Summit Racing SpeedCard - learn how to get 10% back up to $100

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1974 Transmission & Drivetrain

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Results 1 - 24 of 83

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.

3.44 out of 5 stars ( 59 )

$2,024.99

$5,299.99

On Sale

TCI Super StreetFighter Transmissions

TCI Super StreetFighter transmissions bridge the gap between the StreetFighters and full Competition series transmissions. Like the StreetFighter units, these are equipped with 100 percent tested, manual/automatic valve bodies. That means that most units allow you to manually shift the vehicle into each gear change or, by placing it in the drive position, remain fully automatic. In either mode, you get a racetrack shift that bangs through the gears and shaves time off your ETs. When you use the manual gear selection feature, the Super StreetFighters upshift and downshift right when you move the lever, with no lag or governor override. When you select the normal drive position, the transmissions retain positive automatic shifts, for the ease of driving you look for in an automatic transmission.

3.82 out of 5 stars ( 57 )

$3,478.95


$1,950.95

$2,978.95

On Sale

TCI StreetFighter Transmissions

TCI StreetFighter transmissions are durable enough to withstand the rigors of even the toughest street machines. Equipped with a manual/automatic valve body, most units allow you to manually shift the vehicle into each gear change or, by placing it in the drive position, remain fully automatic. In either mode, you get a race track shift that bangs through the gears and shaves time off of your ETs. When you use the manual gear selection feature, the StreetFighters upshift and downshift right when you move the lever, with no lag or governor override. When you select the normal drive position, they retain positive automatic shifts for the ease of driving you look for in an automatic transmission.

3.56 out of 5 stars ( 144 )

$3,375.95


$1,724.95

$3,489.95

On Sale

TCI Maximizer 4x4 Transmissions

Bring out the performance of your 4x4 with these Maximizer transmissions from the folks at TCI. Four-wheel drive vehicles are tough on automatics, especially with the addition of a lift kit and larger tires. Maximizer transmissions are built with that in mind. Each one is assembled with the strongest components available and designed to provide crisp shifts, time and time again. They give you all of that, and they'll deliver long and dependable service, too.

3.32 out of 5 stars ( 31 )

$2,210.95


$1,683.95

$2,490.95

On Sale

TCI Competition Transmissions

TCI Competition transmissions are designed to take the abuse of drag-racing competition. They're available with full-manual and trans-brake setups and retain no automatic shift features. They feature special heat-treated races and sprags, high-performance clutches and bands, and improved lubrication. TCI blueprints and modifies these transmissions for maximum performance, then dyno tests and pressure tests them. So you can concentrate on winning the race!

3.55 out of 5 stars ( 31 )

$3,830.95


$1,853.95

$3,330.95

TCI StreetFighter Automatic Transmission Packages

TCI StreetFighter automatic transmission packages are durable enough to withstand the rigors of even the toughest street machines. Using the highest quality TCI manufactured components, each StreetFighter package is equipped with an automatic valve body, most units allow you to manually shift the vehicle into each gear change or, by placing it in the drive position, remain fully automatic. This gives you racetrack shifts and shaves time off your ETs. Each transmission goes through a variety of tests to verify that internal fluid pressures and shift characteristic match TCI's strict quality control standards. For the system to operate properly, all throttle linkage, vacuum lines and kick-down components must be connected. Each transmission package consists of a triple-tested TCI transmission and precision-tuned torque converter, a universal transmission cooler and premium TCI RTF transmission fluid. These packages are available with a variety of transmission models and other performance options. Choose the package for your application needs.

3.56 out of 5 stars ( 16 )

$2,802.95

$4,322.95

On Sale

TCI Heavy-Duty RV Transmissions

For hauling heavy loads or for taking a trip across the country, TCI heavy-duty RV transmissions were designed with you in mind. They're built for strength, and they'll provide long, dependable service, as well as delivering maximum fuel economy. They have special valve-body modifications that increase fluid flow and improve shift characteristics, without the harsh feel of racing transmissions; and they include a low-gear package for pulling heavy loads.

3.67 out of 5 stars ( 3 )

$2,349.95

$2,885.95

TCI 4x4 Full Manual Competition Transmissions

Whether you drive a sand dragger, hill climber, or tractor puller, TCI has the transmission for you. The competition line of full manual 4x4 transmissions is built following the same specifications TCI uses in building thousands of drag race units. Applications are also available with trans-brake valve bodies.

