Availability
RAM truck pulling clutch kits are custom-assembled for your specific application. These units feature a heavy-gauge steel cover with welded spring guides and a steel pressure ring. Flywheels are available in 30 or 40 lb. weights, as well as in billet aluminum. The clutches can be set up with either 5135 or 5191 compound iron discs with 1 to 10 splines. Single disc slipper-style clutches can be used with engines producing up to 800 hp, or where very limited slipping is desired. These clutches utilize the same quality components as the RAM dual disc pulling clutches. These units can be assembled with your choice of sintered iron disc materials and flywheel weights. Dual disc clutches will allow a more controlled slip as the vehicle comes out, without severe wear or every-round maintenance. Dual disc clutches are built to fit different stock depths or deep bellhousings.
( 2 )
$1,850.00
Strange Engineering has developed the iconic Ford 9 in. rear axle into an extensive line of parts and complete HD Pro aluminum custom order assemblies that take advantage of the strengths of the original, while improving on strength, performance, and flexibility. These axles consist of forged aluminum pinion supports, with a lightweight steel spool or clutch posi unit and your choice of gear ratio in a standard gear, fully assembled with yoke. The most popular rear-end around is the Ford 9 inch unit; it is used by restorers, street rodders, and racers alike, regardless of what brand of car they're restoring.
( 2 )
$1,717.99
—
$2,021.99
Strange custom Ford 9 in. Pro Iron center sections will give you the perfect foundation for a high-quality, bulletproof rear differential. They feature a fully assembled nodular iron case, posi-unit/spool, upgraded pinion support, S-Series yoke, and ring and pinion set. Specification will be required to complete order. Please call us at 1-800-230-3030 for further information.
( 1 )
$1,594.99
—
$1,694.99
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
$1,779.95
—
$1,983.95
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.
( 9 )
$1,506.95
—
$1,914.95
Hughes Performance Street and Strip transmissions are made tough enough to deliver tire-spinning shifts race after race. They include internal and external racing components, which increase strength, reliability, and torque capacity. Plus, they feature Hughes' manual/automatic valve body to provide precise manual or fully automatic shifting. Choose the transmission type best suited for your vehicle.
( 30 )
$1,964.99
Hughes Pro-V series race converters are available from an entirely new casing and are built differently than Hughes' other full race torque converters. These units are the most aggressive race converters, delivering a hard hit off the line and a soft transition down track, with no loss in top-end efficiency and mph. They run faster than any other 9 in. converter Hughes has ever produced, and yet give consistency at 60 ft. that you won't believe, and still let you kill the tree. They also provide great reaction times, more aggressive stator, and a less aggressive fin angle.
Not Yet Reviewed
$1,633.99
—
$1,675.99
Strange Ford 9 in. lightweight aluminum center sections will give you the perfect foundation for a high-quality, bulletproof rear differential. They feature a fully assembled aluminum case with a full spool, forged aluminum pinion support, S-series yoke, and ring and pinion set. A specification sheet is required to be filled out prior to ordering.
( 2 )
$1,648.99
—
$1,794.99
Summit Racing™ TH400 transmission cases are a street/strip version of the TH400 aftermarket SFI transmission case. The bellhousing is not included and must be purchased separately. A direct replacement for the GM case, Summit Racing™ cases use a permanent mold casting to increase the case wall thickness, making it sufficient to pass SFI 4.1 certifications without the need for any external shields or internal liners. The 2-piece design allows them to be used with all popular engines by simply changing bolt-on bellhousings. Features include: * Speedometer and governor provisions * Longer band anchor pins captured by oversize bosses * Multiple external pressure taps allow for monitoring of circuit pressures * Accepts all style oil pumps, including 8-bolt and vari-pitch designs * Heli-coiled bellhousing and oil pump threads * Pre-machined to fit larger custom planetary gear carriers
( 2 )
$1,899.99
These Chevrolet Performance automatic transmission controllers include the wiring harness, controller, software, and laptop hookup. They are designed to allow for the use of electronically controlled transmissions in early model vehicles. Chevrolet Performance automatic transmission controllers are fully programmable for upshift, downshift, part throttle and wide-open shifts, and shift firmness. They come preprogrammed--just enter your rear tire diameter and rear axle ratio and go, or create your own custom shift characteristics. Chevrolet Performance automatic transmission controllers were originally developed by GM Racing for off-road truck racing. They have the ability to record and graph drag racing data like time, speed, shift point, engine rpm, and more.
( 1 )
$1,812.27
—
$2,100.48
FTI Performance SRL Series billet lockup torque converters feature a computer-designed, CNC-machined billet front cover and a billet lockup piston--making premature clutch wear a thing of the past. With custom stator designs and multiple blade angle pumps, stalls are available from 2,800-4,400 rpm. They are custom-built to your exact needs and driving style. With furnace-brazed and heli-welded fins, severe-duty sprague, and anti-ballooning flanged impeller hub, these torque converters are virtually indestructible.
