Transmission & Drivetrain
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Building awesome horsepower is only part of the story. You need to deliver all that power to your car or truck’s wheels! We’ve got torque-hungry high performance automatic...
Building awesome horsepower is only part of the story. You need to deliver all that power to your car or truck’s wheels! We’ve got torque-hungry high performance automatic and manual transmissions for street and strip applications, torque converters and clutch sets, flexplates and flywheels, plus limited-slip differentials, spools, lockers, ring and pinion sets, driveshafts, U-joints, axles, bearings, C-clip eliminator kits, transfer cases, shift kits, and rebuild kits. We also have a wide selection of trans-brakes, shifters, cables, and accessories—everything you need to put the power to the ground, Summit style.
Building awesome horsepower is only part of the story. You need to deliver all that power to your car or truck’s wheels! We’ve got torque-hungry high performance automatic and manual transmissions for street and strip applications, torque converters and clutch sets, flexplates and flywheels, plus limited-slip differentials, spools, lockers, ring and pinion sets, driveshafts, U-joints, axles, bearings, C-clip eliminator kits, transfer cases, shift kits, and rebuild kits. We also have a wide selection of trans-brakes, shifters, cables, and accessories—everything you need to put the power to the ground, Summit style.
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Keyser Manufacturing floating hub seals are needed for keeping in lubricants necessary to protect bearings—and to lock out water, dirt, and other contaminants. The seals are made from various quality materials, depending on the application. Without lubrication, your wheel bearings will quickly seize up and leave you stranded. Keyser Manufacturing floating hub seals keep lube where it needs to be so you can be on your way.
Not Yet Reviewed
$23.99
$14.50
Spicer Drivetrain Products axle shafts are manufactured to the same high standards as factory parts because they are original equipment. That means when an automotive axle is replaced with a genuine Spicer part, you're getting the same performance and reliability as when the vehicle rolled off the assembly line. Dana is constantly revolutionizing the technology behind its Dana axles and Spicer products—so the replacement axle shaft you purchase today may even exceed the standards set for the original equipment part you're replacing. Order the model designed to fit your application.
( 89 )
$155.99
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$521.99
Strengthen your race car's rear-end with Summit Racing™ Circle Track axle shafts. Our rear axle shafts are heavy-duty, cut-to-length components giving you the right fit for your application at the right price. These solid shafts are built from heat-treated 8620 steel for longer life. Featuring extra-long splines, Summit Racing™ Circle Track axle shafts can easily be cut to your desired length with a chop saw. Flanged 9 in. Ford axle shaft combo kits include axles, bearings, bearing retainer sleeves, seals, and 4-bolt retainers with new style Big Ford bearings when included. Get ready to make laps with a beefier rear-end and Summit Racing™ Circle Track axle shafts.
( 15 )
$182.99
Allstar Performance lends a hand to your car project with their 31-spline gundrilled axles. These quality steel axles come reasonably priced, so you can complete your job right--the first time. If you would like to lose some weight, they are perfect for the job. These axles fit most quick-change and 9 in. Ford rears and are designed for use with 24-spline drive flanges. If you need parts for your project, Allstar Performance 31-spline gundrilled axles are available in several lengths to fit your application.
( 1 )
$229.99
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.
( 33 )
$272.99
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$723.99
Allstar Performance lends a hand to your car project with their 31-spline solid axles. These quality steel axles come reasonably priced, so you can complete your job right--the first time. They fit most quick-change and 9 in. Ford rears and are designed for use with 24-spline drive flanges. If you need parts for your project, Allstar Performance 31-spline solid axles are available in several lengths to fit your application.
Not Yet Reviewed
$145.99
Yukon Gear & Axle Mighty axle seals use the latest designs and manufacturing technologies to produce a precision fit, tight seal, and long life. Maybe your old seals are starting to wear or maybe you're replacing axles—both are a good time for new seals. Whatever the reason, order the Mighty seals from Yukon Gear & Axle designed to fit your application.
( 37 )
$11.89
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$106.99
Yukon Gear and Axle offers an extensive line of general replacement and high performance axles for passenger car, truck and SUV applications. Yukon Gear & Axle 4340 chromoly axles provide up to 50 percent more strength than stock axles … critical for extreme performance applications with large tires, high torque and high horsepower. These 4340 axles are manufactured using the latest technologies and the highest quality materials for long life in off-road, street and track use. Yukon Gear & Axle 4340 chromoly axles are offered in complete kits or individually.
