Availability
Currie 9-inch third members are designed to fit Ford 9-inch applications. The case is made from nodular iron and installed is a Currie TwinTrac® posi differential in 31 spline, or Eaton TrueTrac differential in the 35 spline options. All Currie third members include a big bearing "Daytona" pinion support, are fully assembled, and delivered ready to install.
( 4 )
$1,400.00
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.
( 487 )
$1,166.99
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$1,279.99
Ford Performance Parts 8.8 in. IRS loaded differential housings are improvements to the rear axle of your Mustang. Whether you're replacing the original in your manual or strengthening the cast aluminum model in your automatic, there's nothing better than Ford Performance differential housings to do the job perfectly. Besides, who knows your Mustang better than the maker? These 8.8 in. IRS housings are fully loaded with forged, and CNC-cut gear sets installed. They feature strong cast iron topped with an aluminum differential cover, and, depending on the application chosen, a Torsen or Traction-Lok differential is included. If your automatic sees a lot of track time or your manual has a broken housing, your only choice should be genuine Ford Performance 8.8 in. IRS loaded differential housings.
( 3 )
$1,189.99
Eaton electronic ELocker differentials offer you the best of both worlds. Imagine having the comfort and convenience of an open differential for around town—and the powerful traction of a full-on locker when it's necessary. This is exactly what the Eaton ELockers provide. With the push of a dash-mounted button, you decide when the differential should be fully locked for maximum traction to both wheels, or free to differentiate for the best fuel mileage and tire tread life. Whether you're running a 2WD or 4WD, open or locked, the Eaton ELockers put the driver in total control! Order the carrier designed for your axle model.
( 11 )
$1,299.99
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$1,669.99
Yukon Gear & Axle ring and pinion and differential combos save time and money by including everything you need in one simple part number. Pro Kits feature a premium Yukon ring and pinion gear set, Yukon Master install kit with high-quality Timken bearings, and required small parts to get vehicles back on the road quickly. The gear and install kits include axle bearings and seals. Many of these combo kits include Dura Grip differentials, depending on application. Order the Yukon Gear & Axle ring and pinion gear and differential combo designed to fit your application.
( 3 )
$1,229.99
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$1,647.99
Direct-fit Currie 9 in. rear-end axle housing assemblies have OE mounting points designed specifically for your application. This means that you won't have to spend hours cutting and welding in order to install them. These assemblies are available with disc or drum brakes, axles, bearings, and seals--everything you need to upgrade your rear-end, courtesy of Currie Enterprises.
( 7 )
$1,250.00
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$1,600.00
RCV Performance Ultimate CV axles simply replace your weak axle shafts with a high-strength design. Tests prove they are twice as strong as OEM shafts, and they're just as tough at a straight angle as they are at extreme angles. Even if you have big tires and big power, there are no worries. Ultimate CV axles are low maintenance and operate with a smoothness you can feel--whether off-road or on the street. And they back it all with a "No Questions Asked" limited lifetime warranty. Available for many vehicles, select the RCV Ultimate axle set designed for truck, SUV, or Jeep.
Not Yet Reviewed
$1,099.95
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$1,599.95
A 4x4 and traction go hand-in-hand; however, standard (open) differentials allow each wheel to turn independently to eliminate binding in turns. Off-road, this becomes a problem as engine power takes the path of least resistance—to the wheel with little or no traction. Limited slip differentials offer some improvement, but too often the slipping is not "limited" enough to maintain forward progress. Automatic locking differentials also have disadvantages; noisy when disengaging, they can also upset on-highway driving characteristics. Created to provide traction on demand, without sacrificing highway driving performance, ARB Air Locker differentials employ a 12 V ARB air compressor (sold separately) to pneumatically operate a solid and durable locking mechanism inside the differential. When activated, the Air Locker prevents the differential gears from rotating and the axle shafts from turning independently of each other. With both wheels tied directly to the rotation of the ring gear, the vehicle maintains maximum possible traction at all times. When unlocked, it operates just like a conventional open differential. ARB Air Lockers are available in over 100 configurations for a wide range of vehicles and can be installed in both front and rear axles. Installation should be performed by a qualified differential technician, although no special tools or skills are required, apart from those necessary for fitting a standard differential. ARB also offers three compressor models suitable for Air Locker operation, two of which can be used to inflate tires and operate other equipment. Additional features of ARB Air Lockers include: * Vastly improved traction means less reliance on momentum, reducing the likelihood of vehicle damage * Easy, convenient operation without leaving the comfort and safety of the driver's seat * Ultra durable and extremely strong; only the highest quality materials used in construction * Patented gear technology and 2-piece design ensures optimal locking strength * Forged gears provide superior strength and durability * Incredibly simple, yet effective, design employs minimal moving parts for maximum reliability * Thoroughly tested and proven * Most sold as kits with differential, activation switch, solenoid valve, air line, and bulkhead fittings * Front and rear Air Lockers available for most makes and models * For 4WD and 2WD applications * Easy maintenance; no special additives required * Also offered in ARB Traction Packs that include two Air Lockers, a compressor, and accessories for tire inflation
