 103 )

$334.99

$474.99

Powertrax No-Slip Traction Systems

These Powertrax no-slip traction systems are the latest design in traction-adding differential technology. They combine the smooth operation of a limited-slip differential with the traction performance of a locking differential. A precise synchronization mechanism eliminates the ratcheting sounds typical of other locking differentials. Special gear and spring designs reduce the backlash and, therefore, the driveline windup. Only ultra-strength material that is 67 percent stronger than titanium is used. Installation is simple because no ring and pinion setup is required. In addition, no special tools or oils are needed. Step-by-step, model-specific instructions are provided with every kit.

4.06 out of 5 stars ( 81 )

$362.99

$544.99

Standard Motor Automatic Transmission Control Solenoids

These Standard Motor automatic transmission control solenoids are designed to replace faulty factory units to keep your transmission shifting smoothly. They meet or exceed OEM specifications and are available for a variety of applications.

3.86 out of 5 stars ( 14 )

$470.99

Dorman Ring and Pinion Sets

Dorman ring and pinion sets are your OE solution for fit, function, and value. They offer quality manufactured sets for many applications. Replace your worn and whining ring and pinion with Dorman OE replacement parts.

4.33 out of 5 stars ( 6 )

$298.99

$321.99

USA Standard Gear Master Overhaul Kits

USA Standard Gear master overhaul kits have everything you need to properly rebuild the differential in your vehicle. They let you finish your ring and pinion gear installation or axle rebuild with confidence. These install kits offer a lower price alternative when costs must be kept down. Most USA Standard Gear master overhaul kits include: * Pinion bearings and races * Pinion shims * Carrier bearings and races * Carrier shims * Crush sleeve (if applicable) * Slingers (where used) * Pinion seal and nut * Ring gear bolts * Cover gasket or gasket maker (RTV) * Marking compound with brush * Thread locker

4.06 out of 5 stars ( 31 )

$313.99

$454.99

Yukon Gear & Axle Differential Carrier Cases

Yukon Gear & Axle differential carrier cases offer the strength and quality you demand for your ride. Available for many axles and ratios, these cases are constructed from first-rate materials to strict standards, ensuring durable, reliable performance.

4.38 out of 5 stars ( 21 )

$304.99

$436.99

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