( 36 )
$332.99
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$1,695.99
Yukon Gear & Axle 1541H alloy axles are part of their extensive line of general replacement and high performance axles for passenger car, truck, and SUV applications. They feature high-quality alloys and the latest in heat-treating technologies to provide strong axles for off-road, street, and track use. Direct-fit replacements are available for dozens of axle models associated with countless cars and trucks. Additional rear axle features include: * One-piece forged 1541H axles are 25 percent stronger than OE 1040/1050 axles * Full-floating axles available for select applications * Rolled splines provide 30 percent strength increase over cut splines * Larger spline upgrades available * 2-piece tapered axles available * Offered in many lengths * Wide variety of bolt patterns
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$104.99
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$1,060.99
Trail-Gear Rock Assault 9 axle shafts have a tapered design that allow for more yield during extra-torque load letting them flex without breaking. They shafts are heat-treated for the ultimate strength.
Not Yet Reviewed
$328.92
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$627.06
Clearance
Versatility by design allows tuning of NORAM racing products—including their clutch components—to fit your machine's unique characteristics as well as the track's. That means response based upon your standards, not somebody else's. Every NORAM racing go-kart part gets backed by years of technical innovation in design, precision engineering, and the use of the highest quality components. NORAM—much like The World's Speed Shop®—believes that high quality doesn't have to mean high price to help increase your chances of winning. The choice is simple. Why just run when you can fly with the NORAM clutch components designed to fit your application?
Not Yet Reviewed
$19.99
$11.50
Currie Extreme 60 high-pinion rear crate axles are the strongest 60 Series axles offered, designed for severe off-road use with up to 40 in. tires and V8 conversion horsepower. They're available in different gear ratios and center section locker types. Order the model recommended for your Jeep application. Extreme 60 features: * High-pinion design with ring gear load bolt * High-clearance radius bottom center section * Low-friction hardened steel skid plate * Desert racing-inspired full-floating hub assemblies * Full-floating 35-spline 4340 chromoly axles * Large 13.5 in. brake rotors
Not Yet Reviewed
$9,500.00
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$10,100.00
Currie crate axles deliver unrivaled strength, along with trail-tested, field-proven design. Their Currie 60 axles are complete pre-configured packages, for both front and rear applications, with direct bolt-in simplicity designed for severe off-road use, V8 horsepower, and up to 37 in. tall tires. They feature the Currie exclusive high pinion nodular iron radius bottom center section for improved obstacle slide over, heavy-duty 3 in. tubes, and the industry's strongest standard axle--full 35-spline inner/outer front and 40-spline semi-floating rear axles--making the Currie 60 axles the clear choice for serious off-road users. They increase axle width to 68.75 in. between wheel mounting surfaces for improved clearance with large tires. The front axle features 5 x 5 1/2 in. wheel lug pattern, while the rear is dual-drilled with both 5 x 5 in. (to match stock front axles) and 5 x 5 1/2 in. Upgrade strength, reliability, and functionality; replace your stock axles with Currie 60 crate axles.
Not Yet Reviewed
$6,050.00
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$7,250.00
Spicer Drivetrain Products rear axle shafts feature application-specific design and engineering, quality materials, precision manufacturing processes, and statistically-controlled testing. Through induction heat treating with a slower scan rate, Spicer delivers more consistent and stronger axle shafts. In addition, the cold-formed rolled spline eliminates the need for machining, which can cause stress fractures and premature failures. The Spicer Drivetrain rear axle shafts are available in a variety of styles, configurations, and options to fit your specific rear axle type.
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$117.50
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$606.99
Yukon Gear & Axle axle bearings are made from top-quality materials to original specs, so you can be sure that you're getting a quality product. These replacements are available for a variety of axle model applications, from the 1950s and up.
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$69.99
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$233.99
Pacific Performance Engineering heavy-duty transmission pans do more than hold oil--they cool and protect! They have thick cast construction from high-grade aluminum alloy. Thanks to internal and/or external cooling fins and robust side ribs, PPE transmission pans are much stronger and they allow fluid to run much cooler. Lastly, they feature an insanely strong Neodymium magnet-equipped stainless steel drain plug that attracts and holds harmful metal particles floating in your oil. Really, your pan just holds the oil? It's time for a change--upgrade to cooler Pacific Performance Engineering heavy-duty transmission pans.
