2012 Transmission & Drivetrain - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Eaton Detroit Truetrac Differentials

Eaton Detroit Truetrac differentials use a patented design of parallel-axis planetary helix gears to provide a quiet, automatic splitting of torque. They perform like a limited-slip differential under normal driving conditions, automatically transferring torque to the wheel with better traction when ground conditions warrant. These replacement units are available for dozens of axle applications.

4.77 out of 5 stars ( 512 )

$642.99

—

$1,299.99

Yukon Gear & Axle Dura Grip Positraction Carriers

Yukon Gear & Axle Dura Grip positraction carriers offer great traction and strength, and yet are not overly aggressive for the streets. These nodular iron or steel replacements are 4-spring, Raybestos composite, clutch-style, limited-slip carriers—with internal gears machined from forged 4320 steel with stronger teeth. Assembled in the USA, the Yukon differential carriers are rebuildable, allowing for repairs or modifications without buying a new unit. They're available for fitment with nearly two dozen axle models. What are you using to transfer power? Choose smooth operation with strong lockup abilities to transfer torque—benchmarks of the Yukon Gear & Axle Dura Grip positraction carriers.

4.38 out of 5 stars ( 141 )

$394.00

—

$1,719.99

FTI Performance SB Series Torque Converters

FTI Performance SB Series torque converters are an excellent choice for mildly modified engines. They work well in street rods with air conditioning, as well as weekend bracket racers. The converters feature Torrington bearings, hardened impeller hub, hub furnaced and TIG-welded fins, high performance clutch lining, and strengthened sprague.

4.21 out of 5 stars ( 85 )

$651.60

—

$719.00

McLeod RST Street Twin Clutch Kits

Intended for high-horsepower street fans, the McLeod RST Street Twin clutch kits are economically priced twin disc clutches that use your existing flywheel. Able to handle up to 800 hp, the RST Street Twin clutches remain completely street-drivable. The organic lined clutch discs provide smooth engagement with a soft pedal effort, making these clutch kits ideal for the street performance enthusiast. (For select vehicles where these clutches are not adaptable to your existing flywheel, a new flywheel is included in the kit.) Here are some additional features of the McLeod RST Street Twin clutch kits: * Alignment tool included * Lighter-than-stock pedal feel * Will bolt to factory flywheel * CNC-machined and anodized flywheel adapter ring * Organic disc facing for smooth and even clutch engagement with excellent release qualities * Low rotating mass for quick revs * Blanchard ground floater with multiple straps to reduce noise for streetability

4.49 out of 5 stars ( 84 )

$825.00

—

$1,595.00

McLeod RXT Street Twin Clutch Kits

McLeod RXT Street Twin clutch kits are ideal for the extreme horsepower enthusiast who wants performance and economy. Capable of handling up to 1,000 hp, the RXT Street Twin clutches are for those who've kicked it up another notch—but still require streetability. The ceramic facing on the clutch discs provides slightly aggressive engagement with a soft pedal effort, making these clutches suitable for most street performance enthusiasts. Match your vehicle specs to the correct model from McLeod. Additional features include: * Alignment tool * Lighter-than-stock pedal feel * Available with dedicated flywheel or adapter ring for factory flywheel * CNC-machined and anodized flywheel adapter ring * Smooth engagement with excellent release qualities * Ceramic facings on disc increase holding power over similar organic linings * Low rotating mass for quick revs * Blanchard ground floater with multiple straps to reduce noise for streetability

4.68 out of 5 stars ( 47 )

$995.00

—

$1,895.00

Summit Bucks

Valair Performance Quiet Street Dual Disc Clutch Kits

Diesel trucks are designed for towing heavy loads. If your rig is running 500 to 650 hp, then Valair Performance Quiet Street Dual Disc clutch kits are the way to tow. They feature tough heavy-duty parts, strong pressure plates, and a nodular iron flywheel. These kits are not intended for racing or competition use. Quiet clutch kits eliminate floater plate rattle when the clutch is pressed in, but gear rollover noise is inevitable when changing to a solid mass flywheel. It's often heard when the vehicle is under load at low rpm or idling, and it sounds like marbles in the transmission. Please educate yourself before purchase. Towing is tough on your vehicle—keep the pressure high and the shifts solid with a Valair Performance Quiet Street Dual Disc clutch kit, available for a variety of specific transmission applications.

