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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.
Showing In Stock Items. Show All 57 Items.
Dakota Digital Alpha-Numeric LED Gear Shift Indicators
These innovative Dakota Digital alpha-numeric LED gear shift indicators display the shift positions for both standard automatic and overdrive transmissions. They come available in red, green, amber, and blue LED colors. Dakota Digital's gear shift position indicator sending units are required to operate these displays and are sold separately.
( 12 )
$94.95
Dakota Digital LED Gear Position Indicators
Dakota Digital LED gear position indicators are for surface mount applications. The plates are held on by first drilling the holes for the LEDs through the dash and running wire from the LEDs into the dash. When the plates are placed against the dash, they will be held in place by the LEDs. They come available with and without overdrive, in horizontal and vertical mount applications.
( 8 )
$33.25
Dakota Digital Kugel Nuts
Dakota Digital offers Kugel nuts for use with Kugel and Lokar shift linkages. Made from durable materials, they feature a standard thread and are compatible for 700R4, 4L60, and the MD8 transmission applications.
( 1 )
$14.25
Dakota Digital Gear Shift Indicators
Dakota Digital gear shift indicators offer an automatic gear position display (using a Dakota Digital GSS-2000 sender), turn signal indicators, and a high beam indicator. They also feature a miscellaneous indicator to be used for check engine, 4WD, cruise control, security, or anything else necessary. They come available in round or oval shapes with a blue, amber, green, or red display in a brushed or chrome bezel finish.
Not Yet Reviewed
$118.75
JMS Chip LaunchMAX Digital Trans-Brakes
JMS Chip LaunchMAX digital trans-brakes have no moving parts or relays to fail. Offering high reliability, plus easy-to-install splice-in or plug-and-play designs, LaunchMAX delivers a fast release and waterproof performance. You can choose either ground or +12 V activation, and they can be stacked with a JMS custom tune file delivered to the ECU via an SCT handheld. Take off with JMS LaunchMAX digital trans-brakes.
Not Yet Reviewed
$209.75
Intellitronix LED Digital Gear Shift Indicators
Intellitronix LED digital gearshift indicators take your dash to the next level with brilliant LEDs. They are easy to install and come with a lifetime factory warranty, all necessary sending units, wiring, hardware, mounting brackets, and installation instructions. Be the envy of everyone on your block with Intellitronix LED digital gearshift indicators. Indicator displays: * Gears 1, 2, 3, 4, 5, 6 * Right and left turn * Brake, Park, Reverse, Neutral, Drive, Overdrive, Low * High beam * Engine check light * Available in red, green, blue, or white
Not Yet Reviewed
$188.64
Manufacturer Rebate
Clearance
Dedenbear Digital LED Dial-In Board Remote Display Cable Tee Fittings
Dedenbear Products has been helping drag racers since 1979. That includes providing accessories and replacement components to keep their products--and you--racing down the track. Dedenbear remote dial-in display cable tee fittings allow you to run two RD1 remote displays from a single controller, so you can present your dial-in on both sides of your car for tracks with different tower locations. These tee fittings feature positive lock connectors ensuring a solid connection.
Not Yet Reviewed
$23.99
$15.50
ATI SFI Flexplates
Made on state-of-the-art CNC equipment, ATI SFI flexplates are double MIG/TIG-welded with certified American-made materials that far exceed SFI specs for safety. They're manufactured and toleranced from actual OEM drawings to ensure precise fit and location. Each is quality-inspected to exceed the flatness and runout tolerances of the OEM units. They are also precision-balanced on Hines digital equipment with a resolution of 1/10 oz. per inch. Available in dozens of configurations, ATI SFI flexplates can be ordered for fitment on vehicles covering every decade since the mid-1950s.
( 75 )
$149.00
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$329.00
ATI SFI Flexplate Kits
ATI flexplates are created from custom-drawn, SFI-spec chromoly steel. They are double MIG/TIG-welded for additional strength and lasting precision, pass after pass. These kits are manufactured and toleranced from OEM drawings to ensure a precise fit and location. The plates are quality-inspected to exceed the flatness and runout tolerances of the OEM units and precision-balanced on Hines digital equipment with a resolution of 1/10 oz./in. These kits include a flexplate, a CNC-machined crank piloted spacer, and crank bolts.
( 3 )
$269.00
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$344.99
Sonnax NSS Adapter Kits
Sonnax NSS adapter kits allow late-style, 5-wire neutral safety switch cases to be used in early-style, 3-wire vehicles. Chrysler changed the design of its digital neutral safety switch, the result was the case hole was made larger and the late-model Chrysler 42RE, 46RE, and 47RE cases could not be used for applications requiring the early-style neutral safety switch. Sonnax adapter kits screw into late-model cases, and when used with an earlier style valve body manual lever, allows these cases to be used in earlier model vehicles.
