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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.
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$623.99
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$639.99
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.
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$545.99
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$601.99
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.
( 118 )
$158.99
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.
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$118.99
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$192.99
On Sale
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.
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$599.99
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$641.99
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.
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$135.99
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$608.99
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!
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$403.99
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$656.99
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 )
$858.99
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.
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$191.98
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$404.99
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.
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$15.99
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$24.99
Spools are an alternative to a locker for traction and performance enhancement. Motive Gear mini spools are a favorite of off-road competitors. A differential with a spool setup delivers equal power and traction to both left and right-side rear wheels. Spool solutions are less expensive than lockers and weigh less. Motive Gear offers a full line of mini spools in the most popular applications for differential modification.
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$102.99
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$116.99
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.
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$696.99
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$777.99
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.
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$565.99
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$698.99
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.
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$173.99
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$232.99
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.
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$390.79
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$642.99
Replace the internal components of your differential with Richmond Gear mini-spools. They lock your axles together for even power distribution to both driven wheels. They're CAD/CAM-designed, CNC-machined from 4140 alloy-steel forgings, and heat-treated to aircraft standards. Mini spools are recommended for dirt track use only.Richmond Gear has been supplying racers for more than 80 years.
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$108.99
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$141.99
Yukon Gear & Axle differential carrier bearings are low-cost replacements for Positraction or locker upgrades. They bearings are made of steel and most include races and shims. Order the kit recommended for your axle application.
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$115.89
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$127.99
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.
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$368.99
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$597.99
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.
( 36 )
$23.99
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
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$8.99
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$14.99
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.
( 67 )
$55.89
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.
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$122.99
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$288.99
Yukon Gear & Axle offers top-quality small parts, like these replacement crosspin bolts, to help you complete your differential repair, rebuild, restoration or upgrade. They're manufactured from hardened steel for maximum durability and engineered to fit specific axle model applications. For all your differential part needs and more, look no further than Yukon Gear & Axle.
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$9.89
Spicer Drivetrain Products differential cover bolts are available in a variety of steel bolts applications to fit Dana, Ford, GM, Chrysler, and many other differential covers. Order the bolts designed for your axle model application.
Not Yet Reviewed
$3.99
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