1.0 out of 5 stars ( 1 )

$1,704.99

$2,297.95

Yukon Gear & Axle Ring and Pinion Gear and Differential Combos

Yukon Gear & Axle ring and pinion and differential combos save time and money by including everything you need in one simple part number. Pro Kits feature a premium Yukon ring and pinion gear set, Yukon Master install kit with high-quality Timken bearings, and required small parts to get vehicles back on the road quickly. The gear and install kits include axle bearings and seals. Many of these combo kits include Dura Grip differentials, depending on application. Order the Yukon Gear & Axle ring and pinion gear and differential combo designed to fit your application.

4.5 out of 5 stars ( 4 )

$1,495.99

$1,551.99

Hughes Performance Street and Strip Transmissions

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.

3.87 out of 5 stars ( 30 )

$2,399.99

$4,542.99

TCI Super StreetFighter Transmission Packages

TCI Super StreetFighter transmission packages are the perfect solution for street cruisers who want excellent street performance and long-lasting durability. Intended for normally aspirated vehicles powered by engines producing between 725 and 1,025+ hp, depending on the application, the TCI Super StreetFighter packages feature the many of the same benefits as StreetFighter transmission packages with certain internal upgrades, including higher performance friction clutches and bands, as well as heavy-duty hard parts. The Super StreetFighter transmission offers both manual and automatic shift options to give you the power and shifts you want for the strip, or easy driving for the street. The packages include the torque converter with furnace-brazed fins, needle bearings, hardened pre-ground pump hubs, Max Shift street performance fluid, a dipstick, and transmission cooler. With a TCI Super StreetFighter transmission package installed, you'll be ready to take on the streets—and beyond!

5.0 out of 5 stars ( 2 )

$3,086.95

$4,286.95

McLeod Street Twin Clutch Kits

McLeod Street Twin clutch kits are designed to be high performance replacements for your OEM clutch. They include everything you need--a new disc, pressure plate, and your choice of a billet steel or billet aluminum flywheel. McLeod Street Twin clutch kits are pre-balanced to fit specific applications and include the correct alignment tool for installation.

4.25 out of 5 stars ( 4 )

$1,066.74

$1,599.00

Silver Sport EasyFit Tremec TKX Transmission Kits

Silver Sport EasyFit transmission kits are designed to be the perfect start to your TREMEC TKX installation. The kits are tailored with a vehicle-specific shifter position and components to make your installation easy and less costly. Features and specs: * STX Shifter--short throw shifter (depending on kit) * Transmission mount, reverse light harness, pilot bushing, and required hardware * 5-speed pattern shifter ball or 5-speed shift pattern console plate (depending on kit) * EDP coated, steel crossmember (depending on kit) * Gear ratios--2.87, 1.89, 1.28, 1.00, 0.68, 2.56R * 600 lb.-ft. torque rating * 26-spline count input shaft * Quality-tested with a 12-month factory warranty

3.0 out of 5 stars ( 3 )

$4,195.00

$4,495.00

Auburn Gear Select-A-Loc Differentials

Auburn Gear Select-A-Loc differentials maximize your vehicle's traction with on-the-go system engage. These electronically controlled traction-enhancing differentials are selectable lockers offering the traction control of a limited-slip differential and a full-locking differential--all in one! When locker switch is off, the clutch pack activates the limited-slip mode. As torque increases, the separating forces within the differential gears increase, causing the clutch pack to be compressed, in turn providing bias torque to the highest traction wheel. When the locker switch is turned on, electronic current is sent to the electromagnetic coil which locks the axles together. Auburn Gear Select-A-Loc lockers feature a unique cone-clutch design with gearing made from aircraft-quality 9310 heat-treated billet steel for tough-as-nails strength. The lockers operate quietly without any shift fork or pins to line up to change the locker mode. With a limited-slip mode for on/off-road excitement and a true locker mode for the quarter-mile or nasty off-road terrain, Auburn Gear Select-A-Loc differentials deliver superior traction capabilities on the street, at the track, or off-road.

