Transmission & Drivetrain
Availability
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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TransGo's Performance shift kits give you the hard-launching, tire-blazing shifts you want, after just a few hours' work with basic hand tools. TransGo even has kits for computer-controlled, 4-speed automatics. Their performance shift kits can be installed with the transmission in the vehicle and they come with complete instructions. Some kits even include a step-by-step video to walk you through the installation process.
( 501 )
$37.16
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$231.43
B&M Shift Improver kits are the easiest way to get the stout performance you've always wanted out of your automatic transmission. All you need are some hand tools and an afternoon, and you can turn your transmission into a B&M-tuned unit. Each kit has two stages to fit your needs: RV/Towing and Street/Strip.
( 107 )
$85.05
TCI Trans-Scat valve body kits offer you two options: you can either have good, solid shifting that's well suited to towing, or you can have competition-style shifting. These kits eliminate slippage and lag, improve fuel economy, extend clutch life, and really improve the 2nd and 3rd gear shifts. In addition to delivering crisper shifting, they allow you to downshift on demand, and most will allow you to hold first gear for extended periods, such as when climbing long hills while towing. All kits give you the full range of normal automatic functions when in "drive."
( 20 )
$125.95
TCI TH700-R4 kickdown kits prevent a forced part throttle kickdown from fourth to third gear, to allow cruising at high speeds in overdrive. With the kits installed, the transmission will only kick down from fourth to third at 3/4 throttle.
( 1 )
$95.95
Lokar floor mount cable conversion kits facilitate changing your automatic transmission shifting style from rod linkage to cable operation. These components allow the cable to be routed around obstacles and mounted in virtually any location. When paired with Lokar's durable push/pull 1/4 in. cable and spherical rod ends, your shifter will rise to the next level of performance. Make your conversion an easy process with shift assembly parts from Lokar.
( 5 )
$118.95
Upgrade your automatic transmission with ATP shift improver kits. Sluggish shifts are replaced with faster shifts and the strong performance that you expect from your vehicle. ATP shift kits improve performance and extend the life of your transmission. Make your healthy transmission healthier with the addition of ATP automatic transmission shift improver kits.
Not Yet Reviewed
$64.99
Shiftworks shifter conversion kits offer shifter solutions for a variety of make/model vehicles. If you've tried to use your factory-installed console or automatic floor shifter when swapping out your old transmission, you soon realize that it doesn't fit. But, with Shiftworks kits, they will. These assemblies have what you need to keep your classic ride looking original and shifting with modern performance. Whether you're replacing your Powerglide or upgrading to an overdrive transmission, your favorite factory shifter will still be there—and working great—thanks to Shiftworks shifter conversion kits.
( 71 )
$111.99
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$282.99
Summit Racing™ Corvette-style servo piston kits allow you to swap out your OEM servo on your 700R4 or 4L60E/4L65E automatic transmission and improve shift quality and firmness. They have a larger piston area which increases band-apply pressure and holding power. These kits are drop-in upgrades and will really firm up the 1-2 shift. Includes both pistons and all necessary O-rings.
( 17 )
$20.99
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$74.99
Sonnax Sure Cure automatic transmission rebuild kits are a comprehensive reconditioning package—featuring the best Sonnax products developed to help mechanics restore and enhance transmission performance. Sure Cure components are the same Sonnax parts sold individually to resolve common valve body complaints, as well as other transmission problems. The high-quality components in each Sure Cure kit will repair worn areas and protect the transmission against future damage. Plus, each kit comes with an easy-to-read, step-by-step installation guide that covers inspection and repair of the most critical areas of the valve body. Additional features and benefits: * Restore shift quality and reduce comebacks * Repairs biggest trouble areas to reduce comebacks * Includes step-by-step instructions for comprehensive valve/pump body restoration Kits Include: * Shims (2) endplay * Pump slide pivot pin * Throttle valve plunger valve kit * Shortened TV link * TV cable corrector kit * Seals D-ring servo * 1-2 or 3-4 accumulator spring * Servo release check valve kit * Reverse boost valve kit * Oversized pressure regulator valve * Pinless 1-2 or 3-4 accumulator piston kit * TV boost valve kit * Bushing pump * Bushing rear stator support * Checkballs
( 6 )
$159.78
TCI Pro Super transmission overhaul kits contain the same parts and pieces used in building TCI Streetfighters. You will receive components normally replaced on a transmission rebuild, along with new performance frictions and steels, plus a Trans-Scat valve body kit, which enables you to change the valve body to a manual/automatic setup that delivers both a good solid shift suitable for towing applications and a competition-quality shift for drag racing. Features: * Seals, gaskets, and bushings * High performance frictions and steels * Reusable-type pan gasket * Adjustable modulator * High-volume filter * Drain plug kit * Trans-Scat valve body kit * Performance band included in 700R4, 4L60E, and 2004R kits as they normally require a band during regular repair cycles
( 87 )
$348.95
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$484.95
B&M Transkits give you the same high-quality components that are used in all B&M Street and Strip transmissions. They include high performance friction materials, a complete overhaul gasket set, a drain plug kit, and all of the parts necessary to convert your valve body into a full manual/automatic valve body. These improvements enhance shift feel, while retaining full automatic features. The Transkits come complete with full instructions on how to assemble your transmission to B&M specifications (except BMM-70232 and BMM-70233). They also include special directions on how to modify your case, pump, and components.
