Performance & Replacement Transmission & Drivetrain Parts

Building awesome horsepower is only part of the story. You need to deliver all that power to your car or truck’s wheels! We’ve got torque-hungry high performance automatic...

Building awesome horsepower is only part of the story. You need to deliver all that power to your car or truck’s wheels! We’ve got torque-hungry high performance automatic and manual transmissions for street and strip applications, torque converters and clutch sets, flexplates and flywheels, plus limited-slip differentials, spools, lockers, ring and pinion sets, driveshafts, U-joints, axles, bearings, C-clip eliminator kits, transfer cases, shift kits, and rebuild kits. We also have a wide selection of trans-brakes, shifters, cables, and accessories—everything you need to put the power to the ground, Summit style.

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Results 1 - 24 of 218

Dorman Driveshafts

Dorman driveshafts are designed to replace your factory originals with no modifications. They are manufactured from quality materials and have the stock connections for an easy bolt-in fit. The driveshafts are available in various lengths, diameters, and materials for many auto, truck, and SUV applications.

4.51 out of 5 stars ( 329 )

$344.99

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$3,014.99

Dorman Automatic Transmission Torque Converter Lock-Up Solenoids

Dorman automatic transmission torque converter lock-up solenoids are engineered to precise specifications and designed to match the fit and function of the original equipment solenoid on specified Subaru vehicles. On certain Subaru vehicles, when varnish buildup or a short circuit causes the torque converter clutch solenoid to fail, the dealership requires replacing the entire valve body assembly. This Dorman OE FIX automatic transmission torque converter lock-up solenoid allows replacement of just the solenoid, instead of the entire valve body assembly, saving you a significant expense.

Not Yet Reviewed

$55.99

Pioneer Clutch Cables

Pioneer offers clutch cables for a variety of vehicle, engine, and transmission applications. These stock replacements will efficiently and smoothly transmit the movement of your clutch pedal when it's depressed to the release bearing. If shifting seems harder than it should be, order the direct-fit cable recommended for your ride.

3.67 out of 5 stars ( 3 )

$25.99

Dorman Wheel Hubs

Dorman wheel hubs are built with an industry-leading evaluation process that ensures their hubs are designed for long-lasting reliability and performance. Plus their vehicle try-on testing ensures a proper fit, every time. They feature sturdy steel construction. Bearings press onto the hubs for ease of installation. Wheel hubs are an integral component of your wheel assembly, crucial to establishing the handling characteristics of your vehicle. Trust Dorman hubs to deliver the best performance.

4.17 out of 5 stars ( 6 )

$39.99

Motive Gear Ring and Pinion Gear and Installation Kit Combos

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.

4.75 out of 5 stars ( 8 )

$1,150.99

Dorman Ring and Pinion Sets

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.

4.43 out of 5 stars ( 7 )

$196.99

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$599.95

LuK Clutch Slave Cylinders

Historically, the core business of LuK—an abbreviation that, in English, stands for disc and clutch makers--is clutches, their associated systems, and powertrain dampers. LuK clutch slave cylinders have a long operating life and low-friction characteristics, thanks to the special design of the central seal, with a plastic reinforcement and the use of special lubricants. LuK offers both hydraulic concentric slave cylinders fitted within the bellhousing and external slave cylinders for lever-operated throwout bearings. All automatically adjust for clutch wear.

4.37 out of 5 stars ( 59 )

$22.99

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$88.99

ACT Throwout Bearings

ACT throwout bearings are the same high-quality bearings included in your ACT clutch kits. They are available separately for every kit made by Advanced Clutch Technology and are perfect for replacing lost or damaged bearings.

4.27 out of 5 stars ( 11 )

$86.00

Renthal Ultralight Rear Sprockets

Renthal Ultralight rear sprockets will withstand the rigors of supercross, motocross, and enduro racing. Manufactured to extremely tight tolerances, they are 66 percent lighter than steel, and yet incredibly durable. Renthal uses computer-aided design, high-strength specially enhanced 7075 T-6 aluminum alloy, and CNC-machining to produce sprockets that are high-strength, hard-wearing, and offer the maximum reduction of unsprung weight at the rear wheel for maximum power transfer. They've also added self-cleaning mud grooves between every tooth on both sides to prevent dirt buildup. Shouldn't you choose the sprockets chosen by more factory race teams? Join a winning team and install Renthal Ultralight rear sprockets.