( 2 )
$19.99
TCI Paddle Shifters
These TCI paddle shifters are designed to work with any automatic 4 or 5-speed transmissions controlled by the revolutionary TCI transmission control unit. These shifters feature distinctive show-car styling and shifting performance that's perfect for track days or highway cruising. TCI paddle shifters communicate to the transmission control units through a wireless CAN signal with no worries about signal interference or disruption. The steering wheel mounted units operate by slim, 1/2 in. thick paddle shifters that instantly instruct the transmission as to your gear of choice without hesitation. These shifters fit all 5 and 6-bolt aftermarket steering wheels and come complete with server spacers of varying widths, allowing you to adjust the steering wheel location for your personal preference. Power for the TCI paddle shifter systems comes from the horn button relay rather than from batteries that must be replaced frequently. Additional features include: * Fit all 5 and 6-bolt aftermarket steering wheels and provide consistent, repeatable shifting for g-machines and touring cars * Work with any automatic 4 or 5-speed transmission controlled by the revolutionary TCI transmission control unit * Utilize CAN signal for gear selection without interference or hesitation; includes easy-to-read digital gear display powered by car horn connections * Easy-to-install, slim line, 1/2 in. thick paddles with stylish black anodized finish
( 2 )
$972.95
Trail-Gear Rock Assault True Width Tacoma Axle Assemblies
Trail-Gear Rock Assault True Width Tacoma axle assemblies offer ground clearance to roll over any terrain. Their exclusive design is built with all-new components and state-of-the-art, 3-D digital imaging to ensure that the housings are 100 percent straight and true. The build of these axle housings delivers increased clearances under the axle tubes and differential, as well as increased strength to handle the stresses of heavy loads. They're available in your choice of bare tubes, models with spring perches installed, or a 3-link ready with a panhard bracket. Climb to new heights with the added clearance and strength provided by Trail-Gear Rock Assault True Width Tacoma axle housing kits. Features: * Forged strong 1035 steel knuckle balls—eliminates closed, bent knuckles * 5/16 in. thick 1020 DOM axle tubes—offset above the housing centerline so the inner axles ride near the bottom of the axle tubes, rather than center * Heavy-duty, press-formed 1/4 in. steel plate center section—shaved to create additional clearance under differential * 1/2 in. plate steel differential mounting surface—assurance that studs cannot pull out * Includes both 30-spline chromoly short and long axle shafts
( 2 )
$1,499.99
Trail-Gear Rock Assault Fully Built Axle Assemblies
Trail-Gear offers fully built Rock Assault front and rear axles made of entirely new parts and customized to your choices. They include everything needed from hub-to-hub, and are expertly assembled by TG's master mechanics. Save yourself time, money, and the hassle of ordering each component separately and then building it yourself. You make the choices and let Trail-Gear do the assembly! Select your kit. Front and Rear Rock Assault fully built axles feature: * 5/16 in. thick, high-strength DOM axle tubes that engage 5/8 in. further into the center section and the 360-degree gusset welded around the tubes on the inside of the housing * Axle tubes have been offset above the housing centerline to allow the inner axles to ride near the bottom of the axle tubes rather than in the center * Increase of 3/8 in. ground clearance under the axle tubing * Heavy-duty, press-formed, 1/4 in. plate steel center section shell is specially shaped to ensure a minimum of 3/4 in. additional clearance under the differential * Differential mounting surface is made from 1/2 in. plate steel Rear axle kit contents and features: * Rock Assault axle housing * Complete rear disc brake kit * Chromoly axle shafts * Bearing pockets * Rear axle bearing service kit * All necessary nuts and studs * Outer offset flanges are made from 4130 chromoly to prevent distortion or bending * Housings are precision aligned using start-of-the-art, 3D digital imaging equipment * Customize each axle to exactly what you need with your choice of: -- Axle width -- Differential Front axle kit contents and features: * Toyota Rock Assault axle housing * Upgraded Longfield 30-spline Birfields * 30-spline chromoly axle shafts * Fully Loaded Six-Shooter knuckle kit * Chromoly spindles * Upgraded brake rotors and calipers * Heavy-duty tie rod and drag link * Trail-Gear's upgraded Trail Safe seals * Super Metal knuckle studs * All necessary nuts, bolts and seals * 59 in. from WMS to WMS * Knuckle balls are forged from 1035 steel * Customize each axle to exactly what you need with your choice of: -- Axle width -- Axle offset -- Differential -- Hubs or flanges
Not Yet Reviewed
$4,599.99
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$7,599.99
Centerforce SST Clutch and Flywheel Kits
Introducing the new Centerforce SST (Solid Street Twin) clutch and flywheel kits—engineered and developed for vehicles producing 400 to 925 lbs.-ft. of torque. The SST discs utilize solid hubs to reduce the rotational weight on the input shaft for quick clean shifts. The discs in the assembly are built using high-quality friction materials, for smooth engagement and longevity. These SST clutch and flywheel kits feature a lightened billet steel flywheel, providing low inertia resulting in quicker rpm and the Centerforce anti-rattle system to reduce floater rattle/noise. In addition, no complicated setup or adjustments are required, just bolt in the clutch and flywheel kit application you need—and "get a grip"! For streetcar enthusiasts looking for a high-quality Twin disc clutch system, the Centerforce SST clutch and flywheel kits are an economical choice. Key features and benefits: * Positive drive floater * Easy pedal * Precision balanced * Smooth engagement * Spec card included * ARP hardware * Solid hub for light weight and quick shifts * Simple install
( 8 )
$1,259.95
Centerforce DYAD DS Clutch Kits
Drivers need a clutch that offers smooth engagement, quiet operation, light pedal effort, and high-end holding capacity. Centerforce DYAD drive system multi-disc kits offer that, and more. These kits are designed and developed to meet the needs of modern high-end vehicles. This technology allows engine torque levels to exceed 750 lb.-ft. and still be driven every day. Take your vehicle to the next level in high performance with DYAD DS multi-disc clutch kits and feel the difference!