( 11 )
$1,091.00
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$1,499.95
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 )
$1,025.99
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$1,499.99
GForce Renegade axle shafts offer big league strength and performance at a fair price point. They're direct replacements for your factory half-shafts and are designed for cars with everything from mild bolt-ons to those running superchargers and turbos. CNC-machined from proprietary aerospace billet alloy, Renegade axles feature upgraded spline counts on the axle bar and CV joints—providing more engagement. This allows for larger diameter bars equaling more strength, as well as more travel and increased operating angle over OEM CV joints. GForce Renegade axle shafts are a leap above entry-level, with hand-built assemblies utilizing premium materials and carefully controlled processes. Order the pair recommended for your vehicle application. Features include: * Anti-wheel hop technology—significant reduction during hard launches * Direct bolt-in fit and finish * 31-spline severe-duty CVs * Stronger one-piece CNC-machined inner and outer stubs * Powdercoated axles for corrosion protection * Black E-coat finish on inner and outer stubs to protect against harsh conditions, without impeding spline engagement
( 5 )
$1,199.00
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 )
$1,138.99
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$1,556.99
Yukon Gear & Axle Ultimate 88 axle kits offer maximum strength for the trails! Manufactured from 4340 chromoly, these double-drilled axles eliminate your factory C-clips and convert your housing to a stronger C-clip eliminators. No welding is required--just a little cutting to remove the factory axle bearing seat. Get years of hard use on the trails with Yukon Gear & Axle Ultimate 88 axle kits.
Not Yet Reviewed
$1,017.99
Ford Performance Parts Torsen differentials use a worm gear friction system that will not wear out like conventional clutch-type positive traction differentials. These differentials ensure your engine's power is transferred to the wheels with the maximum traction. The unique torque-sensing ability of the Torsen design, and the smooth engagement of Torsen-style limited-slip differentials, make them the perfect choice for your street, strip, or off-road vehicle.
( 6 )
$1,044.99
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$1,139.99
Want to get back the power and gas mileage that you lost from installing those big tires on your Jeep? Motive Gear makes it easy to re-gear your 4x4 with their ring and pinion gear and installation kit combos. These complete kit combos include front and rear ring and pinion sets, plus front and rear bearing kits, giving you everything you need to re-gear the front and rear differentials in one package. The kits come in a wide range of ratios for most Dana applications. Their quality is the result of years of development, outstanding design, and state-of-the-art manufacturing methods to ensure a perfect fit for an easy install.
( 8 )
$1,024.04
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$1,728.99
Finding the right differential is often an experiment in compromise--spools, lockers, and limited-slips all have their pros and cons. Strange S-Trac differentials use helical gears for optimum strength while retaining smooth operation similar to a posi. Unlike standard limited-slips, there are no cones, springs, or clutches to wear out; the preloaded 35-spline unit's helical gears are constantly adjusting to the conditions, resulting in positive traction even around turns. Under normal conditions they operate like an open differential, but once slippage occurs a force is created between the pinion and side gears which generate friction, slowing the spinning tire and sending power to the one with the most traction. When power is applied, it wedges all the gears together so the wheels will spin in unison. Their surefire grip is especially useful on curves and corners where both tires receive power, as the inner differentiating allows the racer to hit the throttle midway through the corner and set up for the straightaway. The case halves and internal gears of these S-Tracs use high-rated case-hardened steel--with multiple massive pinion gears to control differential action (6 with Dana 60, STR-D3523; 12 with Ford 9 in., STR-N1980). These differentials do not influence vehicle steering, and have no perceived backlash. No special friction modifiers or additives are required. Whether using your vehicle for street/strip, autocross, road racing, circle track, or off-road, Strange S-Trac differentials will pull you through.
Not Yet Reviewed
$1,094.99
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$1,428.99
RCV Ultimate 300M rear axles are available for a variety of applications, including many Jeep and Toyota vehicles from 1990 and up. Here are details for each model: * Model RCV-RAP-JL-32: These rear axles replace your stock 32-spline Jeep JL's weak Dana 44 (OE refers to it as the M220) axle shafts with a high-strength 300M design. Tests prove Ultimate CV Axles to be twice as strong as OEM Jeep JL shafts. Even if you have big tires and big power there are no worries. Axle set includes right and left rear axle shafts. Dual bolt pattern threaded flanges support the stock 5x5 in. bolt patterns in addition to 5x5.5 in. for hub upgraded vehicles. Axles come fully dressed with all the necessary bearings, seals, retainers and studs to complete the package. Black oxide coating is standard. * Model RCV-S0056: This Ultimate 300M Toyota FJ80 rear full float axle set is designed to work with all differential types (OE open carrier, aftermarket lockers, and OE electric locker). They feature an updated shaft design to aid in known OE electric locker issues (with axle twist). The sets can be used with OE std, cable lockers, electric lockers, or other aftermarket locking diffs. Each kit includes a pair of rear 300M axle shafts, drive flanges, dust covers, bolt kit, pins, and snap rings. Fitment: Toyota Land Cruiser FJ80, FZJ80, HZJ80, HDJ80, HDJ81 (all years).
