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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.
( 501 )
$1,013.99
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$1,213.99
Summit Bucks
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.
( 12 )
$1,473.99
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$1,554.99
What kind of hidden performance does your vehicle possess that's ready to be unleashed? Spicer Drivetrain Products differential carriers supply the power for you to find out! You can increase your off-road traction, maintain streetability, and get ready to rock and roll in your truck or Jeep with the selection of carriers offered by this legendary manufacturer. Spicer goes above and beyond so your rig can do the same! Order the model and options recommended for your vehicle.
( 37 )
$1,021.99
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$1,094.99
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 )
$1,153.99
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$1,220.99
Manufacturer Rebate
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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$1,026.99
ATI Performance automatic transmission drums eliminate the need for steel bushings and sleeves that can expand under heat and come loose, ultimately causing transmission failure. They come equipped with Torrington bearings and are designed to triple clutch life and lower ETs.
( 10 )
$1,074.99
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$1,159.99
Street Master torque converters are designed for the driver who is looking for a competitive advantage. By raising the stall rpm, these converters will completely eliminate slow, sluggish starts. Recommended for stock to slightly modified engines for maximum performance, they'll allow the engine to idle smoothly when the car is in gear. All stall speeds are approximate ratings for fresh big block engines. Small blocks will vary 300 to 500 r.p.m. lower.
( 234 )
$1,024.99
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$1,329.99
On Sale
If your diesel pickup truck has major power, or you consistently tow heavy loads, FTI Performance Diesel BA-3 Series torque converters are for you. With three disks, CNC-ported stators, and 4340 turbine splines, strength and performance are built in. Their billet front covers, furnace-brazed and TIG-welded fins, and heavy-duty sprag modifications combine for impressive units. FTI has tested these converters under extreme conditions, ensuring they'll stand up to your towing, driving, and performance racing needs. BA Series converters provide more torque multiplication, lower transmission temperatures, improved acceleration—and, when you can keep your right foot under control, better fuel mileage! Whether you drive a Cummins, Powerstroke, or Duramax, FTI Performance Diesel BA-3 Series torque converters put the power to the ground.
Not Yet Reviewed
$1,249.00
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$1,499.00
$1,124.10
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$1,349.10
On Sale
Hays Twister Full Race Torque Converters feature a custom-designed anti-balloon plate to stop any converter ballooning and swelling in racing situations. These torque converters are designed for use with a trans-brake and great for power adders such as nitrous, superchargers, and turbos. They're available with various RPM stall speed offerings to accommodate any mixture of modifications—including higher compression ratios, aftermarket camshafts, aftermarket cylinder heads, lower gear ratios, and vehicle weight loss. Additional product features: * All Full Race Series converters are built, tested, and proven to support up to 1,000 hp * Designed to handle the extreme shock and abuse of trans-brakes, nitrous oxide, superchargers, and turbochargers * State-of-the-art spray welding process is used in select areas. Spray welding provides clean, strong, and consistent fusion while also increasing strength through hardening from higher process temperature * Each converter is hand-built and inspected in every step of assembly to ensure top-of-the-line quality * All Hays torque converters are internally welded, compared to brazing. Testing has shown welding provides longer converter life while also enhancing consistency * Heavy-duty Torrington bearings are used for greater strength and durability * Stators are chosen with high-flow vents and channels to promote cooling in heat-producing higher horsepower applications * Increased horsepower and acceleration due to a weight-saving, one-application design. Almost all Hays converters are built for one application to reduce weight, compared to a multi-bolt pattern converter * Full Race Series torque converters are offered in several different stall speeds for popular automatic transmissions.
( 1 )
$1,649.95
$1,049.95
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$1,483.95
Clearance
The downsizing of modern passenger car engines enables reduced fuel consumption and CO2 emissions, but can also increase rotational irregularities and natural vibrations. Torsional vibrations transmitted to other components in the drivetrain diminishes comfort and may even lead to component damage, therefore effective vibration damping is essential. LuK dual mass flywheels (DMF) reliably dampen torsional vibrations in the powertrain and ensure high gearshift and driving comfort in all speed ranges. Unlike a conventional flywheel, DMFs consists of two masses which are mounted to rotate against each other. A damping system in the form of arc springs is integrated to almost completely absorb the torsional vibrations of the engine. Precisely matched to the respective vehicle, each LuK DMF enables low-speed driving and ensures lower fuel consumption, as well as reduced emissions. Order the proper size for your vehicle.