( 1 )
$1,816.95
Sachs Stock Replacement Throwout Bearings
Sachs Stock Replacement offers throwout bearings for a wide range of applications. These parts are used on vehicles with a manual transmission. They're part of the mechanism that disengages or releases the clutch when the driver presses down on the clutch pedal—which is why they're often referred to as a clutch release bearing. Each bearing is machined to factory specifications to ensure proper fit and performance.
Not Yet Reviewed
$27.99
Centerforce Billet Steel Flywheels
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.
( 62 )
$409.95
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$419.95
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.
( 330 )
$265.99
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$891.99
ACT Heavy-Duty Clutch Kits
ACT heavy-duty clutch kits offer a clamp load increase of 20 to 50 percent over OEM, significantly increasing torque capacity. The pedal feel with these clutches varies from stock to a moderate increase. Available for street and race applications, many are SFI-certified to ensure safety.
( 87 )
$477.99
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$849.99
ACT Race Clutch Discs
ACT race clutch discs are available in three distinct styles--choose the options that best suit your application. Spring-centered discs are the most popular and feature reduced driveline shock and spline wear with quieter operation. Rigid-hub versions offer improved durability but increase gear noise and spline wear. For either of those hub designs, you can choose six pads for better heat management and engagement, or four pads for the quickest shifting. Sintered iron discs offer the highest torque capacity and ultra-high heat capacity. They're designed for cars using clutch-less shifting or drag racing transmissions. Additional product details: * Premium ceramic friction materials provide high-heat tolerance, high coefficient of friction, and low wear rates * Carefully broached splines provide exact fit onto the transmission input shaft for long spline life and better clutch release * Heavy-duty torsional dampening springs are provided in the best sizes and spring rates to help reduce noise * Drive plates are made of high-carbon steel; heat-treated and black zinc coated to resist bending, cracking, fatigue, and rusting * Certified to SFI specifications
( 23 )
$156.00
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$220.00
ACT Prolite Xact Flywheels
ACT Prolite Xact flywheels provide a quicker throttle response and improved acceleration. They're CAD-designed, CNC-machined, and computer-balanced for quality and precision. The manufacturing process includes chromoly forgings with induction-hardened integral ring gears for maximum life. Prolite Xact flywheels are stronger and more durable than billet steel, aluminum, or cast iron! Dozens of models are available—order the one designed for your vehicle. More product features include: * Smooth operation at all RPMs * Optimal mass distribution * Lead-in chamfers * Heat-treated and tempered
( 42 )
$332.00
ACT Sport Clutch Kits
ACT Sport clutch kits optimize the road to high performance by meshing solid products, outstanding quality, and exceptional value. They're crafted from CNC-machined parts and computer-balanced with no loose pieces to wear out or rattle for quiet, trouble-free operation. These Sport clutch kits with street discs are based on solid engineering principles, affording a clamp load increase of 20 to 40 percent with moderate pedal feel, and many of these new, not rebuilt units are SFI-certified to ensure safety. Get the power of your engine in motion with the smooth, precise feel and longer life of the ACT Sport clutch kits.
( 8 )
$421.00
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$496.00
Sachs Stock Replacement Flywheels
Replace your worn-out or malfunctioning flywheel with one of Sachs Stock Replacement flywheels. These quality components are built to OEM specifications to offer the same fit, form, and function as the factory part, which means a safer, more comfortable, and contemporary drive. All Sachs Stock Replacement flywheels are designed to provide superior performance and dependability to help restore your vehicle back to its proper operation. Choose the replacement flywheel designed to fit your application needs.
( 2 )
$76.99
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$117.99
Sachs Stock Replacement Clutch Slave Cylinders
Replace your worn-out clutch slave cylinder with affordable Sachs Stock Replacement parts. These components are built to OEM specifications to offer the same fit, form, and function as the factory component. The clutch actuation system for cars transfers the pressure of the driver's foot on the pedal to the clutch. As result, this ensures absolute reliability, meet ergonomic requirements, and provides a high level of comfort throughout its entire service life. The actuation system includes the hydraulic transmission path with master and slave cylinder, as well as the mechanical part with the clutch release bearing and the lever. All Sachs clutch slave cylinder components are designed to provide superior transmission shifting and dependability to help you restore your vehicle back to its proper operation. Select the model for your application needs.
( 2 )
$21.99
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$65.99
