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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.
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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Rekluse Clutch Core Manual Clutch Kits
Rekluse Clutch Core Manual clutch kits are professional-grade units offering improved durability and reliability over stock components. Constructed from double hard anodized billet aluminum components, they are lighter, stronger, and will perform better than stock. Features and benefits include: * Reduced clutch fade * Consistent and improved lever modulation * Strategic engineering increases oil flow, decreases operating temperatures and extends clutch life * Installation does not require modification of stock parts * Includes proprietary anti-drag steel drive plates
Not Yet Reviewed
$499.00
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$879.00
Rekluse Clutch Core EXP 3.0 Auto-Clutch Kits
Use the same clutch trusted by elite racers worldwide, Rekluse Clutch core EXP 3.0 auto-clutch kits. These clutches operate by centrifugal force and engage and disengage based on RPM. Using fine materials like billet aluminum, Rekluse Clutch core EXP 3.0 auto-clutch kits are durable. Kit contains everything you need for installation. If your clutch is hydraulic actuated, a slave cylinder is included too. Other features include: * Prevents engine stalls * Clutch lever use is optional * Smooth power engagement increases traction * Fully tunable * Manual shifting of transmission is still required * Installation does not require modification of stock parts
Not Yet Reviewed
$649.00
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$1,229.00
Rekluse Clutch Core Manual TorqDrive Clutch Packs
Rekluse Clutch Core Manual TorqDrive clutch packs are the correct choice for servicing your Rekluse clutch. TorqDrive friction disks, steel drive plates, and basket sleeves are included in these replacement clutch packs. Choose the pack needed for your dirt bike or ATV. Notes: * Replacement clutch pack for Core Manual TorqDrive clutch only * Not compatible with OEM or any other aftermarket clutch system * Available for most off-road and ATV models
Not Yet Reviewed
$270.00
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$349.00
Rekluse Clutch Core Manual TorqDrive Clutch Kits
Rekluse Clutch Core Manual TorqDrive clutch kits allow more friction disks to fit the clutch, delivering smoother lever function, less clutch fade, and a more linear power delivery. In addition, the billet center hub and pressure plate work together to move more oil through the clutch, reducing drag and decreasing operating temperatures. The TorqDrive technology features thin friction disks and protective basket sleeves, while the Core technology optimizes oil flow, helping your clutch last longer, and reduces temperatures to maintain consistent performance even in extreme conditions. Join the clutch revolution with the Rekluse Clutch Core Manual TorqDrive clutch kit best suited for your application. Other product features and benefits include: * Reduced (10 percent) clutch lever pull strength for less hand fatigue * Expanded friction zone for increased control and smoother take-offs * Increase (20 percent) in torque capacity for reduced wear, reduced heat, and increased power transfer capability * Billet internal components provide enhanced durability and increased oil flow
Not Yet Reviewed
$909.00
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$1,029.00
ATP Automatic Transmission Filter Kits
ATP automatic transmission filter kits include everything you need for a fast, efficient filter change. They include all gaskets, filters, and other components that you might require. These replacement filters are specifically designed for your transmission; therefore, improper fitment is never an issue! Order the kit recommended for your application.
( 128 )
$16.50
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$106.99
Spicer Drivetrain Products Differential Cover Performance Gaskets
Spicer Drivetrain Products provides you with gaskets that are specifically built to withstand the rigors of performance applications. Differential cover performance gaskets are designed to seal into place, even with existing surface irregularities. They're constructed out of quality materials that provide stiffness, for easier repairs and additional radial strength.
( 9 )
$4.99
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
Hurst Shifter Cables
The improved design of these Hurst shifter cables incorporates a solid core with helical lay wires wrapped around it for additional strength and durability. Hurst cables have a 303 stainless steel inner wire with 120,000 psi tensile strength. The cores are lubricated with Teflon prior to assembly and then sealed in a heavy plastic outer casing for a lifetime of durability and smooth operation.
( 55 )
$101.95
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$152.95
Cardone New CV Drive Axles
Cardone products are the highest-quality new manufactured parts in the aftermarket. Through reverse engineering, their engineers pinpoint original equipment design weaknesses by examining failed cores. All of the technology and expertise that go into their manufacturing processes can only be found behind the Cardone name. For the past 40 years, Cardone's innovative manufacturing processes have provided a high-quality, lower-cost alternative to replacement parts. Add to that a new part number release program offering the latest-model coverage, and you get a winning combination! It doesn't matter if your vehicle is vintage or fresh off of the dealer's lot—Cardone is your one source for replacement hard parts. Additional features of Cardone new CV drive axles: * The most advanced engineering and manufacturing processes to provide you with high-technology replacement parts * Neoprene boots resist ozone, eliminating cracking, a leading cause of CV boot failure * 3 percent moly grease provides excellent high-temperature and pressure characteristics, extending the life of the joint * All axles are supplied with a new axle nut, replacing the worn or damaged existing axle nut * Rolled axle splines guarantee the proper installation of the axle into the hub and transmission * Rolled threads guarantee the proper installation of the axle nut Order the replacement model designed for your vehicle application.
