Transmission & Drivetrain
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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.
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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QuickTime motor plates are made of 1/8 in. 6061 T-6 aluminum, or steel to protect your block and help contain the flywheel or clutch breakage. They come available for several applications, depending on your specific engine type.
( 16 )
$208.95
Centerforce billet steel flywheels are available for popular import and domestic vehicles, including trucks. They're CAD/CAM-designed and CNC-machined from billet steel for precise, no-hassle, bolt-in installations. No modifications are required in combination with either Centerforce clutches or other clutch assemblies built to OEM specs. These rugged flywheels are SFI-approved, so you know that you can count on them--on the street and on the track.
( 60 )
$440.95
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$524.95
Lighter means quicker! Heavy flywheels rob power from your engine and reduce its ability to rev and respond quickly. McLeod's aluminum flywheels can take a big bite out of those losses. They're made from quality aluminum and come with steel-insert friction surfaces. Ring gears are held in place with welded and riveted tabs, and all flywheels are drilled to accept balancing weights for externally balanced engines.
( 8 )
$395.00
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$595.00
On Sale
Hays steel flywheels are engineered to handle extreme-duty applications and designed to take the punishment of today's high-horsepower engines. They are CAD-engineered and precision CNC-machined to strict tolerances. Available in weights up to 50 lbs. for specialized applications, most Hays flywheels are drilled with both the Borg and Beck and Long-style clutch patterns. Upgrade to a precision-machined and engineered Hays billet steel flywheel. Features include: * SFI-approved--legal for use in racing classes that require SFI certification * CNC-machined from certified billet steel for maximum strength and durability * CAD-designed for optimum performance and reliability * Offered in internal, external, or neutral (zero) balanced versions * Available for a wide variety of engines Note: When choosing a flywheel, remember that a heavier flywheel stores more energy. A heavy car requires more power (or inertia) to launch without bogging the engine and needs a heavier flywheel. Lighter flywheels create less inertia at launch, but will accelerate faster through the gears.
( 30 )
$569.95
$313.95
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$722.95
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 )
$499.00
Protect your bearing investment with Moser Engineering inner housing seals. Worn bearing seals can fail and allow dirt in and grease to splatter out, leading to the bearing seizing and then failing. These quality inner housing seals are designed to be used with 1.531 in. and 1.562 in. ball bearings. Install with the flat side facing you and drive into the housing end until it seats into the proper position.
( 8 )
$6.00
Strange U-joints are great. They're made from top-quality materials for a good fit with your drivetrain components.
( 16 )
$34.99
On Sale
Hays heavy-duty flexplates for high performance and competition engines are constructed from a thicker-than-stock steel plate. This enables them to withstand the stress of high-stall torque converters and high-rpm engines. While factory stock plates tend to crack around the crankshaft hub when punished under high-torque and rpm conditions, the thicker Hays flexplates can handle the force. These heavy-duty flexplates are supplied with a ring gear that is securely welded in place. All Hays heavy-duty flexplates are zinc-dichromate plated to resist corrosion and SFI-certified under specification 29.1.
( 63 )
$157.95
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$219.95
ATP offers replacement flexplates in a variety of sizes, shapes, and configurations. The steel plates are manufactured to exacting tolerance for precise fit. Order the model recommended for your year/make, engine, and transmission application.
( 197 )
$37.79
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$113.99
McLeod Super StreetPro clutch kits are great Street/Strip performance clutches—perfect for use with moderate engine modifications, including intake and exhaust upgrades, camshaft and cylinder head work, and engine management programming. Super StreetPro kits provide a heavier pedal effort than stock, along with improved holding capacity, making these excellent high performance replacement clutches. Additional features and benefits include: * SFI-approved assembly * Handle up to 500 hp * Dual-faced organic and ceramic disc for smooth engagement with exceptional holding capacity
( 229 )
$325.00
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$495.00
RAM Force 10.5 dual disc clutch kits have a strap-driven floater plate and are precision-balanced for quiet operation. The sprung hub top disc absorbs shock and reduces driveline noise. Force clutches are available with your choice of a 300 Series friction disc or a 900 Series disc. The 300 Series organic disc models are capable of handling 500 to 800 hp; while the 900 Series metallic models can handle between 600 and 1,200 hp. These kits use a marcel spring—a thin, wavy device that helps to eliminate the go-or-no-go tendency that similar dual disc clutches have. RAM Force 10.5 dual disc clutch kits include a billet aluminum, SFI-certified flywheel with a steel insert that has sufficient mass to draw heat away from the clutch without distortion. Some kits are available with a steel flywheel. Order the model recommended for your vehicle and engine application.