Not Yet Reviewed
$1,149.95
Extra beef for your rock crawler—Longfield axle shaft and Birfield joint kits put the brawn back into your fun. Stock axles and joints just don't have the strength to deal with larger tires and additional horsepower. Longfield kits furnish you with robust 100 percent chromoly components that are critical for you to "make the grade." So, go where you want, run any trail, and adventure with confidence—knowing your rig's equipped with Longfield axle shaft and Birfield joint kits. Order model designed for your vehicle and axle application.
( 7 )
$1,154.85
Trail-Gear Rock Assault True Width Tacoma axle assemblies offer ground clearance to roll over any terrain. Their exclusive design is built with all-new components and state-of-the-art, 3-D digital imaging to ensure that the housings are 100 percent straight and true. The build of these axle housings delivers increased clearances under the axle tubes and differential, as well as increased strength to handle the stresses of heavy loads. They're available in your choice of bare tubes, models with spring perches installed, or a 3-link ready with a panhard bracket. Climb to new heights with the added clearance and strength provided by Trail-Gear Rock Assault True Width Tacoma axle housing kits. Features: * Forged strong 1035 steel knuckle balls—eliminates closed, bent knuckles * 5/16 in. thick 1020 DOM axle tubes—offset above the housing centerline so the inner axles ride near the bottom of the axle tubes, rather than center * Heavy-duty, press-formed 1/4 in. steel plate center section—shaved to create additional clearance under differential * 1/2 in. plate steel differential mounting surface—assurance that studs cannot pull out * Includes both 30-spline chromoly short and long axle shafts
( 2 )
$1,320.04
USA Standard Gear ring and pinion and differential combos save time and money by including everything you need in one simple part number. Quick Kits feature a USA Standard ring and pinion gear set, Master Install Kit with high-quality Koyo bearings, and required small parts to get vehicles back on the road quickly. The gear and install kits include axle bearings and seals. Many of these combo kits include Dura Grip differentials, depending on application. Order the USA Standard Gear ring and pinion gear and differential combo designed to fit your application.
( 4 )
$1,191.89
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$1,701.89
Yukon Gear and Axle offers an extensive line of general replacement and high performance axles for passenger car, truck and SUV applications. Yukon Gear & Axle 4340 chromoly axles provide up to 50 percent more strength than stock axles … critical for extreme performance applications with large tires, high torque and high horsepower. These 4340 axles are manufactured using the latest technologies and the highest quality materials for long life in off-road, street and track use. Yukon Gear & Axle 4340 chromoly axles are offered in complete kits or individually.
( 36 )
$1,050.99
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$1,592.99
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.
( 131 )
$1,073.99
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$1,298.99
Moser Engineering US Gear Pro Series ring and pinion gear sets are CAD-designed, CNC-machined, and computer control heat-treated to ensure you receive the highest quality and best performing components on the market. These Pro Series street/strip gears by Moser are capable of handling most applications. Racing professionals and performance enthusiasts trust Moser US Gear products. They set the standard for high-quality gear sets that are manufactured to the highest material and process standards. Select the size, ratio, and other gear options recommended for your axle application.
Not Yet Reviewed
$1,500.00
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$1,575.00
Powertrax Grip Pro traction systems are the latest design in differential technology. They combine the smooth operation of a limited-slip differential, with the strength of a fully machined, forged steel case. Using 3x2 spiral gear engineering, the Powertrax Grip Pro delivers progressive and variable traction. Based on throttle input, you are in control of how much traction is applied. These differential systems are great for use where finesse is just as important as brutal traction. On the road or track, in the rain or snow, Grip Pro is a winner! The systems come fully assembled and there are no friction plates—so you can use any gear oil you like, including full synthetic and racing lube.
( 21 )
$1,015.99
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$1,372.99
Yukon Gear & Axle ring and pinion gear and installation kit combos are complete packages that include front, rear, or front and rear ring and pinion sets, along with the most complete master overhaul kits on the market—giving you everything needed to re-gear the front and/or rear differentials in one package. Conceived to handle some of the harshest conditions, these combos utilize the latest design and manufacturing technologies to afford you quiet running gear that's strong and easy to set up. The included Yukon master rebuild kits undergo extensive research to ensure a perfect fit and hassle-free install with the very best components. Order the combo designed to fit your application.
( 12 )
$1,013.99
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$1,538.99
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