Performance Transmission & Drivetrain at Summit Racing

Trail-Gear Rock Assault Fully Built Axle Assemblies

Trail-Gear offers fully built Rock Assault front and rear axles made of entirely new parts and customized to your choices. They include everything needed from hub-to-hub, and are expertly assembled by TG's master mechanics. Save yourself time, money, and the hassle of ordering each component separately and then building it yourself. You make the choices and let Trail-Gear do the assembly! Select your kit. Front and Rear Rock Assault fully built axles feature: * 5/16 in. thick, high-strength DOM axle tubes that engage 5/8 in. further into the center section and the 360-degree gusset welded around the tubes on the inside of the housing * Axle tubes have been offset above the housing centerline to allow the inner axles to ride near the bottom of the axle tubes rather than in the center * Increase of 3/8 in. ground clearance under the axle tubing * Heavy-duty, press-formed, 1/4 in. plate steel center section shell is specially shaped to ensure a minimum of 3/4 in. additional clearance under the differential * Differential mounting surface is made from 1/2 in. plate steel Rear axle kit contents and features: * Rock Assault axle housing * Complete rear disc brake kit * Chromoly axle shafts * Bearing pockets * Rear axle bearing service kit * All necessary nuts and studs * Outer offset flanges are made from 4130 chromoly to prevent distortion or bending * Housings are precision aligned using start-of-the-art, 3D digital imaging equipment * Customize each axle to exactly what you need with your choice of: -- Axle width -- Differential Front axle kit contents and features: * Toyota Rock Assault axle housing * Upgraded Longfield 30-spline Birfields * 30-spline chromoly axle shafts * Fully Loaded Six-Shooter knuckle kit * Chromoly spindles * Upgraded brake rotors and calipers * Heavy-duty tie rod and drag link * Trail-Gear's upgraded Trail Safe seals * Super Metal knuckle studs * All necessary nuts, bolts and seals * 59 in. from WMS to WMS * Knuckle balls are forged from 1035 steel * Customize each axle to exactly what you need with your choice of: -- Axle width -- Axle offset -- Differential -- Hubs or flanges

Not Yet Reviewed

$4,599.99

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$7,599.99

Low Range Off-Road Wheel Bearings

All Low Range Off-Road wheel bearings are some of the highest quality bearings on the market. Many are Timken and Koyo Japanese brand bearings (varies by make and model), so you can rest assured that you are getting the best. Available for both front and rear wheel positions, they are offered individually or in kits that typically include, depending on the particular application, inner and outer bearings, bearing races, hub gaskets, and wheel bearing seals … everything you need to complete the job. From the dealership, the equivalent parts can cost over $350.00. Pay less with Low Range Off-Road wheel bearings and get all the parts at one low price. Note: Most LROR kits service only one side, front or rear. So, for complete front or rear axle sets, you will usually need to order a quantity of two kits.

4.33 out of 5 stars ( 6 )

$56.51

GSP New CV Axle Assemblies

GSP new CV axle assemblies are engineered to provide OE fit, form, and function. Premium materials, coupled with precise machining and balancing, ensure smooth, vibration-free performance in all driving conditions. All axles are thoroughly inspected for quality and workmanship. Additional attributes of GSP new CV axle assemblies include: * Since boot failure is the main cause of CV axle failure, GSP axles use only premium-grade neoprene boots that ensure robust abrasion and extreme temperature resistance, preserving boot integrity * Assembled with a specially formulated, high-temperature moly grease that resists friction and wear, contributing to a lifetime of smooth, dependable performance

3.89 out of 5 stars ( 93 )

$109.99

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$151.99

Pioneer Clutch Forks

Pioneer offers the selection of replacement clutch forks needed to keep your vehicle shifting properly. They have many strong forks to fit a wide variety of applications and all are manufactured to OE standards, so you know that the fit and function will be just what you expect them to be. Keep the connection between your pedal and throwout bearing moving smoothly with Pioneer clutch forks.