4.56 out of 5 stars ( 9 )

$1,713.16

South Bend Clutch Dyna Max Street Dual Disc Clutch Kits

South Bend Clutch Dyna Max street dual disc clutch kits are offered for a range of applications and setups. These clutch kits are made using high performance materials and include everything you need for your clutch installation. Many kits include Kevlar® pilot bushings. When it comes to street performance, you can count on South Bend for top-quality components.

4.84 out of 5 stars ( 79 )

$1,157.19

—

$1,769.82

Summit Racing™ Automatic Transmission Rebuild Kits

On average, transmissions last between 30,000 to 50,000 miles before requiring maintenance. When that milestone occurs, Summit Racing™ offers automatic transmission rebuild kits for more than a dozen transmission models spanning a half-century. The kits include all-new clutches, oil seals, gaskets, lip seals, and a transmission filter. These rebuild components are an economical way to restore performance. Order the kit recommended for your application.

4.58 out of 5 stars ( 36 )

$282.99

Warn Premium Manual Hubs

Warn's premium manual hubs feature a no-compromise design for the hardcore off-roader or truck owner who will accept nothing less than the industry standard in performance. Their all-metal construction and ZA alloy dial ensure years of reliable functioning. The dial requires a full 9/10 of a turn to ensure positive engagement of the inner drive gear to the clutch ring. To make sure that they stay engaged, Warn premium hubs use a thick internal wave spring and heavy dial detents.

4.64 out of 5 stars ( 201 )

$385.99

FTI Performance SRL-3 Series Billet Triple Clutch Torque Converters

FTI Performance SRL-3 Series billet triple clutch torque converters are designed for engines with some serious power! They're engineered to be locked up under full throttle and can withstand some abuse. The billet lockup piston, triple bearings, and anti-ballooning impeller hub are designed to get the job done. These converters are available in different stall torque ratios and stall ratings to match your engine and transmission combination.

3.86 out of 5 stars ( 7 )

$1,429.00

South Bend Clutch Dyna Max Organic Clutch Kits

South Bend Clutch Dyna Max organic clutch kits are manufactured with performance organic friction material. Designed to provide smooth clutch engagement, these Dyna Max organic clutch kits include the necessary parts you need to do the job—and many kits include Kevlar® pilot bushings. The kits are available for a variety of clutch styles and applications and may come with or without a flywheel. Select the kit to fit your application needs.

4.71 out of 5 stars ( 103 )

$656.30

—

$1,421.66

PRW Black Label Special Edition Flexplates

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

4.71 out of 5 stars ( 7 )

$110.29

—

$147.89

McLeod Steel Flywheels

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.

4.42 out of 5 stars ( 103 )

$329.00

—

$429.00

On Sale

B&M Tork Master Torque Converters

Tork Master converters are B&M's most affordable performance torque converters. They feature precision pump drive tubes and are pressure tested, fully balanced, and ready to install. The Tork Masters are excellent all-around performance street converters. They are not recommended for big block or supercharged applications.

4.41 out of 5 stars ( 196 )

$460.95

$413.95

TCI Machined Flexplates

For serious performance, TCI machined SFI-approved flexplates are a "must have". These .140 in. thick flexplates are constructed of A514 Blanchard ground steel and are SFI 29.1 approved. TCI offers a complete line of Chrysler and Ford flexplates with GM and Ford bolt patterns for use with their adapter plate kits as well as neutral balanced flexplates with 168-tooth and 166-tooth starter rings for Chevy and Pontiac applications. Now you can speed down the track with the confidence of TCI machined SFI-approved flexplates.

4.73 out of 5 stars ( 60 )

$231.95

—

$427.95

Chevrolet Performance Flexplate Dust Covers

These Chevrolet Performance flexplate dust covers are direct stock replacements providing protection from street grime and stones. They are manufactured from quality materials and install in the factory location with no modifications. The dust covers are available for different transmission models, so you can choose what's best for your specific transmission model.

4.67 out of 5 stars ( 36 )

$245.53

J.W. Performance Ultra-Bell Bellhousings

Using the latest technology, J.W. Performance has come up with these Ultra-Bell bellhousings. Built rugged and certified, these flexplate shields allow for special motor and transmission combinations to be easily mated together. Manufactured from one-piece cast aluminum, these Ultra-Bells are five times stronger than stock bellhousings, which makes them capable of withstanding even the most severe tire shake and can fit under most stock floorboards. Order the Ultra-Bell bellhousing designed to fit your application.