3.1 out of 5 stars ( 10 )

$1,415.99

$1,419.99

On Sale

Lakewood Safety Bellhousings

Lakewood safety bellhousings are designed for maximum performance and durability. They are cut on CNC 5 axis laser cutters rather than plasma cutters to improve finish quality, reduce heat damage and warpage from the plasma cutter, improve speed of manufacture, and make them all exactly the same. All bellhousings feature a scalloped plate on the bottom of the transmission surface made from G70 grade steel (70,000) psi which will help eliminate stripping the transmission bolts. The engine plates are made of H60 grade material and the bells are roto-brated after welding to relive any stresses created from the hydro forming, annealing, or welding process prior to machining and painting. The roto-brating process also closes the metal on the outer surface making them stronger. Ever wonder how the SFI tests bellhousings like these Lakewood safety bellhousings? First, they bolt the bellhousing to a machine with a cast iron flywheel and saw inside it. Then they spin the flywheel, causing the saw to cut through it until it explodes. If the bellhousing can contain the explosion, the bellhousing is approved. These safety bellhousings are a safeguard to minimize the destructive effects of such an explosion. Don't take unnecessary chances with your safety and the safety of innocent bystanders--Lakewood not only provides top-notch products, they also provide peace of mind.

4.54 out of 5 stars ( 46 )

$1,299.95


$844.95

Advance Adapters AX15 Transmission and Bronco Dana 20 Adapter Kits

Advance Adapters offers an AX15 5-speed transmission retrofit adapter kit for 1966-77 Bronco Dana 20 applications. The adapter kit comes complete with the conversion components required to retrofit your early Ford Bronco with the Aisin AX15. Kit includes: * New AX15 transmission * Transfer case adapter and transfer case shifter linkage bracket (T-style shifter only) * Transmission to engine adapter * Clutch disc * Crossmember mount kit * Shifter handle * The Transmission: This transmission is manufactured by Aisin Warner. The overall transmission case length is 24.000 in. The output shaft on this transmission is 23-spline and protrudes approximately .400 in. This transmission is normally found coupled to the AMC 4.0L 6-cylinder engine and seems to be one of the better transmissions Jeep used—very capable of handling the horsepower and torque of a V8 engine. * The Vehicle background and specs: The early Ford Broncos have always been a popular vehicle for conversions. These vehicles were normally equipped with a 6-cylinder or V8 engine up to a 3-speed transmission. On this transmission, Ford used two different lengths of adapter housings when coupling this 3-speed to the stock transfer case. The adapter housing is either 6 1/2 in. or 9 3/8 in. Vehicles equipped with a V8 had a 9 3/8 in. tailhousing which set the bellhousing further into the engine compartment. Vehicles with the 6-cylinder had a 6 1/2 in. tailhousing. This shorter adapter compensated for the longer engine. In 1973, Ford began offering the C4 automatic. A special tailhousing and output shaft was manufactured to couple this transmission to the stock transfer case. Ford no longer makes the C4 adapter. The 1966-77 vehicles were equipped to a Bronco Dana 20 transfer case. This transfer case, unlike the Jeep Dana 20, has the front driveshaft on the driver's side of the vehicle. The input gear of this transfer case is 6-spline. Ford always used a spud shaft that coupled this 6-spline transfer case to the transmission 28-spline. The transmission-to-transfer case adapters used both a dowel pin and alignment retainer. The spud shaft is supported in this retainer with a bearing. Advance Adapter adapter kits utilize this type of design. In some applications, the stock spud shaft is also retained. This transfer case has a 2.46:1 low gear ratio. In early 1973, Ford switched to a 2.34:1 low gear ratio. These transfer cases used two different shifter designs known as either the "J" pattern or "T" handle. The "T" handle was used from 1966 to 1972, and the "J" pattern from 1973 to 1977. The "T" handle shifter is a fairly simple shifting mechanism; and to retain it with an adapter only requires a pivot point for mounting. The "J" shifter requires the shift handle to be mounted in a location relatively close to its stock position. Retaining this shifter is hard to accomplish when adapting the various transmissions to the Dana 20. Vehicle owners with a "J" shifter are advised to either change the transfer case shifter rods and go to a "T" style shifter, or to contact one of the Bronco specialty shops that offer a twin stick replacement for the "J" shifter. A twin stick shifter replacing the "J" style should work with most of Advance adapters. Advance Adapter housings normally utilize the stock Bronco crossmember with the stock rubber supports. On new transmission assemblies longer than stock, this crossmember may need to be relocated. There are a few adapters that require this crossmember to be modified. These modifications are noted in detail on the specific adapter instruction sheet.

Not Yet Reviewed

$3,141.50

RAM Force 10.5 Dual Disc Clutch Kits

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.

4.0 out of 5 stars ( 4 )

$1,425.00

$1,685.00

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.

