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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Chevrolet Performance Transmission Installation Kits

Chevrolet Performance transmission installation kits connect your engine to your transmission. They are available for several applications and each includes flexplate, covers, fasteners, and instruction sheet. Install your transmission with Chevrolet kits.

Not Yet Reviewed

$160.60

Chevrolet Performance Torque Converter Lock-Up Kits

Listen up, performance enthusiasts—if you prefer automatics, you'll be interested in these torque converter lock-up kits from Chevrolet Performance. They're designed to adapt the 4L60 or 700R4 transmissions (non-electric version) in early-model GM vehicles. These transmission performance kits include a throttle valve spring for carbureted engines, a normally closed fourth gear clutch switch, a wiring connector for the torque converter, and an instruction sheet to facilitate the installation.

3.0 out of 5 stars ( 5 )

$87.04

PEM Racing Weld-On Snouts

PEM's weld-on snouts offer a robust and reliable solution for attaching components to thin metal sheets and are primarily used for repairing or modifying rear axles, typically in racing or performance applications. The snouts serve as a way to attach the axle to the axle tube, often for wider axles or custom builds. They are CNC-machined from alloy steel and have step for axle snout seal, and utilize a welding process to create a strong, permanent bond, ensuring that components stay securely attached. Choose the snouts that match your axle configurations and vehicle requirements.

Not Yet Reviewed

$44.99

Summit Bucks

Action Clutch Stage 5 Clutch Kits

Action Clutch single disc clutch kits contain a range of street to high performance clutch systems built using American materials which are all locally sourced, just as it has been done for 60 years. Each stage kit has its own advantages as well as its own formulated friction materials. As you move up in stage, the clamping force of the pressure plate increases to provide more torque capacity, while maintaining a comfortable pedal feel. Action Clutch's Stage 5 clutch kits for race applications and heavy track use feature their extremely durable high performance MIBA sprung ceramic disc available in 4- and 6-puck styles with the 4-puck being the more aggressive. These kits offer nearly double the clamping force of the Stage 3 and 4 kits, increasing torque capacity. Engineered for low/mild horsepower vehicles, Stage 5 kits create quick engagement, as well as clutch chatter, which should be minimal once proper break-in is completed. Pressure plate and clutch disc features: * Clutch covers feature ductile iron friction plate * Reinforced heavy-duty drive straps for increased durability * 4-stage, heat-treated diaphragm spring * 100 percent dynamically spin balanced * American grade rivets * MIBA friction ceramic material pads * Full enclosed spring retainers * Sprung hub for easy engagement In the box: * Stage 5 clutch disc * Dual clamp load HD pressure plate * Release bearing * Pilot bearing/bushing (when applicable) * Clutch alignment tool * Information sheet * Action Clutch swag

Not Yet Reviewed

$455.81

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$934.96

Summit Bucks

Action Clutch Stage 6 Clutch Kits

Action Clutch single disc clutch kits contain a range of street to high performance clutch systems built using American materials which are all locally sourced, just as it has been done for 60 years. Each stage kit has its own advantages as well as its own formulated friction materials. As you move up in stage, the clamping force of the pressure plate increases to provide more torque capacity, while maintaining a comfortable pedal feel. Action Clutch's Stage 6 clutch kits for heavy-duty drag, road, and drift racing utilize their extremely durable high performance MIBA sprung ceramic disc available in 4- and 6-puck styles with the 4-puck being the more aggressive. These kits offer nearly double the clamping force of the Stage 3 and 4 kits, increasing torque capacity. Engineered for low/mild horsepower vehicles, Stage 6 kits create a quick engagement as well as some clutch chatter, which should be fairly minimal once proper break-in is completed. Pressure plate and clutch disc features: * Clutch covers feature ductile iron friction plate * Reinforced heavy-duty drive straps for increased durability * 4-stage, heat-treated diaphragm spring * 100 percent dynamically spin balanced * American grade rivets * MIBA friction ceramic material pads * Rigid hub-type In the box: * Stage 6 clutch disc * Dual clamp load HD pressure plate * Release bearing * Pilot bearing/bushing (when applicable) * Clutch alignment tool * Information sheet * Action Clutch swag

Not Yet Reviewed

$424.96

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$747.96

Summit Bucks

Action Clutch Stage 4 Clutch Kits

Action Clutch single disc clutch kits contain a range of street to high performance clutch systems built using American materials which are all locally sourced, just as it has been done for 60 years. Each stage kit has its own advantages as well as its own formulated friction materials. As you move up in stage, the clamping force of the pressure plate increases to provide more torque capacity, while maintaining a comfortable pedal feel. Action Clutch Stage 4 clutch kits are designed for heavy-duty drag, road, and drift racing. These kits have an on-and-off engagement, are recommended strictly for race purposes, and are engineered for low/mild horsepower vehicles. These Stage 4 MIBA unsprung ceramic kits create quick engagement, as well as some clutch chatter, which should be minimal once proper break-in is completed. Available in a 4- and 6-puck configuration, the 4-puck is more aggressive. After each kit is assembled, it goes through multiple quality checks, ensuring the best quality for you. Select the kit designed for your vehicle. Pressure plate and clutch disc features: * MIBA Friction ceramic material pads * Reinforced heavy-duty drive straps for increased durability * 4-stage, heat-treated diaphragm spring * 100 percent dynamically spin balanced * American grade rivets * Rigid hub type In the box: * Stage 4 clutch disc * Single diaphragm HD pressure plate * Release bearing * Pilot bearing/bushing (when applicable) * Clutch alignment tool * Information sheet * Action Clutch swag