( 4 )
$1,425.00
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$1,685.00
RAM Pro Street dual disc clutch kits are precision-balanced for smooth operation—and come equipped with a billet cover for optimum release length, a comfortable pedal effort, and a high diaphragm finger position for excellent high-RPM shifting capability. The sprung hub top disc absorbs shock and reduces driveline noise. Pro Street kits are available with your choice of an organic friction disc or a metallic disc. Organic disc models are capable of handling 500 to 800 hp; the metallic disc models can handle between 600 and 1,200 hp. RAM Pro Street dual disc clutch kits include a billet aluminum, SFI-certified flywheel with a steel insert that has sufficient mass to draw heat away from the clutch without distortion. Some kits are available with a steel flywheel. Order the clutch recommended for your vehicle and engine application.
( 1 )
$1,899.00
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$2,159.00
Sometimes you just want steel! Lightweight alloy flywheels can offer substantial benefits for certain situations, but sometimes they're just not your cup of tea. Maybe you're on a budget, maybe you're running a heavy drag car, or maybe you just don't need those benefits. If that's the case, McLeod has the answer. Their steel flywheels deliver all of the strength and reliability that you need, at a substantially lower price. They're neutrally balanced, but are drilled to accept balance weights for use on externally balanced engines. McLeod steel flywheels available for a wide variety of large and small engines.
( 102 )
$345.00
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$415.00
Chevrolet Performance SuperMatic transmission control systems make it easy to connect and cruise. These controller kits complement the ready-to-run convenience of your crate engine with plug-and-play operation. There is no additional wiring, and the leads are clearly marked to link up with the engine control harness. SuperMatic control systems are pre-programmed to provide full-function transmission operation after completing the connections. No laptop programming is required. Chevrolet revised the systems with a more compact design for a headache-free installation with your carbureted small block, big block, or ram jet engine—and they're compatible with OBDII code readers. Get in gear with the simplicity and improved shift performance offered by Chevrolet Performance SuperMatic transmission control systems.
Not Yet Reviewed
$2,120.96
Ford offers a variety of Ford Performance Parts flywheels and flexplates for a variety of Ford engines, ranging from the versatile small block V8 up to the mighty 460. They offer cast iron flywheels for stock applications, plus billet steel and aluminum models, many with reduced rotating mass, for street/strip and racing use. Their flywheels and flexplates are available with 157, 164, or 176 teeth ring gears to suit your application and many are SFI-approved.
( 87 )
$289.99
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$373.99
PRW Gold Series flexplates are engineered to handle extreme duty applications and designed to endure the punishment of modern high horsepower engines. The 4mm thick centerplate provides a solid foundation for these direct bolt-on drivetrain components. Ring gears are precision double-welded, utilizing robotic machinery and cold-welding processes for added durability. These flexplates are rigorously inspected throughout the manufacturing cycle to ensure you receive the expected quality. They are available in a wide variety of configurations to precisely match your application. Raise the bar on your high performance vehicle with PRW Gold Series flexplates. Order the style recommended for your specific vehicle and engine size. Features and specs: * Designed to fit standard OEM, aftermarket replacement, and high performance torque converters * SFI 29.1 certified * Forged one-piece steel ring gears * 0.035 in. thicker than stock flexplates * Constructed from cold-rolled chromoly steel * Long lasting yellow zinc plated finish
( 41 )
$91.23
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$111.23
Cast flywheels are not explosion-proof and can be dangerous when used in high performance applications at higher rpm. RAM billet steel flywheels are recommended as replacements for factory-cast flywheels in high performance and racing vehicles. Made in America and produced in-house, all RAM flywheels are computer balanced within a 1/2 oz., surface ground (which results an optimum mating surface), and are ready to run out of the box. They're better for launching heavier drag race cars and provide better drivability in street vehicles. SFI-approved, RAM billet steel flywheels are CNC-machined from certified materials. Order the model recommended for your year/make and engine application. Technical note: As they spin, heavy flywheels store more energy than lighter ones. Engine and gearing combinations that require more power or inertia to make the car launch without bogging the motor need heavier flywheels. However, heavier flywheels accelerate slower. Lighter flywheels create less inertia at launch, but accelerate quicker through the gears. When choosing a flywheel, you must consider the car's weight, operating rpm of the engine, and, most importantly, the gearing. Insufficient gearing will cause an engine with too light of a flywheel to "bog" on launch.