( 54 )
$29.50
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$168.99
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.
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$14.99
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$341.99
Sonnax Manual Shift Shafts
Sonnax manual shift shafts help rebuilders use late model cores to rebuild into early model units. Sonnax manual shift shafts contain early model manual shift shafts that retrofit to a late model manual shaft detent lever, allowing the late model case and detent lever to be used in early models. These shafts offer a more economical solution than the OE manual shift shaft and detent lever kit, without the added cost for such additional components as the OE lever, pin, and shaft seal--parts rarely used during the rebuild. The manual shift shaft and fasteners have been yellow zinc plated for corrosion resistance to road salt and other environmental contaminates. The flange face of the nuts is serrated for better holding capacity.
( 5 )
$23.99
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$29.99
Sonnax Remanufactured Valve Bodies
Transmission valve bodies only last so long. When it's time for replacement, you can spend extra green and get new, or buy Sonnax remanufactured valve bodies. To eliminate separator plate cracking or cross-leaking, Sonnax adds a 2-3 accumulator support plate before remanufacturing. Each core's disassembled, cleaned, updated, tested, and parts are replaced as necessary. These direct replacement units are electronically and hydraulically tested and include lockup and shift solenoids. Save some green, while still receiving premium parts, with Sonnax Remanufactured valve bodies.
( 2 )
$364.99
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$438.99
ATI Powerglide Transmission Super Bands
ATI Super Bands are high performance replacements for Powerglide low gear bands, which are so critical in the operation of a race transmission. These bands are completely new cores made of invest cast steel, machined totally in-house with all-new components. Providing 21 percent more clamping area than stock bands, their lining is made of heavy-duty materials to ensure high performance and longevity. They are recommended for use with all popular dual ring servos.
( 2 )
$216.99
Sonnax Smart-Tech Drum Modules
Sonnax Smart-Tech drum modules for racing GM TH400 transmissions improve on-track performance and consistency, leading to quicker ETs, more wins, and greater reliability. The TH400 is preferred for its overall durability and multitude of available ratios, but is known to be heavier and less efficient than the popular two-speed Powerglide. Part of the TH400 inefficiency results from the fact that the direct drum counter-rotates, spinning backwards in 1st gear, brakes to a complete stop on the 1-2 shift, then goes from 0 RPM to input RPM on the 2-3 shift. Significant energy is wasted through this cycle that robs power, upsets traction on the shifts, and contributes to broken internal parts. Compared to aluminum direct drums, the Smart-Tech drum module reduces the weight of the counter-rotating components by over 3.3 lbs.! And more significantly, because the weight of the Sonnax counter-rotating parts is closer to the centerline, there's a 68 percent reduction in energy required to stop and restart during the 1-2 and 2-3 shifts. The benefits are increased wheel horsepower, better acceleration, less shock on the shifts, and improved durability. * Complete kit (34555-01K) replaces both forward and direct drums and includes everything from intermediate sprag to the pump; a selection of Sonnax input shafts is available separately. * 100 percent new content, no used core pieces * Includes larger-diameter, 36-element sprag and sprag race that works with OE intermediate clutches * Includes six-friction forward clutch pack and seven-friction direct clutch pack Contents: * Forward Piston Housing * Forward Piston * Forward Piston Return Springs (16) * Forward Spring Retainer * Forward Snap Ring * O-Ring 1.674 in. * Lip Seals (2) * Direct Housing Assembly * Direct Piston * Direct Piston Return Springs (26) * Direct Spring Retainer * Direct Snap Ring * O-Ring 2.737 in. * Sprag Shaft * Front Sprag Retainer Plate * Heavy-Duty Sprag 36 Element * Outer Sprag Race * Rear Sprag Retainer Plate * Sprag Retainer Screws (4) 6-32 x 5/16 in. * Quad Ring Seals (2) * Anti-rotation Seal Rings (2) * Drum * Pressure Plate * Outer Snap Rings (4) * Bearing Small * Forward Clutch Hub * Bearing Large * Direct Clutch Hub * Steel Clutch Plates (4) .060 in. * Steel Clutch Plates (11) .077 in. * Friction Clutch Plates (13) .080 in. * Clutch Separators (60) .103 in.
