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.
Showing In Stock Items. Show All 65 Items.
Sometimes you just want steel! Lightweight alloy flywheels can offer substantial benefits for certain situations, but sometimes they're just not your cup of tea. Maybe you're on a budget, maybe you're running a heavy drag car, or maybe you just don't need those benefits. If that's the case, McLeod has the answer. Their steel flywheels deliver all of the strength and reliability that you need, at a substantially lower price. They're neutrally balanced, but are drilled to accept balance weights for use on externally balanced engines. McLeod steel flywheels available for a wide variety of large and small engines.
( 102 )
$299.00
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$495.00
Auto Metal Direct clutch linkage sets are complete with all AMD individually-available, technically-correct components required—from pedal to clutch fork. The components are heat-treated with the correct protective finishes as the originals. Auto Metal Direct clutch linkage kits include: * Upper push rod, rod boot, and clips * Frame side bracket * Block side stud with seal * Frame side ball stud with nut and washer * Bellcrank felts * Lower adjustable rod * Return spring * Spring extension plate * Clutch fork to bellhousing rubber boot * Bellcrank assembly with installed pivot kit and zerk fitting * Assembly diagram
( 11 )
$124.99
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$289.99
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.
( 493 )
$621.55
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$987.99
Motive Gear is the leading manufacturer of driveline products for just about any vehicle, whether it is a stock daily driver or a full-competition 4x4 or race car. They are proud to offer an unmatched selection of quality components engineered and manufactured for the vehicle and for the way it is driven. Motive Gear ring and pinion sets are engineered to meet or exceed OEM specifications at a price that won't break your budget. Their broad selection of ring and pinion ratios is available for just about every vehicle made from the 1940s through the present. All Motive Gear products meet strict quality standards through advanced manufacturing techniques and are backed by their strong warranty. Their in-house quality control lab utilizes state-of-the-art equipment to continuously check Motive Gear products for strength, tolerance, and hardness. Only after meeting stringent quality standards are Motive Gear products packaged and ready for delivery.
( 283 )
$229.99
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$690.99
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.
( 12 )
$1,473.99
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$1,554.99
OER offers these reproduction clutch pushrods for a variety of applications. Each pushrod is a made to meet or exceed the quality of the factory original, ensuring a correct fit and proper function.
( 19 )
$23.79
Yukon Gear & Axle Dura Grip positraction carriers offer great traction and strength, and yet are not overly aggressive for the streets. These nodular iron or steel replacements are 4-spring, Raybestos composite, clutch-style, limited-slip carriers—with internal gears machined from forged 4320 steel with stronger teeth. Assembled in the USA, the Yukon differential carriers are rebuildable, allowing for repairs or modifications without buying a new unit. They're available for fitment with nearly two dozen axle models. What are you using to transfer power? Choose smooth operation with strong lockup abilities to transfer torque—benchmarks of the Yukon Gear & Axle Dura Grip positraction carriers.
( 135 )
$411.00
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$1,298.99
What kind of hidden performance does your vehicle possess that's ready to be unleashed? Spicer Drivetrain Products differential carriers supply the power for you to find out! You can increase your off-road traction, maintain streetability, and get ready to rock and roll in your truck or Jeep with the selection of carriers offered by this legendary manufacturer. Spicer goes above and beyond so your rig can do the same! Order the model and options recommended for your vehicle.
( 43 )
$778.99
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$1,021.99
Goodmark offers clutch pushrods to replace the worn originals on your stock clutch system. These quality-built linkage components install in the factory location with no modifications. They're available in multiple styles for fitment on hundreds of classic vehicle and engine applications from the 1960s, '70s, and '80s.
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$26.99
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$38.99
Motive Gear offers differential carrier cases for thousands of applications from 1955 and up. These replacements feature rugged steel construction and will accept all of your factory internal parts without any modifications. Models are available for countless differential case design types, including Chrysler, Dana, Ford, GM, and Toyota. Keep your wheels turning effectively; order the case and options recommended for your vehicle.
( 24 )
$105.99
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$389.99
Powertrax Grip Pro traction systems are the latest design in differential technology. They combine the smooth operation of a limited-slip differential, with the strength of a fully machined, forged steel case. Using 3x2 spiral gear engineering, the Powertrax Grip Pro delivers progressive and variable traction. Based on throttle input, you are in control of how much traction is applied. These differential systems are great for use where finesse is just as important as brutal traction. On the road or track, in the rain or snow, Grip Pro is a winner! The systems come fully assembled and there are no friction plates—so you can use any gear oil you like, including full synthetic and racing lube.