( 16 )
$1,895.00
If you have chosen a Ridetech 4-link system to improve the ride quality, handling, and braking of your classic muscle car, the next purchase should be a Ridetech Ford 9 in. housing and axle package with integrated 4-link and sway bar brackets. These narrowed 4-link axle assemblies allow for the easiest installation of your 4-link system. The 9 in. Ford housings are great foundations for putting torque to the pavement. They feature a webbed center section, internal gussets, thick wall tubes, and billet steel flanges (new-style Big Bearing/Torino). The pinion is offset 1/2 in. and the axle flange is offset 2 1/2 in. The narrowed axle widths satisfy mini-tub applications. Ridetech narrowed housing and axle packages are offered in two axle lengths and available raw or with a black powdercoat finish. Select the proper length and preferred finish for your project. Features and benefits: * Webbed center section with internal gusseting for added strength * 3 in. diameter, 1/4 in. thick wall tubes * 31-spline heat-treated 1541H custom alloy axles * High-quality Timken tapered bearings on axle as standard * Drain plug and jack pad * High-quality Grade 8 installation hardware--housing studs, T-bolts, nuts, and washers * 3rd member studs are pre-installed and ready to accept a third member
( 1 )
$1,975.00
Factory driveshafts are made from a smaller tube (there are 2 different types) and will flex and bend during hard acceleration, causing the rubber drives to wear out prematurely. The Driveshaft Shop torque tube driveshafts are made from 3 x .125 wall 6061 T-6 aluminum and uses The Driveshaft's own custom machined ends. This ensures that the shaft will not distort or break like the factory units, and offer units rated up to 1000 hp. Choose the driveshaft designed for your vehicle.
( 4 )
$1,524.48
—
$2,112.66
If you have chosen a Ridetech 4-link system to improve the ride quality, handling, and braking of your classic muscle car, the next purchase should be a Ridetech Ford 9 in. housing and axle package with integrated 4-link and sway bar brackets. These stock 4-link axle assemblies allow for the easiest installation of your 4-link system. The 9 in. Ford housings are great foundations for putting torque to the pavement. They feature a webbed center section, internal gussets, thick wall tubes, and billet steel flanges (new-style Big Bearing/Torino). The pinion is offset 1/2 in. and the axle flange is offset 2 1/2 in. Ridetech stock housing and axle packages are offered in two axle lengths and available raw or with a black powdercoat finish. Select the proper length and preferred finish for your project. Features and benefits: * Webbed center section with internal gusseting for added strength * 3 in. diameter, 1/4 in. thick wall tubes * 31-spline heat-treated 1541H custom alloy axles * High-quality Timken tapered bearings on axle as standard * Drain plug and jack pad * High-quality Grade 8 installation hardware--housing studs, T-bolts, nuts, and washers * 3rd member studs are pre-installed and ready to accept a third member
Not Yet Reviewed
$1,975.00
ATS heavy-duty billet torque converters match your first generation Cummins-powered Dodge truck's torque curve with the power needed for street, towing, and performance applications. These converters feature the patented ATS square flank drive design, proprietary clutch material, CNC-cut steels, redesigned stators, Torrington bearings, and stall speeds perfectly mated to your Cummins engine. ATS heavy-duty, non-lockup billet converters completely eliminate the weaknesses of your factory converter and deliver more power to the ground, lower temperatures, and greater overall performance. Features include: * Improved vehicle response * Minimized slip * Improved towing and drivability * Increased reliability * Withstands higher torque loads * Custom stator with high-flow windows * Redesigned spring dampener * Plasma welded for unsurpassed strength * Hardened turbine splines * Unique bonding technology for 100 percent chemical bond (an ATS exclusive) * Note: Must be used if installing a billet flexplate
Not Yet Reviewed
$1,754.99
Summit Bucks
Failure of the intermediate stub shaft and direct drum are almost inevitable when transmissions are pushed to the limit. To maximize durability and improve clutch capacity in heavy-duty/performance vehicles, Sonnax offers Smart-Tech direct clutch drum and shaft kits, the first upgrade to eliminate every critical weakness. Most failures in these units occur where the direct drum and stub shaft connect. Even other aftermarket upgrades that rely on a heavy-duty shaft will sheer in this area under extreme conditions. Unlike two-piece assemblies, the all-in-one Smart-Tech easily handles the highest horsepower/torque levels. The unique one-piece clutch drum with integrated stub shaft is precision machined from high-strength steel to guarantee there are no splines to strip from the drum or weaken the shaft. The shaft itself is significantly thicker and 2 times stronger than the original. Due to its larger diameter, the integrated shaft must be used with the kit's custom, heavy-duty sun gear. Insufficient holding power is another area where many transmissions fall short, but installing thinner aftermarket steels and backing plates to increase clutch capacity isn't ideal. Those components increase clutch pack flex and heat build-up, making them the primary cause of repeat burn-up. To improve both performance and long-term reliability, the Smart-Tech's custom drum and piston hold an OE backing plate and seven OE frictions for 17 percent more clutch capacity than the six-friction stack-up. Sonnax Smart-Tech direct clutch drum and shaft kits feature: * One-piece design that eliminates weak point where drum splines strip and shafts break * Rugged shaft is 50 percent thicker and twice as strong as OE * Custom drum and piston deliver 17 percent more clutch capacity with optimum protection against burn-up * High-strength drum and shaft are precision-machined from hardened 8620 steel * Unique sun gear is precision-machined from 9310, heat-treated steel