4.63 out of 5 stars ( 79 )

$469.88

—

$548.75

Spicer Drivetrain Products Front Axle Shafts

Spicer Drivetrain Products front axle shafts feature an increased U-joint size that provides 25 percent higher yield strength than original U-joints. They offer unparalleled strength and longer life—the outer stub is re-engineered for added strength; improved snap ring retention reduces shock load failures; and material has been removed from the body and added to the yoke ears (to equalize deflection through the yoke and reduce bearing cap spinning). The axles are made from durable steel, with a micro-alloy improving their strength and a statistically controlled heat treatment ensuring proper hardness. Order the replacement model designed for your vehicle application.

4.6 out of 5 stars ( 131 )

$96.99

—

$1,327.99

South Bend Clutch Hydraulic Assemblies

It's common for clutch hydraulic systems to become aged or weak, meaning you won't be able to select gears in the transmission. Even if your hydraulics are still working properly, if you're upgrading the clutch in your truck (or plan to), it might be time to invest in a heavy-duty hydraulic assembly from South Bend Clutch. Some factory hydraulic assemblies aren't up to the task of handling a dual-disc or even a stronger single-disc clutch. Purchasing upgraded hydraulics at the same time you order your performance clutch is highly recommended. South Bend Clutch hydraulic assemblies are engineered to enhance your vehicle's performance. They are made to stringent quality standards to ensure exceptional durability and years of trouble-free service. The kits are complete, typically including a master cylinder (adjustable on select models), slave cylinder, remote reservoir, and braided stainless steel hoses. South Bend Clutch replacement hydraulic assemblies are ready to work hard and play hard--just like your rig.

4.42 out of 5 stars ( 67 )

$332.95

Valair Performance Street Dual Disc Clutch Kits

Valair Performance Street Dual Disc clutch kits are designed for the street warrior who occasionally tows lighter loads (like a ski boat)—or the heavy towing rig with up to 550 hp. These two distinctive kit styles are each constructed from high-quality parts for excellent service. Dual discs have a wider range and greater holding power than singles, yet with similar driving characteristics. Street Dual disc kits come complete with important items like a new flywheel, pressure plate, and throwout bearing. Models are available for specific vehicle applications from the 1990s and up. Put extra power to the ground with a Valair Performance Street Dual Disc clutch kit.

3.71 out of 5 stars ( 7 )

$1,467.54

Eaton Posi Performance Differentials

Big torque doesn't have to mean big traction problems. Eaton Posi Performance differentials combine carbon friction discs with precision-forged gears to give you great traction, even under higher torque loads. Plus, the carbon friction discs produce smooth, quiet performance for the life of your vehicle.

4.65 out of 5 stars ( 105 )

$699.99

—

$911.99

RAM Concept 10.5 Dual-Disc Organic Clutch Kits

RAM Concept 10.5 dual-disc organic clutch kits usher in a new era of RAM clutch design. The Concept kits introduce modular dual-disc systems with effective performance improvements. Perfected design, better performance, and a competitive price ... what an idea! Designed for use on applications with horsepower rating of up to 750. RAM Concept 10.5 dual-disc organic clutch kits feature: * Higher clamp load 10.5 in. pressure plate offers smooth pedal effort and more surface area to dissipate heat * Poly-coil sprung hub top disc allows for dampening on engagement to eliminate harsh starts and transmission fatigue * Billet modular stands are precision-machined to eliminate distortion and provide a stable platform to house the clutch unit

3.86 out of 5 stars ( 7 )

$939.00

—

$1,149.00

Spicer Drivetrain Products Differential Cover Kits

Rust, rocks, and road debris all take part in destroying differential covers—so Spicer Drivetrain Products introduces a line of axle-specific replacements. These kits include a new cover, plug, and installation bolts for an all-new look. They're available in a variety of materials and finishes for high strength and good looks. The differential covers are offered for the front or rear with select options for your particular application.

4.79 out of 5 stars ( 104 )

$43.99

—

$229.99

Summit Racing™ Automatic Transmissions

Summit Racing™ Automatic Transmissions combine quality and economy to offer replacement transmissions in many styles and options. These units are remanufactured with all-new clutches, thrust washers, seals, bushings, and high-energy bands, along with other "failure prone" hard parts depending on unit. Other features include a rebuilt front pump, a valve body with shift for street and performance and high-quality seals and gaskets. You get all these impressive upgrades, along with reliable performance and extreme value. All transmissions are Dyno tested before they're shipped. Order the model recommended for your vehicle.

3.46 out of 5 stars ( 63 )

$4,039.99

—

$6,190.99