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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.
( 492 )
$657.95
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$790.99
Ford Performance Parts ring and pinion sets are engineered, manufactured, and tested for maximum performance. These ring and pinion sets are finished in a black oxide coating for corrosion resistance, and are available in many different ratios to fit a variety of Ford differentials.
( 130 )
$190.99
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$243.99
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.
( 336 )
$102.99
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$249.99
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
Ford Performance Parts Traction-Lok differentials optimize your vehicle's traction by transferring the power to both rear wheels. These limited slip differential units use heavy plate-style clutches to ensure your engine's full power potential makes it to the ground. Perfect for the street or strip, these differentials will accommodate the anti-lock brake exciter ring found on most late model vehicles.
( 37 )
$220.99
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$352.99
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.
( 94 )
$139.99
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$170.99
Ford Performance Parts axle girdles are a great way to strengthen the rear-end of your car. Made of lightweight aluminum, they incorporate load bolts that provide additional support for differential bearing caps. Because they reduce the amount of flex in your differential while under load, they significantly reduce bearing wear and chipped teeth on the ring and pinion. They provide increased ring and pinion gear life and are a definite must for all racing and high performance street cars. Additional information: * Available for a variety of applications, including some independent rear suspensions * Replaces OE rear cover * Covers with cooling fins and machined for differential cooler pickup and return fittings recommended for road racing or extended high-speed/high-temperature applications * Models equipped with differential coolers may require modifications * Check exterior clearance to chassis/suspension
( 77 )
$252.99
Currie 9 in. crate rear end assemblies offer a direct-fit, bolt-in solution for most common car, truck, and Jeep platforms. They feature larger spline axles, heavy-duty components, and internals from leading manufacturers. These axle assemblies are built to exacting standards matching factory specifications for suspension mounting points, pinion location, overall axle width, and wheel bolt pattern for hassle-free installation. Prior to shipping, skilled craftsman meticulously assemble essential parts to deliver years of trouble-free operation for your vehicle. They offer a broad range of gear ratios, performance differentials, or even a spool—if that's your thing. You'll be ready in no time for cruising, racing, off-roading, or just daily driving with Currie 9 in. crate rear end assemblies. Order the kit designed to fit your specific model.
( 4 )
$4,000.00
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$4,700.00
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.
( 134 )
$426.99
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$619.99
A must for your 2015 and later model Mustang—Ford Performance Parts half shaft upgrade axles deliver a robust drivetrain solution to support the higher torque loads of your power-producing muscle car. These better-than-stock performance shafts feature larger diameters, proprietary materials, and CNC-machining—which makes them a stronger and healthier option for your high-powered, sticky-tire-running machine. And with their anti-wheel hop technology, your Mustang will surely put its power to the pavement. Factory half shafts can't handle the additional stresses of your modified ride; for optimum performance, install the Ford Performance Parts half shaft upgrade axles designed for your submodel.
( 2 )
$2,274.99
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.
( 41 )
$554.97
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$907.99
Simplify your ring and pinion project. Ford Performance Parts ring and pinion installation kits include everything you need for changing your ring and pinion gear. All components are high-quality genuine Ford parts to ensure a hassle-free installation.
( 61 )
$55.99
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$161.99
When you need strength for your custom axle job, Yukon Gear & Axle cut-to-fit axle shafts should be your choice. Built to last, these Yukon axles are offered in hardcore 4340 chromoly and 1541H alloy steel. Built to perform, they offer more strength than stock styles and come in your choice of cut-to-fit/cut-to-length designs. Choose quality-built strength for your application with Yukon Gear & Axle cut-to-fit axle shafts.
( 33 )
$319.99
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$337.89
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 )
$1,550.00
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!
( 195 )
$309.99
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$694.99
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.
( 308 )
$283.37
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$576.99
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 )
$162.99
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$564.99
Yukon Gear & Axle C-clips keep a secure hold on your axle. These little steel C-clips are mighty important, so they're precision-crafted to stay in the groove and prevent your shaft from sliding out. The replacement clips are available for fitment on more than a dozen axle models. Trust Yukon C-clips for differential maintenance.
( 46 )
$10.99
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$11.89
Summit Racing™ offers Street-Strip Performance clutch kits for hundreds of cars, trucks, and vans. They're ideal for use with moderate engine modifications, including intake and exhaust upgrades, camshaft and cylinder head work, and engine management programming. These kits provide a heavier pedal effort than stock, along with improved holding capacity, making them excellent high performance replacement clutches. Order the size and options recommended for your vehicle. Additional details: * Can accommodate up to 500 hp * Dual-faced organic and ceramic disc for smooth engagement with exceptional holding capacity * Kits include a pressure plate, disc, throwout bearing (unless specified otherwise), and alignment tool
( 5 )
$315.99
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$398.99
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 )
$156.99
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Axles are important components in your drivetrain. When you need to replace a bad axle, choose Summit Racing™ direct fit axle shafts. These axle shafts are designed to equal or better your OEM replacements and beat outrageous dealer pricing. Manufactured from 1541H steel, these strong axle shafts come with wheel studs, bearings, and seals to finish the job right. So, if you've got an axle to replace, team up with Summit Racing™ and our direct fit axle shafts for an affordable, winning solution.
( 264 )
$247.99
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$422.99
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
( 102 )
$166.99
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$474.99
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.
( 55 )
$14.99
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$38.99
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 )
$138.99
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$239.99
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