( 1 )
$1,537.27
The ATI SuperCase TH350 transmission cases are SFI-approved for competition use. The case, bellhousing, and tailhousing are cast from 356T6 cast aluminum. Developed to eliminate all weak points found in the original GM design, this rugged assembly features a steel safety inner liner that weighs only 29 ounces and eliminates the need for any external shields. In addition, the SuperCase features a removable bellhousing that bolts directly to the transmission case instead of the pump bolt locations and has been engineered to accept all internal Turbo 350 components. Order the model that is best suited for your application. Features include: * Meets SFI 4.1 - no shield or blanket required * CNC-machined valve body passages for fast trans-brake release and quicker shift times * Increased thickness extension housing and bell flange area to ward off breakage * Stronger internal lugs and more material to allow room for more clutches * Custom valve body passages can be made to order for builders with specific requirements * Band adjuster version for non-GM internal components * Retains OEM governor cavity for auto shift applications * Also available with no governor (NG) or forward band machine work
( 1 )
$1,781.99
Winters early Ford V8 quick-change center kits provide you with what you need to build your own custom rear-end. These kits are for use with early Ford bell tubes, axles, and differentials. The assemblies use original early Ford steel tubes and bells, axles, and carrier assemblies. Each kit comes complete with one quick-change center section, a 4.11:1 ring and pinion, one axle housing gasket set, one carrier bearing, and one straight cut, 6-spline gear set of your choice. Hardware and instructions are included.
Not Yet Reviewed
$1,833.99
Advanced Clutch Technology (ACT) Mod-Twin 225 Maxx Extreme twin-disc race clutch kits are available in two styles—Sprung Race and Rigid Race—for a variety of applications, including many Subaru and Mitsubishi models. Here are descriptions of each: * MOD-TWIN 225 XX SPRUNG RACE CLUTCH KIT: Performs aggressive launches and smoother shifting in high-powered AWDs by combining twice the ceramic friction surfaces with an ultra-durable mono-drive sprung hub assembly in a completely modular design. Each diaphragm spring endures an exclusive 4-stage heat treating process, providing a consistent pedal feel requiring moderate effort. Puck-style friction plates with high-quality ceramic friction materials deliver high friction coefficient, superior heat capacity, and long clutch life. These plates uniformly transfer torque to a mono-drive sprung hub assembly which extends input shaft life and reduces driveline shock from torsional vibration. This kit includes a CNC-machined and dynamically balanced flywheel, pressure plate cover, diaphragm spring, face, puck-style ceramic friction plates, sprung mono-drive hub assembly, floater, patented Monoloc Collar, release bearing, alignment tool and pilot bearing (if needed). -- Features and details: Predictable aggressive engagement, increased pedal effort, smooth shifting, possible start-off judder with OE to mild transmission gear noise; forged aluminum cover, mono-drive hub, exclusive diaphragm, premium friction materials, and hardened wear points ensure this long-life twin performs and survives under the most demanding conditions; delivers maximum performance and high heat tolerance by combining robust design, strategic features, choice materials, and close tolerances; Drag, Road or Rally Racing; Applying tactical engineering to the Mod-Twin, ACT presents unique solutions to common tradeoffs found on twin disc clutches, resulting in an ultra-durable, customer serviceable, long-lasting clutch with very high torque capacity. All are 100 percent clamp load tested, balanced and SFI certified. * MOD-TWIN 225 XX RIGID RACE CLUTCH KIT: Tackles aggressive launches and rapid shifting of high powered AWDs by combining twice the ceramic friction surfaces with a no-nonsense solid mono-drive hub in a completely modular design. Each diaphragm spring endures an exclusive 4-stage heat treating process, providing a consistent pedal feel requiring moderate effort. Puck-style friction plates with high-quality ceramic friction materials deliver high friction coefficient, superior heat capacity, and long clutch life. These plates uniformly transfer torque to a mono-drive chromoly steel hub which is heat treated for strength and durability, extending input shaft life with one continuous spline. The lightweight, rigid design allows for quicker shifts and trouble-free service. This kit includes a CNC-machined and dynamically balanced flywheel, pressure plate cover, diaphragm spring, face, puck-style ceramic friction plates, rigid mono-drive hub, floater, patented Monoloc Collar. -- Features and details: Predictable aggressive engagement, increased pedal effort, quick shifting, possible start-off judder with mild to moderate transmission gear noise; forged aluminum cover, mono-drive hub, exclusive diaphragm, premium friction materials, and hardened wear points ensure this long-life twin performs and survives under the most demanding conditions; delivers maximum performance and high heat tolerance by combining robust design, strategic features, choice materials, and close tolerances; Drag, Road or Rally Racing; Applying tactical engineering to the Mod-Twin, ACT presents unique solutions to common tradeoffs found on twin disc clutches, resulting in an ultra-durable, customer serviceable, long-lasting clutch with very high torque capacity. All are 100 percent clamp load tested, balanced and SFI certified.