4.49 out of 5 stars ( 318 )

$453.99

$1,341.99

On Sale

Hurst Axle Conversion Kits

Early GM trucks all came with 6-lug axles. Not only does this limit your wheel choices, but it restricts your options on brakes as well. Hurst axle conversion kits offer a solution. The axles in these 5-lug conversions are made from 1541H alloy for supreme strength and durability. The kits are designed for the 8.875 12-bolt rear-end with the axles featuring 30 spline ends, a 5 x 5 in. lug pattern, and have a 30 3/4 in. length. Choose the kit for your year truck and always look to Hurst Engineering for your truck axle needs. Features: * Complete kit makes installation a breeze * Heat-treated, high-quality 1541H alloy for strength and durability * 30 Spline and 30 3/4 in. long for a direct replacement * 5 x 5 in. lug pattern * Fits 8.875 in. GM truck 12-bolt

5.0 out of 5 stars ( 1 )

$481.95

Yukon Gear & Axle Cut-to-Fit Axle Shafts

When you need strength for your custom axle job, Yukon Gear & Axle cut-to-fit axle shafts should be your choice. Built to last, these Yukon axles are offered in hardcore 4340 chromoly and 1541H alloy steel. Built to perform, they offer more strength than stock styles and come in your choice of cut-to-fit/cut-to-length designs. Choose quality-built strength for your application with Yukon Gear & Axle cut-to-fit axle shafts.

4.73 out of 5 stars ( 33 )

$404.99

GearStar Ford 4R70W Level 3 Transmissions

GearStar offers level 2, 3, and 4 Ford performance transmissions, custom built by one of their master technicians from start to finish, then dyno tested with converter to the equivalent of 100 miles, ensuring the transmission and converter package is in perfect operating condition before leaving their facility. GearStar Ford 4R70W Level 3 transmissions come fully equipped with a 20,000 GVW cooler, and a variety of customizations geared towards high performance driving. "Heart-pounding performance with industry leading experience"; select the proper transmission for your build and "strap yourself in to experience uncompromising performance" with the "legendary road-proven craftsmanship" of GearStar Performance transmissions. Features and specs: * 500 hp * Up to 450 lb.-ft. of torque * 10 in. custom built billet converter with lock-up * Stall: 2,600 to 3,200 * Master overhaul kit with Alto hardened steels * Raybestos Stage I frictions * TransGo reprogramming shift kit with shift command * New electronics: -- Updated EPC -- Shift solenoids -- Lock-up solenoid -- Internal wiring harness -- Output sensors * Complete Torrington bearing kit * New bushing kit * New reverse band * Alto Red Eagle wide O.D. band * High-capacity 4-plate intermediate clutch * Direct clutch pack (eight frictions) * Rev. drum with heavy-duty mechanical diode * Updated sun shell and gear * New low spring and roller * High-capacity pump assembly * Expanded capacity overdrive servo * Updated O.D. servo pin * Updated 3rd accumulator piston * Transmission mount * Custom 360-degree adjustable shift linkage arm

Not Yet Reviewed

$7,095.00

Instant Rebate

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.

4.78 out of 5 stars ( 496 )

$939.99

FTI Performance TH400 Level 4.5 Transmissions

FTI Performance TH400 Level 4.5 transmissions begin with a race-prepped factory Chevy case—and end up rated up to 1,100 hp. Each professionally hand-built case includes a short shaft, a billet aluminum drum and forward clutch hub, a 34-element sprague, and race material clutches. An FTI billet aluminum trans-brake with a full manual reverse valve body is stout enough to handle major power and keeps reverse and first gears closely knit. The included deep aluminum pan allows more fluid capacity for increased cooling, while the 300M input shaft provides amazing strength. Whether you're racing off-road, on the street, or at the track, FTI Performance TH400 Level 4.5 transmissions fit the bill. Order the model best suited for your application.

Not Yet Reviewed

$3,649.00

Yukon Gear & Axle Muscle Car Limited Slip and Re-Gear Kits

Yukon Gear & Axle muscle car limited slip and re-gear kits dramatically improve traction and durability by adding a Yukon LSD and an upgraded ring and pinion set to your differential. They also provide an opportunity to generate next-level acceleration by moving to a more aggressive gear ratio. Each kit will include posi-traction unit, ring and pinion gear set, and all required bearings and installation hardware. Select the kit designed for your muscle car.

Not Yet Reviewed

$1,489.99

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