Not Yet Reviewed
$3,052.40
Gennie Shifter Lo-Stik Shifter Assemblies
Gennie Shifter's Lo-Stik shifter assemblies are the core of their hot rod shifters. Each Lo-Stik shifter enables you to combine your preferred length, shape, and style shifter stick with the proper mounting kit for your transmission. Then cap off the combo with your favorite shift knob and a great Gennie Shifter boot. Gennie Lo-Stik shifters are available with shift gates to fit popular General Motors, Ford, and Mopar transmissions. Like most OEMs, Gennie shifters use side detents to precisely define gear selection. This lateral action, with its positive stops, virtually eliminates shifting errors that can occur with straight line, button-style shifters (once the button is depressed, a straight line shifter can be pushed into any gear). Side detents also provide smooth manual shifting. Lo-Stik shifters all have a neutral safety switch and a gated lock-out for a safe, no-button shifter with fewer moving parts and no rattles; and you're never limited in your choice of shift knobs. In fact, with a Gennie Lo-Stik shifter assembly, it's a breeze to switch between Gennie shift sticks. Features include: * Delrin bushings * Neutral safety switch * Hardened Posiloc shift gate * Includes high-polished 303 stainless steel components * Precision-machined fit and finish * Backup light switches sold separately for select shifters
( 15 )
$249.95
American Powertrain White Lightning Shifters
Get your transmission in gear with one of these American Powertrain White Lightning shifters. They feature a billet aluminum base plate and tower with billet steel center core, plus an independent bias adjustment—an industry exclusive that significantly improves 2-3 shift action and overall shift feel with the simple turn of a screw. Their low-profile design is perfect for increased tunnel clearance, and the short throw action provides for accurate shifts. Dozens of models are available, for universal or transmission-specific applications.
( 9 )
$339.95
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$399.95
Sonnax Big Input Shaft Kits
Stop worrying about input shaft failure when running the GM Powerglide in the most extreme applications. Sonnax offers the only big input shaft upgrade with custom components designed to work together for reliable performance. Whether you have an existing assembly or start from scratch in the gear ratio of your choice, it's the best way to connect huge power to Sonnax Extreme planetaries for great run after run with minimum downtime. The only way to prevent twist and breakage from massive torque is to increase the input shaft diameter, and the core of the big shaft system is big input shaft kit 353532-01K. The shaft strikes the perfect balance between strength and ease of installation with a 1 1/8 in. diameter and a unique, high-strength spline that still fits through the front sun gear. It delivers 35 percent more strength than standard 1 in. shafts, a dramatic upgrade for racers that want to take full advantage of the lightweight and efficient Powerglide automatic transmission. (Note: The Sonnax big shaft system for Powerglides requires changing to a 35-spline turbine hub.) Kit contents: * Shaft * Clutch Hub Big Shaft features: * Torsional, ringless design * Heat-treated, 300M steel with advanced processing * 35 splines (AOD-style) at converter Clutch Hub features: * 1.500 in. tall hub for use with 10-clutch setups * High-strength chromoly steel * Custom fit for the big shaft
Not Yet Reviewed
$1,547.27
SVL Drivetrain Spider Gear Kits
Rebuild the inner workings of your differential with a new spider gear kit from SVL Drivetrain. These assemblies include side gears, cross shaft, thrust washers, and hardware for fitment with most popular carrier applications. Engineered for performance, SVL drivetrain components are backed by the industry leader—Dana. The inner gear kits are engineered and tested to ensure quality case depth, core hardness, microstructure, materials, and coatings. Additional lubrication benefits protect against spinout. Avoid premature failure inside your diff with SVL Drivetrain spider gear kits.
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$95.99
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$220.99
D.I.D Racing Chain 520MX Non-O-Ring Racing Chains
D.I.D Racing Chain 520MX non-O-ring racing chains are Motocross monsters offering championship quality and podium performance. D.I.D's 520MX chains boast their highest rated tensile strength among non-sealed chains at 8,930 lbs., making then perfect for the beating that chains take during tough, off-road races. Trusted by many AMA champions, the chains utilize D.I.D's SDH pin treatment with an extremely hard chromium carbide surface layer and a softer inner core, enabling the chains to absorb shock loads without stretching and landing you on the box. Optimal for off-road racing in muddy conditions, you can count on D.I.D's 520MX chains in the harshest of conditions to get you across the finish line.