3.88 out of 5 stars ( 26 )

$70.99

Summit Racing™ SFI-Approved Flexplates

Our Summit Racing™ SFI-approved flexplates are built for racing. They're thicker than stock, double-welded with a forged one-piece ring gear. Available in several internally and externally balanced applications. NOT FOR MARINE APPLICATIONS.

4.27 out of 5 stars ( 519 )

$51.99

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$196.99

Strange Heavy Duty U-Joint Girdles

Strange heavy-duty U-joint girdles are the ultimate in U-joint retention. Designed to withstand the high stresses of racing and off-road abuse, these fasteners are built using a stud-and-nut method versus the traditional U-bolt. Providing a 360 degree clamping area prevents needle bearing damage and journal brinelling—which translates to less heat and longer life. Features include: * Heat-treated, chromoly steel straps * ETD 150 steel studs * ARP distorted thread, 12-point nuts * Designed for use with Strange pinion yokes

4.63 out of 5 stars ( 30 )

$99.99

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$136.99

Summit Racing™ Transmission Yokes

Summit is proud to offer our Summit Racing™ Transmission Yokes. Built from quality materials these are offered in various Lengths and common U-joint sizes to allow you to replace your bent, rusted, or worn factory yoke or finish up a swap where the driveshaft is just a touch too short. Eliminate that last weak spot in your driveline with Summit Racing™ transmission yokes.

4.33 out of 5 stars ( 64 )

$74.99

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$85.99

Tremec TKX Manual Transmissions

Specially designed for the aftermarket with universal packaging, the TKX 5-speed RWD manual transmission is a power horse for your Ford or GM restomod project. With superior shifts even at high RPMs, the TKX provides extreme durability, excellent shifting performance and a sleek casing for a customizable fit. Like all TREMEC aftermarket transmissions, the TKX is made from 100% brand-new OEM-quality components. General product details: * Bolts up to a standard GM Muncie bellhousing or use a Quicktime bellhousing * The TKX has 600 lbs.-ft. of torque capacity and is capable of engines speeds of 8,000 rpm with shifts at 7,500 rpm. * It is available in multiple gear ratio configurations. * Designed for multiple applications with three shifter locations. Compact, end-loaded design provides clearance in most transmission tunnels without floor * Increased case strength with 3-piece aluminum housing provides outstanding structural stiffness (includes main case, intermediate plate and rear extension). Gaskets at all flanges simplifies installation and eliminates fluid * Superior shift-ability through use of multi-cone synchronizers and hybrid synchronizer rings made of sintered bronze and carbon * Noise, vibration and harshness (NVH) minimized with gear layout to best control stress All gears supported by caged needle bearings to reduce end play on the gears. * All gears and shafts made from special grade steel (ASTM 4615), providing increased torque carrying * Equipped with a high performance short-throw billet aluminum shifter that isolates road noise, while providing clean, crisp * Robust design with internal 3-rail shift system and steel shift * Wide gear width increases gear life and torque * Built-in reverse light switch and cruise control safety * Slimmest 5-speed on the market for improved tunnel clearance

4.96 out of 5 stars ( 47 )

$2,895.00

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 )

$1,596.95

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$4,976.95

On Sale

QuickTime Bellhousings

QuickTime bellhousings for Circle Track, strip, and street applications are built from high-grade steel. The cone is spun, not rolled or stamped, allowing these bellhousings to be the most dimensionally stable and accurate for today's high performance vehicles offering proven performance. Choose the size and specs needed for fitment on your particular vehicle, then bridge your transmission and engine with a QuickTime bellhousing.

