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Transmission & Drivetrain

Performance & Replacement Transmission & Drivetrain Parts

Performance & Replacement Transmission & Drivetrain Parts

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.

Part Groups

Results 1 - 24 of 32

Dorman Wheel Hub Dust Caps

Dorman wheel hub dust caps are available in a variety of styles and finishes to add a touch of style and added protection to your brake rotors. The caps are offered in nearly a dozen sizes for secure fitment on specific applications. Help prevent dirt and moisture from disturbing your brake components. Order and install the number of dust seals needed.

4.28 out of 5 stars ( 46 )

$4.99

$20.99

Yukon Gear & Axle Drive Flange Caps

Yukon Gear & Axle drive flange caps are designed to keep your axle sealed up and free from dirt, dust, or other debris that could cause harmful damage. They are manufactured from billet aluminum and bolt in place with countersunk Allen head bolts, sold separately. Order the caps designed to fit your axle application.

Not Yet Reviewed

$158.99

$542.99

Proform Perfect Launch Differential Covers

You've improved your reaction time and now it's time to inform your competition. Proform Perfect Launch differential covers state the facts with their logo machined on the raised reinforcing surface. These rear-end covers are made of lightweight but tough aluminum and have been specifically designed to add strength to the rear housing case, particularly during heavy torque situations. Precision-milled and painted black, these Perfect Launch covers include two bolts to stabilize bearing main caps, two magnetic drain plugs, and mounting bolts. You can lose a little weight in your rear-end and send a message to your competition with Perfect Launch reinforced differential covers from Proform.

4.48 out of 5 stars ( 119 )

$161.99

Spicer Drivetrain Products Life Series U-Joints

Spicer Drivetrain Products Life Series U-joints consistently outperform the rest, so you can hit the road or trail with confidence. Cold-forged from high-quality steel, these SPL universal joints feature synthetic thrust washers, multi-lip seals, and the choice of greaseable or non-greaseable. Get the most out of your rig with Spicer Life Series U-joints. Order the replacement model designed to fit your vehicle.

4.83 out of 5 stars ( 113 )

$27.99

$66.99

Yukon Gear & Axle Hardcore Drive Flange Kits

True blue off-road runners often require drive flanges to withstand the abuse of big power and tall tires. Yukon Gear & Axle Hardcore drive flange kits were conceived to deliver strength and performance over the roughest terrain. A pair of heat-treated 8620 steel flanges, as well as caps, spacers, and all necessary hardware for both sides are included. Yukon Hardcore kits—designed for those who enjoy serious adventures on the trail!

Not Yet Reviewed

$542.99

SKF Bearings U-Joints

Don't ignore the signs! A clunking and clanging noise, intense vibrations at accelerated speeds ... it could be an indication of a failing U-joint. If that's the diagnosis, here is the solution--replace it with one of the SKF Bearing U-joints. These drivetrain components are engineered from quality materials to meet or exceed OE standards.

5.0 out of 5 stars ( 1 )

$18.99

Yukon Gear & Axle U-Joints

When you don't need a Super Joint, Yukon Gear & Axle also offers other U-joints—including standard, adapter, and lifetime models. But, even though they're not "super," all Yukon universal joints are tough enough to keep your shafts connected and spinning with awesome performance. Order the model designed for your application.

4.09 out of 5 stars ( 23 )

$44.99

$104.99

Yukon Gear & Axle Lifetime Series U-Joints

Yukon Gear & Axle Lifetime Series U-joints will restore smooth, quiet operation of your driveline. Small, but vital parts or your vehicle, Yukon U-joints are built tough to provide the long-lasting, excellent service you want paired with great value. Replace a worn or seized-up universal joint with Yukon Lifetime Series U-joints.

Not Yet Reviewed

$119.99

USA Standard Gear Driveshafts

USA Standard Gear driveshafts are high-quality, direct replacement units to repair your binding, bent, or rusty driveshaft. This critical component keeps the power flowing from transmission or transfer case to your differential. Order the model recommended for your vehicle and engine application. Features include: * 100 percent new components * Slip yokes and U-joints are lubricated with high-temperature grease * Fully assembled for simple out-of-the-box replacement * USA Standard "Perfect Fit" driveshafts are guaranteed for proper fitment and easy installation * Strengthened over common, OE-replacement shafts to prevent failure * Dynamically balanced to ensure smooth operation and long life

4.67 out of 5 stars ( 6 )

$419.99

$811.99

ACDelco U-Joints

ACDelco U-joints deliver the fit and performance you expect for your vehicle. They will provide pivot points that driveshafts depend on for reliable performance. These replacements are available in different size options. Order the model best suited for your application.