Not Yet Reviewed
$1,878.00
—
$2,108.00
On Sale
Hays Twister Full Race Torque Converters feature a custom-designed anti-balloon plate to stop any converter ballooning and swelling in racing situations. These torque converters are designed for use with a trans-brake and great for power adders such as nitrous, superchargers, and turbos. They're available with various RPM stall speed offerings to accommodate any mixture of modifications—including higher compression ratios, aftermarket camshafts, aftermarket cylinder heads, lower gear ratios, and vehicle weight loss. Additional product features: * All Full Race Series converters are built, tested, and proven to support up to 1,000 hp * Designed to handle the extreme shock and abuse of trans-brakes, nitrous oxide, superchargers, and turbochargers * State-of-the-art spray welding process is used in select areas. Spray welding provides clean, strong, and consistent fusion while also increasing strength through hardening from higher process temperature * Each converter is hand-built and inspected in every step of assembly to ensure top-of-the-line quality * All Hays torque converters are internally welded, compared to brazing. Testing has shown welding provides longer converter life while also enhancing consistency * Heavy-duty Torrington bearings are used for greater strength and durability * Stators are chosen with high-flow vents and channels to promote cooling in heat-producing higher horsepower applications * Increased horsepower and acceleration due to a weight-saving, one-application design. Almost all Hays converters are built for one application to reduce weight, compared to a multi-bolt pattern converter * Full Race Series torque converters are offered in several different stall speeds for popular automatic transmissions.
( 1 )
$1,699.95
—
$1,949.95
RAM Force 10.5 dual disc clutch kits have a strap-driven floater plate and are precision-balanced for quiet operation. The sprung hub top disc absorbs shock and reduces driveline noise. Force clutches are available with your choice of a 300 Series friction disc or a 900 Series disc. The 300 Series organic disc models are capable of handling 500 to 800 hp; while the 900 Series metallic models can handle between 600 and 1,200 hp. These kits use a marcel spring—a thin, wavy device that helps to eliminate the go-or-no-go tendency that similar dual disc clutches have. RAM Force 10.5 dual disc clutch kits include a billet aluminum, SFI-certified flywheel with a steel insert that has sufficient mass to draw heat away from the clutch without distortion. Some kits are available with a steel flywheel. Order the model recommended for your vehicle and engine application.
( 4 )
$1,685.00
TCI Circlematic automatic transmissions are great for oval track use. However, despite the sound of their name, they also can be used for performance marine applications. All transmissions feature high performance clutches, a steel clutch hub, and a modified planetary gear set that will work with the latest rear suspensions. Many specialty combinations are available.
Not Yet Reviewed
$2,250.95
McLeod Magnum Force clutch kits are the perfect choice for racers looking for lightweight, high-torque capacity units. They are specifically designed for oval track, road race, and dry lake applications. The McLeod Magnum Force clutch kits are offered in single, double, and triple-disc combinations. Available for most input shaft splines, the McLeod Magnum Force clutch kits feature optional pin or strap floaters to rattle and have bolt-on counterweights for balanced engines.
Not Yet Reviewed
$1,567.12
—
$1,895.00
RAM Pro Street dual disc clutch kits are precision-balanced for smooth operation—and come equipped with a billet cover for optimum release length, a comfortable pedal effort, and a high diaphragm finger position for excellent high-RPM shifting capability. The sprung hub top disc absorbs shock and reduces driveline noise. Pro Street kits are available with your choice of an organic friction disc or a metallic disc. Organic disc models are capable of handling 500 to 800 hp; the metallic disc models can handle between 600 and 1,200 hp. RAM Pro Street dual disc clutch kits include a billet aluminum, SFI-certified flywheel with a steel insert that has sufficient mass to draw heat away from the clutch without distortion. Some kits are available with a steel flywheel. Order the clutch recommended for your vehicle and engine application.
( 1 )
$1,899.00
Modal Header
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