4.51 out of 5 stars ( 108 )

$2,249.95

$648.36

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$1,999.95

FTI Performance ESR Series Torque Converters

FTI Performance ESR Series torque converters are designed for mildly modified vehicles. They're built using Torrington bearings, race-prepped sprague hardened impeller hub, hardened turbine hub and splines, a new steel pilot, and laser-cut mounting ring. These units are available in a variety of sizes, advertised flash stall ratings, and numerous other options. Order the torque converter recommended for your transmission application.

4.63 out of 5 stars ( 65 )

$479.00

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$1,059.00

FTI Performance Pro Powerglide Level 3 Transmissions

Racing is for pros--FTI Pro Series Powerglides! Their Level 3 units, like all the Pro Series transmissions, house the greatest advances in racing technology. They are fitted with FTI engineered valve bodies and spiral springs--they will not creep when the brake is set. And they are in-house CNC-machined and hand assembled to ensure every clearance is set to exacting tolerances. Level 3 Powerglides are designed and built for racers on a budget that need an unbreakable unit that can handle the rigors of their high performance engine in any extreme environment. Every transmission is dyno-tested to confirm they are race-ready and bulletproof. No wonder they are the choice of champions, shouldn't they be yours, as well? FTI Performance Pro Powerglide Level 3 transmissions feature: * 1.80 straight-cut gear planetary * 300m input shaft * Lightened steel clutch hub * 6-clutch drum * Race-prepped stock case * High-flow pump * Deep aluminum pan * Pro Tree transbrake * Billet dual ring servo * 4340 output shaft * 2-piece shift lever

4.5 out of 5 stars ( 4 )

$2,899.00

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$3,499.00

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.

4.64 out of 5 stars ( 80 )

$469.88

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$727.54

Summit Racing™ Ford 9 in. Trac-Loc Differentials

Summit Racing™ Ford 9 in. Trac-Loc differentials replace your OE units with strength and value. Our 4-pin limited slip units are new, not remanufactured, with more strength than your stock piece. Summit Racing™ Trac-Loc's are ready for your heavy-duty application at a lighter price making them a popular racing must have. These differentials are built with a steel case and extra support material in crucial areas, so you can do burnouts at the track on the weekend and drive it to the grocery store on Monday without worries. Aim your engine power at your wheels with Summit Racing™ Ford 9 in. Trac-Loc differentials.

4.5 out of 5 stars ( 34 )

$379.99

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

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$8,000.95

B&M Hammer Shifters

Designed to provide the most comfortable hand position and efficient shifting pattern, these B&M Hammer automatic shifters are the most advanced shifters ever. Their unique multi-position trigger is built for user comfort in any shifter position. The Hammer shifters work with forward and reverse pattern valve bodies, and fit most 3 and 4-speed automatic transmissions. These shifters also feature: * Universal floor mount console * Leather shift boot * Cable operation for quick installation and accurate shifts * Neutral safety switch * NHRA/IHRA-approved reverse lockout * Backup light switch * Lighted gear indicator

4.28 out of 5 stars ( 81 )

$357.95

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$487.95

Trail-Gear Rock Assault 9 Axle Housings

Rock your rig with Trail-Gear Rock Assault 9 axle housings. Tested on some of the most extreme off-road race courses, these axle housings are built to tackle the toughest terrain you can find! They start with 1/4 in. formed shell for the center section, and then attach 1/2 in. face plates. The housings finally connect the DOM axle tubes to the center section with their 3-point attachment system, giving the tubes superior support and engagement into the center section. Inner axle seal and seal housings are also included. Rock Assault 9 rear axle housings are designed for wheel mount surfaces—and are complete with flanges and unit bearing pockets, as well as inner housing seals. The strength you need to climb over anything starts with Trail-Gear!