( 44 )
$649.95
TCI Maximizer rebuild kits are ideally suited for off-road, towing, and other severe-duty applications. Each kit contains gaskets, seals, new premium-quality frictions, steels, a high-volume filter, and a drain plug. Also included are valve body recalibration modifications, which provide crisper shifts without the harsh feel found in kits designed for racing. Durability is improved because less heat is generated per shift than is associated with the OEM shift characteristics. TCI Maximizer rebuild kits also increase the torque capacity of the transmission to make towing or off-roading a breeze.
( 18 )
$373.95
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$374.95
Summit Racing™ Governor recalibration kits allow you to raise or lower, relative to vehicle speed, the points where your transmission shifts. This is accomplished by a system of combining a variety of weights and springs in your governor, modifying the vehicle speed signal your transmission's shift valves receive. These kits can greatly improve the peak performance and enhance the drivability of the vehicle. They are very useful for transmission swaps, or if you have a car that is very light or has a low rear gear ratio. These kits also work great for bracket cars retaining an automatic 1-2 shift.
( 3 )
$87.99
B&M governor recalibration kits will allow you to adjust the shift points of your transmission after it is installed in your vehicle. These kits are very useful for transmission swaps, or if you have a car that is very light or has a low rear gear ratio. They also work great for bracket cars retaining an automatic 1-2 shift.
( 33 )
$125.95
Governor recalibration kits from TCI will allow you to adjust the shift points of your transmission after it is installed in your vehicle. These kits are very useful for transmission swaps, or if you have a car that is very light, or has a low rear gear ratio. They also work great for bracket cars retaining an automatic 1-2 shift.
( 27 )
$130.95
If you're one of the millions of GM drivers with 700R4 or 4L60E/4L65E automatic transmissions that experience sluggish shifts, especially into second gear, you should consider swapping out your OEM servo for an ATI servo piston kit. Their piston kits are CNC-machined from 6061 T6 aluminum and are an easy upgrade. Don't be fooled by other servo assemblies that are nothing more than cleaned up OEM parts—ATI Performance Products has been producing quality performance-enhancing internal transmission components for decades.
( 3 )
$21.10
These Sonnax 2nd Gear Corvette ratio servo kits provide increased apply area resulting in improved holding power for firmer 1-2 and 3-4 shifts in 4L60 (700-R4) and 4L60-E transmissions. The servo piston features D-rings in place of the OE seal rings for improved sealing during apply and release. They are compatible with Sonnax 4th Gear Super Hold dual servo kits. Sonnax 2nd Gear Corvette ratio servo kits include: * Piston * 2 Piston D-Rings * Housing * Housing O-Ring
( 2 )
$57.53
Lokar's floor mount automatic transmission shifters follow in the footsteps of their parent transmission mount and tailmount shifters, having been designed with the same superior craftsmanship. The exclusive floor mount brackets allow for installation above or below the floor on the transmission tunnel. These kits include a quad arm with quad arm offsets for mounting to the right or left. Removal of the transmission is not necessary. The floor mount shifters are equipped with all of the expected safety features of a Lokar shifter. Many options are available, including transmission application.
( 44 )
$425.95
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$502.95
On Sale
Know what gear you are in with Classic Instruments gear selector sending unit kits. These kits include a transmission-mounted sensor and interface module that works with Classic Instruments' gear selector gauges or individual LED indicator lights. Features: * Kit includes mounting hardware * Works with most 3- and 4-speed automatic transmissions * Easy push-button calibration * Also works as backup light trigger or neutral safety switch
( 4 )
$178.95
$98.95
These Lokar indicator control modules are designed to control the LED indicator display. They are made of billet aluminum and include all necessary mounting hardware. They are available for a dash mount or shifter boot mount, and the LED display is sold separately.
( 8 )
$277.95
These TransGo 3-4 and forward clutch spring kits are a necessity for use over 5400 RPM. They function by preventing centrifugal apply and also allow easier downshifts. Best of all, they will function with original or additional amounts of clutches.
( 3 )
$35.76
TCI trans-brake kits allow you to achieve maximum torque converter stall for quicker and more consistent reaction and 60 ft. times. They work like this: When the trans-brake is engaged, the vehicle can roll neither forward nor backward, and as you press on the accelerator, the engine can rev as high as the torque converter stall. Once the brake is released, power is immediately transferred to the rear tires, with less parts breakage than with a manual transmission.
( 21 )
$667.95
Pioneer automatic transmission Super Kits are available for a variety of applications. These rebuild kits furnish all of the seals, gaskets, filters, bushings, bands, and other components needed to overhaul specific transmissions. The parts repair both internal and external leaks, while eliminating slips and shudders, restoring shift performance. Super Kits also include both friction and steel clutch plates. Assembling all of the small parts you'd need for a transmission rebuild would be a time-consuming and frustrating task. Everything you need is packaged together here for you. Order the kit recommended for your vehicle and transmission.
( 4 )
$284.99
FTI Performance 700R4 cable correctors are performance transmission parts that are designed to help maintain and adjust throttle linkage geometry to create optimum throttle opening. By making sure that your throttle valve cable is properly adjusted is essential for providing exact shift points and maintaining the life of your transmission. These cable correctors feature an easy-to-use design, and have a durable steel construction and come with all of the necessary parts and pieces needed for a clean installation. Ensure exact shift points in your 700R4 transmission with the installation of FTI Performance cable correctors.
Not Yet Reviewed
$39.50
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