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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.
( 499 )
$724.99
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 )
$609.99
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$750.99
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.
( 283 )
$164.99
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$761.99
Richmond Gear Pro Gear ring and pinion sets take it a step further. The gear sets are designed for race use only where hard launches and severe heat cycling occurs. They're made from a softer, more malleable 9310 steel alloy to be more resistant to breakage under harsh racing conditions. These gears feature an outstanding rotating weight loss of up to 6 pounds, ground pinion threads for trouble-free installation, and a special heat treatment for improved strength.
( 44 )
$748.99
Richmond Gear complete ring and pinion installation kits include Grade 8 ring gear bolts, bearings, seals, shims, marking compound, thread-locking compound, and silicone sealer. To ensure proper fitment, order the kit designed for your make/model application.
( 212 )
$170.99
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$290.99
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.
( 97 )
$127.99
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$228.99
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.
( 142 )
$164.89
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$535.99
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.
( 57 )
$15.99
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$35.99
You've improved your reaction time and now it's time to inform your competition. Proform Perfect Launch differential covers state the facts with their logo machined on the raised reinforcing surface. These rear-end covers are made of lightweight but tough aluminum and have been specifically designed to add strength to the rear housing case, particularly during heavy torque situations. Precision-milled and painted black, these Perfect Launch covers include two bolts to stabilize bearing main caps, two magnetic drain plugs, and mounting bolts. You can lose a little weight in your rear-end and send a message to your competition with Perfect Launch reinforced differential covers from Proform.
( 120 )
$161.99
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 )
$1,399.95
Unleash the performance in your vehicle with Spicer Drivetrain Products ring and pinion gears! They're engineered to meet the specific original equipment standards of Dana axles, delivering a perfect fit with less noise, vibration, and harshness. All Spicer ring and pinions are built to the latest Dana designs—which include premium heat-treat processes and optimal tooth profiles, plus high-grade steel to achieve maximum durability. Even in the most demanding conditions, Spicer ring and pinion gears provide quality and unparalleled performance to genuine Dana axles. Order the set designed for your specific axle model application.
( 13 )
$324.99
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$1,039.99
Moser Engineering replacement alloy axle shafts feature high-quality materials that can stand up to everyday use. They use the finest alloy for these replacement shafts, giving you a custom alloy shaft that has been induction heat-treated, 100 percent magna-fluxed, and has a hardened bearing seat for years of worry-free use. Available for passenger car, truck, and SUV applications, Moser Engineering replacement alloy axle shafts are the perfect fit for your vehicle.
( 56 )
$335.00
Summit Racing™ Positraction differential carriers deliver aggressive, yet smooth, controllable traction. Our carriers feature nodular iron cases, forged steel internals, strong teeth—and they're fully rebuildable. We offer fitments for dozens of axle models. Whether replacing or upgrading, Summit Racing™ Positraction differential carriers will put power to the pavement, providing the confidence and performance you need.
( 49 )
$684.99
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$904.99
Manufacturer Rebate
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.
( 147 )
$449.99
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$775.99
Make sure that the job is done right with Timken differential carrier bearings. You can trust Timken to supply you with bearings manufactured with technology-driven processes to the most stringent of thresholds and manufacturing tolerances. Look to Timken's differential bearings to provide you with the confidence that you need when completing your ring and pinion installations.
( 47 )
$20.99
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$24.99
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.
( 172 )
$480.99
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$569.99
Yukon Gear & Axle Grizzly lockers offer fierce power! These robust lockers are the ultimate mechanical locking differentials, replacing your entire carrier assembly. Yukon Grizzly lockers feature forged cases with 8620 internals and a patent-pending internal locking mechanism for maximum strength. Assembled in the USA, these lockers will provide 100 percent power to both your tires, while still allowing for disengagement while negotiating turns. Whether your application is for the street, off-road, or drag racing, Yukon Gear & Axle Grizzly lockers will have your rig roaring with performance.
( 22 )
$472.00
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.
( 309 )
$443.99
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$725.99
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.
( 338 )
$127.99
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$366.99
Are you struggling for traction, or just have some terrible noise coming from the GM 12-bolt in your truck? Hurst limited-slip differentials offer great traction and strength but are not overly aggressive for the street. These differentials are 4-spring, composite, clutch-style, limited-slip carriers with internal gears machined from forged 4320 steel and stronger teeth. Get rid of that old open differential and upgrade to a limited-slip unit from Hurst. Choose the best gear ratio for your truck. Key features: * Fits 12T GM with 30-spline axles * Composite clutches for great drivability * 4320 chromoly spider gears for ultimate durability * Gears are cut to provide the strongest teeth possible in any terrain
( 2 )
$649.95
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$677.95
Are you tired of piecing kits together to install your ring and pinion? Motive Gear Super ring and pinion installation kits include all of the necessary components to start your installation. Order the Motive Gear Super ring and pinion installation kit designed to fit your application. Kits may include: * Standard front and rear pinion bearings * Pinion seal * Standard carrier bearings * Ring gear marking compound * Crush sleeve * Pinion nut * Brush * Loctite/RTV * Cover gasket (depending on application) * Ring gear bolts * Pinion shims * Carrier shims
( 67 )
$157.99
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$162.99
Spicer Drivetrain Products front axle stubs are available for a range of applications. These quality-built steel components fit both right and left sides. When you need replacements, these front axle shafts offer a premium, competitively priced option from a name you know and trust—Spicer.
( 8 )
$121.99
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 )
$21.99
OER rear axle/transmission ventilators are reproductions of the original equipment used by GM on a multitude of applications from the 1950s through today. These differential vents can be utilized for rear axle housing, automatic transmissions, the front transfer case of 4x4 models, and fuel tank evaporator canisters that have a 3/8 in. hole for a ventilator.
( 22 )
$6.99
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