$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT

$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT

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Transmissions & Transmission Parts

Part Groups

Results 1 - 24 of 370

Advance Adapters 700R to TH350 Tailshaft Adapters

Advance Adapters offers 700R to TH350 tailshaft adapters designed for use when you're replacing a stock GM 700R transmission (which is 1.875 in. longer than the TH350). These aluminum adapter spacers, when used with a 6 in. tailhousing 2WD TH350 (15.5 in. O.A.L. output shaft length) should provide a direct replacement for the 700R4 transmission. The TH350 output shaft will require some trimming; however, this will allow you to install the TH350 without any driveshaft modifications.

4.58 out of 5 stars ( 12 )

$112.85

TCI PRO-X TH350 Aluminum Tailhousings

TCI Automotive now offers a new 6 in. tailhousing to replace hard-to-find OEM parts for the PRO-X TH350 transmissions. These cast aluminum tailhousings feature a low-profile, lightweight design with improved strength for drag racing applications.

4.5 out of 5 stars ( 2 )

$109.95

ATI TH350 Transmissions

ATI TH350 transmissions are durable and effective high performance 3-speed transmissions. Modifications and options include: * Fully blueprinted and equipped with high-flow lube circuits, increased torque capacity, and hard chrome oil rings * Sprags replaced with heavy-duty units * Clutch packs are assembled for individual applications * Compu-Flow valve body standard * Special low-gear sets for increased launch capability * Lightweight options available to upgrade the transmission

Not Yet Reviewed

$2,159.99

$3,069.99

ATI SuperCase TH350 Transmission Cases

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

4.0 out of 5 stars ( 1 )

$1,775.99

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.

3.47 out of 5 stars ( 57 )

$2,024.99

$2,049.99

Summit Racing™ Torque Converters

Designed for stock and mildly hopped-up street vehicles, our Summit Racing™ torque converters give you the extra stall speed that you need for quicker launches. They're available for a variety of transmission makes and models. Summit Racing™ converters are computer-balanced and feature: * Submerged arc welds * New turbine hub * Custom stator * New pilot * New impeller hub

3.97 out of 5 stars ( 357 )

$294.99

$346.99

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.

3.46 out of 5 stars ( 151 )

$1,772.95

$3,489.95

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 ( 189 )

$329.95

$549.95

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.

3.4 out of 5 stars ( 30 )

$2,122.95

$2,490.95

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 )

$1,853.95

$3,830.95

Summit Racing™ Transmission Pans

You can get Summit Racing™ transmission pans in plain or finned styles. We offer stock depth or deep pan styles and come with a drain plug.

4.28 out of 5 stars ( 310 )

$31.99

$161.99

On Sale

Summit Racing™ Flexplate Dust Covers

Summit Racing™ flexplate dust covers are manufactured from high-quality steel and are available in your choice of finishes. They allow for easy access to the torque converter area and prevent debris from entering your transmission's bellhousing.

3.6 out of 5 stars ( 342 )

$50.99


$41.99

$158.99

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.

3.78 out of 5 stars ( 55 )

$2,250.95

$4,147.95

On Sale

B&M Automatic Transmission Deep Pans

B&M automatic transmission deep pans provide additional fluid capacity and cooling ability. No modifications to the dipstick are needed. They include a drain plug for clean and easy fluid changes, and are available in chrome or cast aluminum. Filter extensions are included for those applications that require the filter to be moved closer to the bottom of the pan.

4.58 out of 5 stars ( 369 )

$133.95

$299.95

ATI SFI Standard Bellhousings

ATI offers two different versions of their bolt-on style SFI bellhousings, including ATI SFI Standard bellhousings. The Standard versions bolt onto the face of the pump and the case finish is not as critical. The direct-fit versions indicate on the outside diameter of the pump and require precise machining. When you want the standard-style, choose the ATI SFI Standard bellhousing best suited for your application.

4.85 out of 5 stars ( 20 )

$319.00

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 )

$3,078.95

$3,175.95

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 )

$1,964.99

$3,816.99

Mr. Gasket Automatic Transmission Oil Pans

These automatic transmission oil pans from Mr. Gasket are stock-depth chrome plated pans. They come complete with a washer and gasket and most have drain plugs.

4.18 out of 5 stars ( 88 )

$68.05

$133.95

Summit Racing™ Speedometer Gear Kits

Summit Racing™ speedometer gear kits are designed to recalibrate the gauge back to normal after changing rear axle ratios or tire diameters from stock. We give you a new "bullet" and a nice assortment of drive and driven gears to accommodate most street gear ratios and tire sizes. All you need to know are the tire diameter and rear gear ratio--and you can dial in the speedometer (and try to avoid those unwanted speed violations). Select the kit that's compatible with your transmission application.

4.57 out of 5 stars ( 21 )

$62.99

Trans-Dapt Performance Aluminum Transmission Pans

Trans-Dapt Performance polished aluminum finned transmission pans dissipate heat better than standard steel pans, resulting in cooler oil temperatures. The drain plug, gasket, and chrome bolts are included. Order the model recommended to fit your transmission application.

4.34 out of 5 stars ( 35 )

$117.99

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

$817.57

TCI Transmission Pans

Investing in TCI transmission pans ensures the longevity of your transmission. They offer a selection of designs, depths, materials, and finishes to keep your transmission cooler and your undercarriage looking good. Skip the pans of lesser quality doomed to warp and leak; choose the policy of lasting performance from TCI transmission pans. TCI cast aluminum pans feature: * Exterior cooling fins wick away and dissipate heat * Provides additional strength and rigidity to transmission case * Ensures long transmission service-life * Include all required accessories and hardware necessary for installation TCI Max-Cool aluminum pans feature: * Black powdercoated finish * Large fluid capacity reduces internal transmission temperature * Exterior cooling fins wick away and dissipate heat * Aircraft-quality aluminum construction for strength and durability * Magnetic drain plug TCI polished die-cast aluminum pans feature: * Thicker than stock pans * Finned and polished to a high luster * Stock depth to avoid ground clearance issues * Includes drain plug for simpler fluid and filter changes * Includes necessary gaskets, filters, and installation hardware TCI chrome-plated steel pans feature: * Stock depth is easy to install * Includes drain plugs * Thicker than stock for added durability * Chrome prevents rust and adds show quality looks

4.21 out of 5 stars ( 183 )

$164.95

$221.95

Summit Racing™ Braided Stainless Transmission Dipsticks

If space is tight between the firewall and motor, you'll be surprised how easy it is to install Summit Racing™ braided stainless transmission dipsticks without any problems. The inner cables are clearly marked and easy to read.

4.83 out of 5 stars ( 88 )

$63.99

$126.99

Derale Transmission Pans

Derale Performance transmission pans can double your transmission's life by dropping its temperature 20 to 50 degrees. These pans hold additional fluid and have heat-conducting metal tubes on the bottom. A replacement gasket is included.

4.33 out of 5 stars ( 201 )

$220.49

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