4.33 out of 5 stars ( 3 )

$999.99

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$1,599.99

Bowler Performance All-in-One Transmission Wiring Harnesses

Bowler Performance All-in-One transmission wiring harnesses for the Tremec T-56 Magnum transmission comes equipped with all the connections pre-wired into one harness for a simple installation and ease of use. The small epoxy sealed controller is mounted to the VSS output using the existing bolt, and once the unit is powered up, you will be able to connect via Bluetooth to your Apple or Android smartphone using Bowler's free app. The app will give you the ability to customize the input and output settings for each feature to ensure proper operation in your vehicle. The perfect finishing touch for any Tremec T-56 Magnum conversion, Bowler's All-in-One harnesses eliminate the need for any additional equipment to operate the reverse lock out or generate the correct speedometer signals coming from your Tremec T-56 Magnum. Previously, you would have needed up to five separate parts to perform all the same functions wrapped one of these harnesses. The more technology we incorporate into our hot rods sometimes requires specific input signals to allow everything to function correctly. With the two speed outputs available in these harnesses, you can independently control the output of each one further eliminating any need for additional equipment and connections. Regarding the reverse lockout, Bowler has incorporated the same speed setting feature as the OEs into the All-in-One harnesses, giving you better control over when the lock out is triggered. Bowler's All-in-One harnesses give you much greater flexibility in the components you are able to use and require less time wiring everything up, providing an easier solution for setting up your Tremec T-56 Magnum transmission. Choose the harness version designed for your specific transmission make. Additional notes: * Harnesses utilize a small, built in, epoxy sealed box that will control each of the three functions with power and grounding for each function through a switched +12 V circuit and a wire connected to the negative battery post or engine block. * Control of the reverse lockout solenoid is based on a user defined speed setting (default is set at locked above 4 mph and unlocked at 0 to 3 mph), eliminating the need for a separate lock-out control box. * For your electronic speedometer, the harness is equipped with two speed sensor outputs; the speed sensor outputs generate a square wave signal that goes from about -5 to roughly +5 V, varying in frequency as the speed changes. * Output will automatically shift and give you 0 to +10 volts for EMC input needing positive only signal. * The two speed sensor outputs are completely independent and can be calibrated separately with any pulse count and ratio you want, and are able to drive any common speedometer, cruise control, or ECM. * Tremec T-56 Magnum reverse lock-out module VSS with dual output, pre-set as GM 40-pulse output on one and 16-pulse output on the other and can be adjusted with your iOS or Android device. * Includes wiring for reverse lights, reverse lock-out, and vehicle speed sensor.

4.0 out of 5 stars ( 5 )

$324.99

B&M Street and Strip Transmissions

B&M remanufactured Street and Strip transmissions are put together with new gaskets, bushings, seals, thrust washers, high performance friction materials, and gold zinc plated hardware. The front pump is rebuilt to B&M specs and the valve body is recalibrated. They're built for extreme conditions and are perfect replacing a worn transmission, cruising, and racing.

3.29 out of 5 stars ( 14 )

$3,849.95

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$4,150.95

Boss Hog Street Bandit Torque Converters

Torque converters are considered one of the most mysterious mechanical components in today's vehicles. They function like a clutch, and keep the engine running even when the vehicle comes to a halt. By designing the stall speed to match both the engine and desired stall speed, ACC Performance converters help low-end idle speeds, improve performance, and acceleration. ACC Performance Products has emerged as an out-right leader in torque converters and here's why: * Boss Hogs are welded, not furnace-brazed; furnace brazing is not the best way to adhere torque converter components, it will erode and ruin the stators and all rotating parts * Industrial Torrington bearings handle more torque than smaller, uncased needle bearings * Aircraft aluminum washers instead of fiber washers put more horsepower and torque directly to the ground * ACC converters are hand-built and tested to ensure that you get the best converter money can buy * With returns below one percent, you are assured of the highest quality parts available * Street Bandit converters are designed to handle as much as 650 hp * Custom-engineered turbine hubs maintain the highest quality, strength, and durability * Stators are built with high-flow vents and channels for greater cooling to handle greater power and higher temperatures * Engineered with a single bolt pattern that makes ACC converters surprisingly light to free up your motor and allow it to gain rpm quicker Notes: * Boss Hog Street Bandit torque converters are not designed to handle the extreme shock and abuse of nitrous oxide or trans-brakes * It is imperative that a transmission cooler be added with any torque converter that is rated over stock stall speed