Not Yet Reviewed

$51.99

Spicer Drivetrain Products Light Duty U-Joints

Spicer Drivetrain Products light-duty U-joints feature journal crosses that are manufactured from high-quality alloy forgings and heat-treated for maximum life. The bearing cups are case-hardened for strength and durability, while the seals are crafted from nitrile rubber for optimum grease retention and contaminant exclusion. Ample grease reservoirs in each trunnion assure effective lubrication; they're pre-filled with high-quality synthetic lithium grease, providing superior friction-reduction and resistance to higher temperatures. These replacement universal joints are available for dozens of positions, in greasable and non-greasable styles. Order the model designed to fit with your vehicle and engine type.

4.69 out of 5 stars ( 152 )

$16.99

$33.99

Spicer Drivetrain Products Life Series Plus U-Joints

Spicer Drivetrain Products Life Series Plus U-joints will provide premium performance in the most demanding environments. Building on the superior design, lubrication, and sealing package of Spicer Life Series (SPL) U-joints, the SPL Plus u-joints feature upgraded grease, seal, seal guard, and spacer material. Features of Spicer SPL Plus U-joints: * Extended U-joint life--journal cross engineered with a cold-formed body to ensure better wear and overall strength * Bearing cups are heat-treated for strength, precision-ground, and case-hardened for durability * Multi-lip seal keeps grease in and contaminants out with enhanced seal and seal guard materials and offers maximum retention in a wider range of environments * Thrust washer eliminates friction, end galling, and metal-to-metal contact * Enhanced with synthetic grease--upgraded green synthetic grease significantly improves minimum and maximum temperature capabilities and increases bearing life

5.0 out of 5 stars ( 2 )

$34.99

Summit Bucks

Moog Super Strength U-Joints

Moog Super Strength U-joints are precision-manufactured to exacting standards. They have forged and case-hardened alloy steel crosses and heat-treated needle bearings. Cold-formed radial bearing cups provide 360 degree lubrication distribution, while superior-quality seals and a grease fitting make for easy maintenance. In addition, the Super Strength U-joints have an exclusive microshield coating to protect against rust and corrosion. They are available in greasable and non-greasable styles for more than a dozen positions--in universal and vehicle-specific applications.

4.58 out of 5 stars ( 225 )

$54.99

Rugged Ridge Manual Locking Hubs

Rugged Ridge manual locking hubs are crafted from impact-resistant nodular iron and feature a corrosion-resistant die-cast aluminum cap. They provide better 4WD performance when locked (and improved fuel economy in 2WD when unlocked) than automatic hubs. These hubs don't have the slippage or partial engagement/disengagement issues that plague automatic hubs. They're durable, easy to install, and cost-effective! Order the pair of Rugged Ridge manual locking hubs designed to fit your application.

4.39 out of 5 stars ( 109 )

$159.99

$309.99

Spicer Drivetrain Products Front Axle Shafts

Spicer Drivetrain Products front axle shafts feature an increased U-joint size that provides 25 percent higher yield strength than original U-joints. They offer unparalleled strength and longer life—the outer stub is re-engineered for added strength; improved snap ring retention reduces shock load failures; and material has been removed from the body and added to the yoke ears (to equalize deflection through the yoke and reduce bearing cap spinning). The axles are made from durable steel, with a micro-alloy improving their strength and a statistically controlled heat treatment ensuring proper hardness. Order the replacement model designed for your vehicle application.