5.0 out of 5 stars ( 2 )

$89.84

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$94.15

ATI Bolt-Together Torque Converters

ATI bolt-together torque converters are high performance, serviceable racing converters designed to be disassembled by users for rapid tuning and repairs without needing factory service. Featuring a bolted, O-ring-sealed design, they allow for quick, in-house stator swaps to adjust stall speed and easy cleaning after transmission failures. Additional details: * Unlike welded converters, these can be split to replace bearings, shims, or stators at the track or at home, saving time and shipping costs * These units use a billet aluminum rear cover and require fewer bolts, resulting in a lighter converter (i.e., 2.5 lbs. lighter for 8 in. units) * Ideal for racing, these units allow racers to change their converter's stall speed without requiring multiple converters * Units feature double O-ring seals, furnace-brazed fins, and double anti-ballooning plates for high-horsepower applications

Not Yet Reviewed

$849.00

Valair Performance Quiet Street Dual Disc Clutch Kits

Diesel trucks are designed for towing heavy loads. If your rig is running 500 to 650 hp, then Valair Performance Quiet Street Dual Disc clutch kits are the way to tow. They feature tough heavy-duty parts, strong pressure plates, and a nodular iron flywheel. These kits are not intended for racing or competition use. Quiet clutch kits eliminate floater plate rattle when the clutch is pressed in, but gear rollover noise is inevitable when changing to a solid mass flywheel. It's often heard when the vehicle is under load at low rpm or idling, and it sounds like marbles in the transmission. Please educate yourself before purchase. Towing is tough on your vehicle—keep the pressure high and the shifts solid with a Valair Performance Quiet Street Dual Disc clutch kit, available for a variety of specific transmission applications.

4.56 out of 5 stars ( 9 )

$1,713.16

South Bend Clutch Dyna Max Street Dual Disc Clutch Kits

South Bend Clutch Dyna Max street dual disc clutch kits are offered for a range of applications and setups. These clutch kits are made using high performance materials and include everything you need for your clutch installation. Many kits include Kevlar® pilot bushings. When it comes to street performance, you can count on South Bend for top-quality components.

4.84 out of 5 stars ( 79 )

$1,157.18

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$1,695.80

Eaton Detroit Truetrac Differentials

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.

4.77 out of 5 stars ( 513 )

$990.99

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$1,299.99

South Bend Clutch Dyna Max Organic Clutch Kits

South Bend Clutch Dyna Max organic clutch kits are manufactured with performance organic friction material. Designed to provide smooth clutch engagement, these Dyna Max organic clutch kits include the necessary parts you need to do the job—and many kits include Kevlar® pilot bushings. The kits are available for a variety of clutch styles and applications and may come with or without a flywheel. Select the kit to fit your application needs.

4.71 out of 5 stars ( 103 )

$599.32

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$1,421.66

South Bend Clutch Hydraulic Assemblies

It's common for clutch hydraulic systems to become aged or weak, meaning you won't be able to select gears in the transmission. Even if your hydraulics are still working properly, if you're upgrading the clutch in your truck (or plan to), it might be time to invest in a heavy-duty hydraulic assembly from South Bend Clutch. Some factory hydraulic assemblies aren't up to the task of handling a dual-disc or even a stronger single-disc clutch. Purchasing upgraded hydraulics at the same time you order your performance clutch is highly recommended. South Bend Clutch hydraulic assemblies are engineered to enhance your vehicle's performance. They are made to stringent quality standards to ensure exceptional durability and years of trouble-free service. The kits are complete, typically including a master cylinder (adjustable on select models), slave cylinder, remote reservoir, and braided stainless steel hoses. South Bend Clutch replacement hydraulic assemblies are ready to work hard and play hard--just like your rig.

4.43 out of 5 stars ( 68 )

$344.16

South Bend Clutch Dyna Max Organic Feramic Clutch Kits

South Bend Clutch Dyna Max organic feramic clutch kits are manufactured with performance organic and feramic friction materials, which provide moderate clutch engagement. The Dyna Max organic clutch feramic kits by South Bend Clutch are durable and reliable. They come with the necessary parts you need to do the job—and many kits include Kevlar® pilot bushings. These kits are available for a variety of clutch styles and applications, with or without the flywheels. Select the kit best suited for your application needs.