( 132 )
$379.00
If you're building an all-out competition car, then you need a lightweight flywheel that will allow the engine to rev quicker and not eat up a lot of power. RAM billet aluminum flywheels greatly reduce rotating weight to permit quicker revving and higher power output, but still retain enough mass to resist heat distortion that could adversely affect clutch performance. RAM billet aluminum flywheels are made in America and produced in house. All RAM flywheels are computer-balanced within a 1/2 oz., surface ground (which results an optimum mating surface), and are ready to run out of the box. SFI-approved, these flywheels are CNC-machined from certified materials and have rugged steel friction-surface inserts. RAM's billet aluminum flywheels feature a 1/4 in. thick friction insert to dissipate heat away without distortion. Technical note: As it spins, a heavy flywheel stores more energy than a lighter one. Engine and gearing combinations that require more power or inertia to make the car launch without bogging the motor need heavier flywheels. However, heavier flywheels accelerate slower. Lighter flywheels create less inertia at launch, but accelerate quicker through the gears. To effectively use a lighter flywheel, you must consider the car's weight, operating rpm of the engine, and, most importantly, the gearing. Too little gear will cause the engine to 'bog' on launch.
( 31 )
$499.00
A higher-than-stock stall speed as delivered by these B&M Holeshot converters will provide several advantages and benefits to vehicles with modified engines. Many modifications, particularly big cams, tend to reduce low-end power and torque. These high-stall converters allow the engine to launch the car at higher rpm, where more torque is available. They're a very good choice for the typical street machine that is looking for better launch capability and more strength.
( 81 )
$527.95
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$823.95
McLeod StreetPro clutch kits are excellent performance clutches for street enthusiasts. StreetPros are ideal for use with basic engine modifications, including cold-air intakes, exhaust upgrades, and engine management programming. These McLeod kits provide slightly heavier pedal effort with increased holding capacity, making them excellent factory replacement performance clutches. Order the size to match your vehicle specifications. Additional features and benefits include: * Bolt to stock flywheels * Handle up to 400 hp * Organic disc facing for smooth engagement with excellent release qualities
( 162 )
$265.00
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$475.00
ACDelco offers GM Genuine Parts wheel bearings for a variety of GM applications. These replacements allow the wheel to rotate with minimal friction—and contain tapered roller, straight roller, or ball-bearing elements, depending on the vehicle. Wheel bearings support the weight of the vehicle, and are lubricated with axle oil or wheel bearing grease. Machined from high-quality materials, these original equipment bearings are engineered to provide the same fit, performance, durability, and service life you expect from ACDelco GM Genuine Parts wheel bearings.
Not Yet Reviewed
$5.99
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$15.99
Nitrous engines produce some serious horsepower and require a serious torque converter to handle it. B&M nitrous Holeshot torque converters can handle up to 650 hp and are built with the same features as the other B&M Holeshots, with the addition of anti-balloon plates that allow these converters to stand up to the instant horsepower that nitrous delivers. Converters with higher-than-stock stall speed let your ride accelerate better from a dead stop and allow the vehicle to idle better when a big cam is used. Fully furnace brazed, heavy-duty, needle-bearing thrust packages and new turbine hubs are the key features of these converters, along with the anti-balloon plates. These are serious converters for serious street performance cars.
( 21 )
$749.95
Lokar's new Vintage Series kickdown kits help you extend your retro-look theme under the hood—a plus for classic auto enthusiasts! These automatic transmission downshift cables feature a vintage braided cloth cover with a clear protective coating. The jackets are offered in a variety of color schemes for your engine bay customization. Each stainless steel inner wire is housed by a specially extruded liner to ensure long life—and, if needed, you can cut them to fit a majority of aftermarket and factory cable-operated throttle pedals. Vintage Series cables include black aluminum ferrules and fittings to help eliminate fraying and to facilitate an easy installation. Lokar kickdown kits are available for numerous transmission makes and models.
( 1 )
$142.95
Introducing the Black Label Special Edition flexplates—the newest addition to PRW's flexplate lineup that meet the SFI 29.1 specification, which is a significant improvement over the OEM flexplates. The Black Label Special Edition Series flexplates are available for most Chevy, Ford, and Hemi applications. All of these applications conform to all published SFI standards, with the added benefits to the racing and performance builder that is looking for and demands the best in quality and engineering. Choose the model designed for your application needs. Key features: * Exceeds SFI Specification 29.1 * Perfect for road racing and lighter vehicles * Several fitment options for early-to-later model transmission swaps * Compatible with most aftermarket racing and high-performance torque converter bolt patterns
( 4 )
$127.22
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$128.93
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