4.63 out of 5 stars ( 129 )

$94.99

$574.99

ARB Differential Covers

When off-road, encountering obstacles and hazards that could inflict expensive damage to your differential is inevitable. ARB differential covers are made from high-tensile strength nodular iron (tougher and harder than carbon steel); they are engineered to protect the differential and ring and pinion from off-road hazards. Available for a select line of differentials, they are offered in red or black powdercoated finishes. Features of ARB differential covers include: * Computer-optimized, cross brace design increases the structural rigidity of the entire axle * Helps keep the ring and pinion gears meshing on the flat faces of the teeth--greatly increasing ring and pinion life and overall strength * Top-quality, rare earth magnets on both the drain plug and dipstick collect metallic particles * Dipstick magnet allows the oil to be checked for tell-tale signs of internal damage * Prolonged carrier bearing life (especially on high-output vehicles) from improved support of bearing alignment * Approach/departure angles optimized by angled exterior surfaces that minimize hang-ups * Unique dipstick/filler cap design allows differential oil level to be adjusted for rotated differential housings * Low-profile drain plug resists damage from obstacles * High-strength cap screws (included) are recessed into the cover for impact protection

4.69 out of 5 stars ( 26 )

$209.95

$219.95

Motive Gear Universal Joint U-Bolt Kits

Machined from steel, Motive Gear universal joint U-bolt kits have a unique design that provides more bearing surface for the universal joint bearing cap. These bearing retainer bolts are available to fit most of the popular U-joint sizes and yokes. Choose the style that's compatible with your vehicle's axle model.

4.0 out of 5 stars ( 4 )

$13.99

BD Diesel Differential Covers

BD Diesel differential covers are cast to cool. Specially engineered, the powdercoated aluminum covers are designed with internal and external cooling fins, plus an extra-capacity bottom sump. This strategy allows gears to pick up and deflect oil back onto the ring gear and into the pinion gear for cooler, longer life. BD Diesel differential covers are gasket-less, and each includes a reusable Viton® O-ring, stainless steel Allen head cap bolts, fill plug, and magnetic drain plug for a complete, easy, and "cool" installation.

4.75 out of 5 stars ( 8 )

$335.95

$368.95

GMB U-Joints

GMB U-joints are made to exact OEM standards using high-quality materials. They're designed to meet or exceed the service life of factory U-joints. These replacements feature heavy-duty needle bearings, cold-forged crosses and bearing caps, as well as a special steel composition. The U-joints are available in a wide range of styles. Order the model recommended for your application.

4.56 out of 5 stars ( 27 )

$12.99

$17.99

Perfection Clutch Master Cylinders

Perfection clutch master cylinders return hydraulic pressure to your clutch system. These OE replacements are developed, manufactured, and tested to meet rigorous OEM standards. They're made from quality materials—such as aluminum, cast iron, and durable plastic—offering strength and long service life. Some models include reservoir, cylinder cap, and pushrod. Hundreds of models are available; order the clutch master cylinder designed to fit your specific application.

4.0 out of 5 stars ( 2 )

$27.99

$124.99

Eaton Electronic ELocker Differentials

Eaton electronic ELocker differentials offer you the best of both worlds. Imagine having the comfort and convenience of an open differential for around town—and the powerful traction of a full-on locker when it's necessary. This is exactly what the Eaton ELockers provide. With the push of a dash-mounted button, you decide when the differential should be fully locked for maximum traction to both wheels, or free to differentiate for the best fuel mileage and tire tread life. Whether you're running a 2WD or 4WD, open or locked, the Eaton ELockers put the driver in total control! Order the carrier designed for your axle model.

4.0 out of 5 stars ( 12 )

$1,499.99

On Sale

B&M Differential Covers

B&M differential covers are strong and cool! Cast and machined from premium aluminum alloy, they feature heavy-duty structural cooling fins, a larger fluid capacity, and high-strength magnetic drain plugs that aid in catching ferrous metal particles. B&M differential covers add some strength with extra cooling ability to your rear end.

4.6 out of 5 stars ( 151 )

$472.95


$246.95

$532.95

Yukon Gear & Axle Differential Covers

Yukon Gear & Axle offers a full line of differential covers to suit your front or rear applications. These replacement covers protect your gears, keep lubricating fluid where it's needed—and on some styles, they offer added cooling and/or strength. Their large selection affords you options of materials, sizes, and finishes to get exactly what you need. Order the model recommended for your axle, differential case design, and engine specifications.

3.97 out of 5 stars ( 66 )

$188.99

$449.99

Summit Bucks

Moog U-Joint Fasteners

These Moog U-Joint fasteners are designed to hold U-joints in place and keep them from falling off. They are manufactured from high-quality materials for maximum durability on the road or trail. The fasteners are available in different configurations for specific U-joint models, so you can choose what's best for your application.

4.69 out of 5 stars ( 39 )

$9.99

$15.99

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