4.91 out of 5 stars ( 23 )

$870.41

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$1,444.54

On Sale

B&M Automatic Transmission Deep Pans

B&M automatic transmission deep pans provide additional fluid capacity and cooling ability. No modifications to the dipstick are needed. They include a drain plug for clean and easy fluid changes, and are available in chrome or cast aluminum. Filter extensions are included for those applications that require the filter to be moved closer to the bottom of the pan.

4.59 out of 5 stars ( 368 )

$299.95

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$449.95

On Sale

B&M Precision Sport Shifters

These B&M Precision Sport shifters incorporate the latest technology from B&M in shifter development. They are CAD-designed using 3D printer prototypes to allow for different designs and materials, depending on your vehicle application. The shifters feature a fully isolated stick with a spherical pivot bearing that provides for extremely smooth operation and a 30 percent throw reduction. These shifters provide that quick, smooth, precise shifting you need, time and time again.

4.61 out of 5 stars ( 98 )

$699.95

Moog Super Strength U-Joints

Moog Super Strength U-joints are precision-manufactured to exacting standards. They have forged and case-hardened alloy steel crosses and heat-treated needle bearings. Cold-formed radial bearing cups provide 360 degree lubrication distribution, while superior-quality seals and a grease fitting make for easy maintenance. In addition, the Super Strength U-joints have an exclusive microshield coating to protect against rust and corrosion. They are available in greasable and non-greasable styles for more than a dozen positions--in universal and vehicle-specific applications.

4.56 out of 5 stars ( 233 )

$15.99

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$59.99

Timken Wheel Bearings

Timken wheel bearings are designed to be exact replacements for your OEM wheel bearings. Their steel roller bearing configuration allows for maximum performance without sacrificing durability. Available for a variety of passenger cars, trucks, and SUVs, these Timken wheel bearings will get you back on the road in no time.

4.71 out of 5 stars ( 268 )

$15.99

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$41.99

Timken Pinion Bearings

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.

4.83 out of 5 stars ( 60 )

$22.99

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$47.99

Valair Performance Heavy-Duty Clutch Hydraulic Kits

Valair heavy-duty hydraulic assemblies are master/slave cylinder replacements for your diesel rig. Depending on your year, they will include fixed rod or adjustable rod for pedal/engagement adjustment. Order the model designed for your vehicle application.

4.14 out of 5 stars ( 7 )

$355.26

Valair Performance Street Dual Disc Clutch Kits

Valair Performance Street Dual Disc clutch kits are designed for the street warrior who occasionally tows lighter loads (like a ski boat)—or the heavy towing rig with up to 550 hp. These two distinctive kit styles are each constructed from high-quality parts for excellent service. Dual discs have a wider range and greater holding power than singles, yet with similar driving characteristics. Street Dual disc kits come complete with important items like a new flywheel, pressure plate, and throwout bearing. Models are available for specific vehicle applications from the 1990s and up. Put extra power to the ground with a Valair Performance Street Dual Disc clutch kit.

3.71 out of 5 stars ( 7 )

$1,467.54

Moog Wheel Bearing and Hub Assemblies

Moog wheel bearing and hub assemblies feature problem-solving innovations and include application-specific design enhancements. They are engineered to overcome problems and deliver smooth, reliable performance. Features and benefits of Moog wheel bearing and hub assemblies include: * Roll-form design ensures consistent and optimal preload * Precision-matched components; rigorously controlled manufacturing processes ensure exact matching of bearing raceways and rolling elements to consistently deliver superior performance and minimize noise and vibration * Moog abrasion-resistant ABS cord manufactured from a blended material that offers increased abrasion resistance and better protection from adverse conditions * For applications that require it, ABS molded shield and socket connections for even greater defense against contamination * Premium quad-lip seal design ensures maximum protection from contamination * Wheel studs have a protective coating that helps prevent rust and corrosion, enabling easier removal and proper torqueing of wheel nuts

4.72 out of 5 stars ( 708 )

$202.99

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$295.99

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