3.98 out of 5 stars ( 105 )

$368.88

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$703.87

Centerforce Billet Steel Flywheels

Centerforce billet steel flywheels are available for popular import and domestic vehicles, including trucks. They're CAD/CAM-designed and CNC-machined from billet steel for precise, no-hassle, bolt-in installations. No modifications are required in combination with either Centerforce clutches or other clutch assemblies built to OEM specs. These rugged flywheels are SFI-approved, so you know that you can count on them--on the street and on the track.

4.5 out of 5 stars ( 62 )

$329.95

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$608.95

Mile Marker Supreme Locking Hubs

Mile Marker Supreme lockout hubs offer all-metal construction. Built to exacting standards, they feature patented technology and smooth operation for the performance that you expect and need. Supreme lockouts are available for many applications, domestic and import, and come in your choice of great looking chrome or stainless steel. These hubs are made by die-casting aluminum into pre-made stainless jackets for the ultimate combination of light weight and corrosion resistance. Replace your old hubs with ones made to be abused--Mile Marker Supreme lockout hubs.

4.71 out of 5 stars ( 196 )

$149.00

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$299.00

Summit Racing™ Aluminum Transmission Pans

Summit Racing™ aluminum transmission pans are engineered, cast and CNC machined from A319 aluminum. Offered in a natural finish with your choice between a cast-in "Summit" logo or a classic ribbed design, these pans look great and are built to last. Engineered to withstand the toughest conditions, they feature cooling fins for enhanced heat dissipation and improved durability. The thick flange gives these pans increased rigidity, promoting even gasket retention and reduced potential for leaks. The deep style pan boasts an increased fluid capacity, promoting improved fluid longevity and fluid cooling without the need to modify the dipstick, while the drain plug makes future fluid changes hassle and mess free. These pans come complete with installation instructions, mounting bolts, gasket, a 3/8 NPT drain plug, filter (most applications), and filter extension tube and tube o-ring where necessary, giving you everything needed for a seamless installation. Upgrade your transmission with confidence using top quality parts from Summit Racing, where form meets function for unparalleled performance and reliability.

4.58 out of 5 stars ( 488 )

$174.99

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$224.99

Sonnax Heavy-Duty Remanufactured Valve Bodies

Sonnax heavy-duty remanufactured valve bodies are built to overcome chronic shift and converter clutch apply complaints. It provides firmer shifts and a moderately increased pressure curve to improve performance, especially in truck and towing applications. Numerous Sonnax valve upgrades are included to restore hydraulic clearances that lead to shift complaints, clutch distress, converter complaints and codes, solenoid issues and pressure problems. Line pressure rise has been moderately increased to overcome shift complaints, delayed engagements, and to increase holding power to the clutches. To guarantee the highest level of operational performance, this remanufactured valve body is tested on state-of-the art equipment to verify that solenoid feed, clutch, converter, and line pressures match or exceed OE specifications. Choose your preferred kit packaged for your transmission. The valve body includes the following: * Oversized TCC regulator valve and sleeve, and limit valve spring for firmer TCC application * O-ringed bore plugs and abuse plugs * New accumulator control valve and sleeve with spring * Oversized AFL line up * New forward accumulator piston and seal * New pressure switch manifold * New EPC solenoid * New TCC PWM solenoid Kit contents: * Remanufactured valve body * Separator plate * Upper case gasket plate * Lower valve body gasket plate * 1-2, 3-4 accumulator springs * EPC solenoid harness adapter for 2003 to later units * Sonnax line pressure booster kit

4.5 out of 5 stars ( 4 )

$400.99

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$627.99

Performance & Replacement Transmission & Drivetrain Parts