( 12 )
$1,013.99
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$1,209.99
Errrr, bang! Clunk clunk clunk. Very few parts last forever, especially those rotating at a high rate of speed. Spicer Drivetrain Products ring and pinion gears are perfect for replacing worn or damaged gears, changing ratios, or when refreshing the differentials. They hob and shave the gears for longevity with minimal mating stress, combine modern designs and materials including heat-treating and shot-peening to maximize life, and use high-grade steel for consistency and exceptional durability. Each gear set meets or exceeds Dana's standards for OEM equipment. Whether you need lower, higher, or the same ratio gears, look into Spicer Drivetrain ring and pinion gears with installation kit, available for hundreds of applications.
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$1,090.99
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$1,464.99
On Sale
FTI Performance Diesel Extreme Series torque converters deliver the strength and reliability you need. With a billet aluminum lockup piston and front cover, CNC-ported stators, and heavy-duty sprag modifications, these units are ready to rock. They provide more torque multiplication, lower transmission temperatures, improved acceleration, and better fuel mileage. Their triple disks add excellent reliability, while six pads add strength to the 6-bolt mounting system. Whether you're towing, cruising, or racing, trust the strength of FTI Performance Diesel Extreme Series torque converters. Order the model recommended for your transmission application.
Not Yet Reviewed
$1,395.00
$1,255.50
Tow Master series torque converters from Hughes Performance are designed to increase bottom-end pulling power in your tow vehicle without sacrificing top-end efficiency or lockup. Because they offer your vehicle more power with less effort, mileage can be increased by as much as 1-2 miles per gallon. Recommended for slightly modified engines, these Tow Master converters help you get the job done. All stall speeds are approximate ratings for fresh big block engines. Small blocks will vary 300 to 500 rpm lower.
( 25 )
$1,024.99
TCI 4L60E/4L65E bolt-together torque converters feature a triple-disc lock-up configuration and a bolt-together design that allows for easy disassembly. Removing the billet front provides access to the entire lock-up assembly, turbine, stator, and bearings for servicing or restalling for future vehicle modifications. To further enhance strength, TCI has included both a precision-ground billet impeller hub and billet front that is CNC-machined to reduce ballooning, while the billet turbine hub, billet lockup piston and billet clutch hub are pre-hardened. These patent-pending converters use a triple-disc lock-up clutch that utilizes woven carbon frictions designed to withstand the punishment of continuous slip lock-up control. The effective diameter of the clutch in conjunction with the triple-disc configuration provides for significantly higher torque capacity over the stock clutch. The lock-up clutch is attached to an industry-exclusive self regulating clutch hub which hydraulically modulates the apply pressure to allow for the smoothest engagement of any 4L60E/4L65E converter on the market. Additional benefits include: * Bolt-in modification with no tuning required * Billet, bolt-together, self-servicable, enabling you to easily change your stall speed right at home * Fully furnace-brazed, computer balanced, and hand assembled to precise tolerances * Premium roller bearings and HDT (Heat Dissipating Technology) coating which enables lower operating temps and more efficient operation
Not Yet Reviewed
$1,364.95
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.
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$1,154.99
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$1,749.99
On Sale
Clearance
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.
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$1,234.99
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$1,369.99
$1,111.49
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$1,232.99
On Sale
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.
( 137 )
$1,225.99
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$1,298.99
$1,042.09
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$1,104.14
On Sale
BD Diesel TorqForce is a no-compromise converter for high-performance street and towing applications.They are specifically designed to handle high-torque and high-load situations. TorqForce characteristics offer billet steel covers that do not flex and provide better heat distribution from clutch friction, installed drain plugs for ease of maintenance, new turbine hubs welded in, furnace-brazed fins and stators, and Torrington bearings--not plastic thrust bearings. All this and more gives TorqForce the ability to multiply torque at low engine rpm to get your rig moving plus, provide lock-up clutch holding power during peak demand. Get top towing performance and enhanced street drivability with better fuel economy from BD Diesel TorqForce performance converters.
Not Yet Reviewed
$1,294.95
$1,165.46
On Sale
Clearance
Need traction? Zip! You've got it with Yukon Gear & Axle Zip lockers! With on-demand traction, these lockers offer an air-operated design that allows you to switch from an open differential to 100 percent lockup when you need it. Theses Yukon Zip lockers are the ultimate in driver selectability for the right traction, on-road and off. Built from forged cases with 4320 chromoly internals for added strength, they work with a variety of air-delivery systems and are assembled in the USA. Do you need gripping power--now? You have the control with Yukon Gear & Axle Zip lockers.
( 1 )
$1,369.99
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$1,571.99
$1,164.49
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$1,336.19
On Sale
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.
( 13 )
$1,193.99
$1,014.89
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