( 37 )
$242.99
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$377.99
On Sale
Hays hydraulic release bearing kits will convert your favorite factory hydraulic-equipped car from a mechanical-style to hydraulic-style release bearing. Hays throwout bearings offer full adjustability, reduced pedal effort, and an easy set-up with most single or dual disc clutches. These kits are designed to fit various manual transmissions; order the model recommended for your vehicle and tranny application. Features and benefits include: * Improved clutch engagement and disengagement * Adjustable design provides increased travel over stock release bearing * Retrofit kits offer a simple way to add easy-effort hydraulic clutch actuation * Floating design bearing with large O-rings and PTFE backup rings to eliminate fluid leakage * Kits include bearing assembly, bearing retainer (where required), mounting hardware, adjustment shims, and -3 AN feed line
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$299.95
$269.95
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$677.95
Aisin clutch kits combine high-quality clutch components to deliver optimal drivetrain efficiency. Providing excellent power transfer with precise pedal feel, they are always OE-matched. Kits include clutch cover and disc, release bearing, pilot bearing (where applicable), and a vehicle specific alignment tool for trouble-free installation Additional features of Aisin clutch kits include: * "Hot Seating" process stabilizes the diaphragm spring * Diaphragm spring turnover (DST) cover improves release * Higher load capacity * Premium-quality, heat-resistant, and less abrasive facings ensure extended service life * Disc spring design enhances engagement and release * Floating rubber cushions or twin-hub design improve rigidity to reduce noise, vibration, and harshness
( 4 )
$102.99
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$177.99
Clearance
Clutch master cylinders should be the first thing checked when you experience shifting problems with your vehicle's manual transmission. Centric Brakes offers a wide range of premium clutch master cylinder replacements, constructed to meet the highest standards outlined by OES and OEM manufacturers. They're a direct fit and (where applicable) come with complete reservoirs, floats, switches, and aluminum casting body design. Centric Brakes premium clutch master cylinders match the factory fitment, quality, and configuration—and will get you flying through gears as you're moving down the road. Order the model recommended for your application.
Not Yet Reviewed
$26.79
$23.50
On Sale
Centerforce TRIAD XDS clutch kits supply triple disc clutches developed for vehicles requiring a holding capacity of 500 to 1,200 ft.-lbs. of torque at the crank. For superior clamp load the billet pressure plates feature their patented centrifugal weight system (where applicable), while the patented ball bearing-actuated pressure plate (where applicable) provides light pedal effort. TRIAD XDS disc packs are equipped with metallic friction material for increased holding capacity and they are available in either sprung or solid hub styles, depending on application. The clutches are equipped with lightened billet steel flywheels providing low inertia, resulting in quicker rpms. Centerforce TRIAD XDS clutch kits may feature: * No complicated setup or adjustments * 8.75 in. diameter designed to lower inertia for heavy track use * Centrifugally assisted diaphragm to increase holding capacity with rpm * Solid hub design offers light weight and quick shifts * Patented multi-disc floating disc and drive disc designs * Holds 500 to 1,200 ft.-lbs. of torque at the flywheel * Patented ball bearing pressure plate * Specification card * Excellent driver control * Positive drive floater * Precision-balanced * ARP fasteners
Not Yet Reviewed
$2,309.95
$2,078.96
Summit Racing™ 9 in. Ford Grand National rear-end assemblies are a good choice for your Circle Track race car. Offering quality-built performance at competitive pricing, our Summit Racing™ rear-end assemblies will keep you circling with the big boys without empting your wallet. These full-floating 9 in. Ford Grand National assemblies offer safety on the track and are delivered with a floater housing, lightweight hubs, rotors, solid axles built from 8620 heat-treated steel, bearing seals, rotor bolts, and lug nuts. Assemblies come with new stamped centers manufactured in the USA and are available with 28 or 31-spline solid axles. Axle tubes are turned for the easy installation of birdcages and suspension mounts. And, just like the big boys, the axle caps are red and etched with the Summit Racing™ logo. Do you need a little more grip in the corners? Or, maybe you got a little too chummy with the wall? No matter the reason, you've chosen wisely--Summit Racing™ 9 in. Ford Grand National rear-end assemblies.
( 1 )
$1,593.97
Advance Adapters GM 14-bolt yokes are designed to replace your strap-style OEM version. They feature a 1350 U-bolt design and fit the full-float GM Corporate axle. These yokes are manufactured from durable cast steel and install easily with the factory pinion nut.
( 7 )
$70.98
What's better than Trail-Gear Rock Assault 9 axle housings? Rock Assault 9 with Trail-Gear's true, full-float, 35-spline axle shafts! These shafts are manufactured from heat-treated 4340 chromoly and feature a tapered design that allows for more yield during extra torque load, letting them flex without breaking. Of course, the Rock Assault 9 axle housings are complete welded assemblies from flange to flange, including the unit bearing pockets and inner housing seals. And now, these strong axle housing include the strength of their axle shafts, making it even easier to upgrade your build. Get ready to rock on with Rock Assault 9 axle housings with shafts.
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$69.99
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$1,599.99
PEM Racing's Ford 9 in. Grand National rear-end assemblies are used for their strength and durability, particularly in racing applications like circle track racing and high-performance street cars. Chosen for their ability to handle high horsepower and extreme cornering forces, the 9-inch design features a full-floating axle, meaning axles are not attached to the housing and instead carry the load independently, offering enhanced safety and reliability compared to traditional axles. The removable center section of the 9-inch rear-end allows for easy gear ratio changes, making it a convenient choice for racers who need to experiment with different gear combinations.
Not Yet Reviewed
$1,136.99
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