Not Yet Reviewed

$356.40

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$705.46

FTI Performance SST Series Torque Converters

FTI Performance SST Series custom-order torque converters are available for use with a variety of transmissions, including Powerglide, THM350, and THM400. The 9 in. units are used by top drag racers. A torque converter is what transmits torque from the engine to a rotating driven load. It's a type of fluid coupling which allows the engine to spin somewhat independently of the transmission. SST Series torque converters are available with a 0-blade stator for a turbo spline, or the looser 6T stator model.

Not Yet Reviewed

$1,149.00

FAG USA Multi-Purpose Oil Seals

FAG USA multi-purpose oil seals are engineered using only the highest-quality materials to meet vehicle manufacturer specifications. The seals are designed to protect wheel end components from contamination, such as dirt, dust, and moisture—and prevent the loss of grease over the life of the bearing. Order the size recommended for your application.

2.0 out of 5 stars ( 1 )

$4.99

ACDelco GM Genuine Parts Automatic Transmission Shifter Cables

Is your shifter cable worn or damaged? ACDelco GM Genuine Parts shifter cables provide reliable shifting performance. Manufactured from top-quality materials, these shifter cables fit your stock shifter assembly and install in the stock location. They are a GM recommended replacement for your vehicle's original component and are manufactured to offer you the same performance, durability, and service life you expect from General Motors.

4.35 out of 5 stars ( 34 )

$113.99

Chevrolet Performance Automatic Transmission Detent Cables

Chevrolet Performance automatic transmission detent cables offer excellent quality, fit, and function to restore your vehicle's proper operation—and your peace of mind. Choosing the appropriate parts to repair and maintain your vehicle is pertinent to it's operation. These automatic transmission detent cables are designed to meet or exceed original equipment specifications for fit, form, and function—and for you, that means you regain the performance, reliability, and durability you've come to expect from Chevrolet Performance.

Not Yet Reviewed

$89.99

Chevrolet Performance Flexplates

These flexplates from Chevrolet Performance are designed to be direct replacements for your stock flexplate. They provide the same high-quality performance as your original and are available for a variety of applications.

4.47 out of 5 stars ( 19 )

$340.68

LuK Clutch Kits

Clutches are subjected to continuous wear and tear. LuK clutch kits are made with premium quality components, engineered and manufactured to be problem-free. These kits are functionally tested to meet OEM performance specifications and provide an innovative and quality engineered clutch kit. As an original equipment supplier, LuK develops the performance specifications for individual vehicle applications.

4.42 out of 5 stars ( 384 )

$124.99

TCI PRO-X Torque Converters

These TCI PRO-X torque converters are designed specifically for Top Sportsman, Top Dragster, and Outlaw Street Car classes. Able to handle 2,500+ hp applications (including multi-stage, nitrous-assisted, supercharged, and twin turbocharged engines), these high-strength torque converters feature a TCI exclusive--HDT (Heat Dissipating Technology) Coating--further enhancing their ability to deliver unsurpassed consistency and durability. Features include: * Hand-built steel stator * Forged mounting cover * 3 sets of heavy-duty internal bearings * Furnace-brazed turbine and pump assembly * Built for GM, Ford, and Chrysler transmissions * 4 or 6-bolt flanges and optional billet front available

Not Yet Reviewed

$1,794.95

TCI Competition Torque Converters

TCI Competition torque converters are proven race winners and an excellent choice for stock and Super Stock cars. They work well with both big and small blocks, producing power between 4,500 and 7,000 rpm. You'll maintain engine rpm between shifts with their efficient design, and gain improved reliability with an oversize caged bearing supporting a new stator. ETs are more consistent and reaction times faster as a result of a stronger housing, which resists flexing and ballooning.

4.11 out of 5 stars ( 9 )

$1,489.95

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$1,645.95

Fidanza Billet Aluminum Flywheels

Fidanza billet aluminum flywheels feature excellent heat dissipation and weight reduction. The replaceable friction surface is machined from 1045 steel and attached with military-grade aerospace fasteners. These flywheels are manufactured from the highest quality 6061-T6 billet aluminum and feature a 1050 heat-treated steel ring gear that's pressed on and secured with Grade 8 button screws. They also use a stepped dowel system so that when the parts are installed they're locked into place. No chromoly can compete with the awesome serviceability, strength, and superior design of Fidanza billet aluminum flywheels—available in nearly 200 models and options for applications from the 1940s and up.

4.71 out of 5 stars ( 35 )

$346.49

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