Not Yet Reviewed
$134.99
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$137.99
Renthal Grooved Front Sprockets
Renthal grooved front sprockets are simply the finest front chainwheels on the market today. They are designed to offer excellent durability with a lightweight design which delivers maximum power transfer. Each sprocket is CNC-machined from cased hardened and core refined 655M13 nickel chromium steel. Mud grooves are then CNC-machined into each tooth on both sides of these components to allow mud to flow away from the key contact points between the chain and the sprocket. This unique design helps reduce wear and can dramatically increase the lifespan of your drivetrain. Maximize your performance with the ultimate front sprockets from Renthal.
Not Yet Reviewed
$31.46
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$46.76
Renthal Twinring Sprockets
Renthal Twinring sprockets are truly unique hybrid sprockets that will keep you spinning around the track. Twinring off-road sprockets are made of long-lasting and durable material--a high-strength, ultra-light 7075 T-6 aluminum inner core and an electroless nickel coated steel outer ring are permanently bonded together. They are precision CNC-machined to tight tolerances and feature a flat face design that keeps weight to a minimum and makes them as narrow as regular sprockets! Self-cleaning mud grooves are added between every tooth on both sides to prevent dirt buildup, plus flat socket head screws add additional strength to the sprockets during side impacts. Try double durability with less weight on your dirt bike with the addition of Twinring sprockets from Renthal.
Not Yet Reviewed
$128.26
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$134.99
BD Diesel Build-It Stage 2 Intermediate Kits
BD Diesel Build-It transmission kits overhaul your automatic transmission for top performance. BD Diesel Stage 2 Intermediate kits feature the same parts they use in their performance transmissions and allow seasoned builders, like you, to "build-it" like a pro. There's no guesswork matching components and no core charges, saving you time and money. When you want to rebuild your own transmission, BD Diesel Build-It kits help make your job less of a hassle. BD Diesel Stage 2 Intermediate kits include: * Custom valve body separator plate to increase line pressure while stopping internal cross leaks * Heavy-duty accumulator plate * BD Diesel's QT100 pressure plate for increased clutch counts and reduce deflection and distortion within the clutch drum * 2C clutch frictions/steels * 4C clutch frictions/steels * Overdrive clutch frictions/steels * Reverse clutch frictions/steels * Billet Overdrive and reverse selector plate * Billet Overdrive and underdrive reaction plate * Stiffer billet intermediate reaction plate * Stiffer billet Overdrive and reverse reaction plate * Billet 4C spring retaining ring * Seven 1/4 in. check balls * Filters * Gasket kit * Seal kit
Not Yet Reviewed
$961.95
Zumbrota Remanufactured Manual Transmissions
Zumbrota remanufactured manual transmissions are some of the most dependable 5-speed, 6-speed, and transaxle units available. Each transmission is put through tremendous testing and inspections to assure the highest quality possible to use in your vehicle. Benefits of Zumbrota remanufactured manual transmissions include: * A pre-inspection is done to ensure the unit is free of case cracks, excessive wear and to catch other OEM related problems that many cores have * A second inspection is conducted during the remanufacturing process to ensure all component parts meet OEM specifications * A final post-build inspection is done to ensure unit is built to their strict standards * All units are quality inspected throughout the remanufacturing process to maintain our quality standard * All housing and top covers are cleaned utilizing their state-of-the-art hydro-blasting and rinsing process--this brings all cases back to the OEM finish * 100 percent inspection of internal parts, including gear wear checks, main shaft straightness test and synchronizer testing * 100 percent replacement of seals, bearings, and other common wear components * Units are shipped in high-density plastic totes to help eliminate in-transit damage * All transfer cases are sold with a standard 2 year/unlimited mileage warranty
( 21 )
$1,212.99
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$5,805.99
Eaton NoSPIN Differentials
Eaton NoSPIN differentials maximize traction by delivering 100 percent of the torque and power to both drive wheels. They're engineered to keep both wheels in a constant drive mode, yet have the ability to automatically "unlock" during vehicle turning to permit necessary wheel speed differentiation. NoSPIN models are trouble-free and do not require special lubricants or service adjustments. These differential carriers are available for a wide range of differential case design types and axle manufacturers. Core features: * Works in forward and reverse * 100 percent automatic locking action - even with one wheel off the ground * Provides a fully locked rear axle that automatically unlocks with wheel speeds are different. * Legendary durability and proven performance in a wide variety of applications. * Applies all available torque to wheel with most traction to overcome most any terrain challenge.
Not Yet Reviewed
$769.99
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$2,745.99