( 21 )
$665.00
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$1,026.98
SVL Drivetrain ring and pinion gear sets make it easy to find the right ratio for your application. Engineered and manufactured for all makes and ratios, they deliver the ideal blend of coverage, performance, and value. SVL starts their ring and pinion sets with a computer-generated gear summary. From there, the gearing is forged from alloy steel for optimal hardness; then the gears are cut with the utmost accuracy to ensure the smoothest possible ride—and computer-controlled heat-treating results in extra wear resistance. In the final stage of the process, the ring gear is mated to the pinion through gear lapping, which provides ideal meshing of the gearing. You can count on SVL Drivetrain ring and pinion gear sets to fit and function as expected in your automotive application.
( 30 )
$190.99
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$266.99
ACDelco GM Genuine Parts includes all the automatic transmission rebuild components you need to return your tranny to optimum performance. They are designed, engineered, and tested to rigorous standards, and are backed by General Motors. From the smallest to the biggest pieces, you can trust reliable ACDelco parts to restore, repair, and renew your GM.
( 13 )
$22.99
Street Master torque converters are designed for the driver who is looking for a competitive advantage. By raising the stall rpm, these converters will completely eliminate slow, sluggish starts. Recommended for stock to slightly modified engines for maximum performance, they'll allow the engine to idle smoothly when the car is in gear. All stall speeds are approximate ratings for fresh big block engines. Small blocks will vary 300 to 500 r.p.m. lower.
( 232 )
$416.99
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$1,066.99
Street Rod torque converters from Hughes Performance are designed and manufactured for street rod enthusiasts needing a bit of an upgrade over their OE stock converters. These converters feature silicon brazing for strength, needle bearings for reliability, and stator modifications for more torque multiplication. All stall speeds are approximate ratings for fresh big block engines. Small blocks will vary 300 to 500 rpm lower.
( 113 )
$365.99
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$895.99
Tow Master series torque converters from Hughes Performance are designed to increase bottom-end pulling power in your tow vehicle without sacrificing top-end efficiency or lockup. Because they offer your vehicle more power with less effort, mileage can be increased by as much as 1-2 miles per gallon. Recommended for slightly modified engines, these Tow Master converters help you get the job done. All stall speeds are approximate ratings for fresh big block engines. Small blocks will vary 300 to 500 rpm lower.
( 25 )
$462.99
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$719.99
Hughes Performance Fuel Miser torque converters reduce the slippage in your transmission by 25 percent. The result is better fuel economy, more efficient shifts, and cooler transmission temperatures. They are designed to work with engines over 400 c.i.d. as well as with diesel applications. All stall speeds are approximate ratings for fresh big block engines. Small blocks will vary 300 to 500 rpm lower.
( 19 )
$435.99
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$643.99
Sticking of bypass components, spring relaxation, or poor ball seat in Ford 4R100 and E4OD units will allow the bypass to open at lower cracking pressure. This reduces TCC (Torque Converter Clutch) apply pressure, cooler flow at the overdrive section, and radiator flow responsible for heat transfer. Sonnax automatic transmission cooler bypass valve kits allow the bypass valve assembly to be rebuilt, salvaging the OE fittings and maintaining cracking pressure at 70 to 75 psi. Features: * Hardened steel T-valve provides secure check ball seat and adequate bypass flow * New spring cracks open at 70 to 75 psi to provide lube if cooler is blocked or restricted * Hardened alloy steel check ball resists damage * Seven new O-rings provide positive seal for cooler circuit * Drop-in Zip Valve parts install quickly and easily Contents: * T-valve * Spring * Check ball * O-rings -- One small -- Two medium -- Two large -- Two extra-large
Not Yet Reviewed
$16.74
Ford Performance Parts driveshaft assemblies feature reduced overall weight and rotating mass that frees up horsepower and provides quicker acceleration, higher speeds, and lower ETs. They feature heavy-duty, 6061 aluminum, seamless drawn tubing and include high-strength U-joints or flange yokes. Available for a wide variety of Mustang applications, they are designed for increased horsepower applications to deliver exceptional strength and reliability. Depending on application, features include: * 1330 or stronger 1350 high performance U-joints * 28-spline or 31-spline yokes * 3.5 in. diameter * 0.114 in. or 0.125 in. wall thickness * Spline and slip design allows for installation and suspension movement * Hard plastic boot to keep grease in and water out; protects spline and slip from contaminants * Eliminates the need for a center support bearing * Direct bolt-in * Fully assembled and balanced
( 18 )
$491.99
If your automatic transmission is struggling to downshift properly, the problem might be your aging transmission kickdown cable. Installing new automatic transmission kickdown cables from Pioneer can solve that problem and allow you to shift at lower rpm. These cables connect the throttle mechanism to the transmission. Old cables can break, become slack, or stick. Maybe it's time to replace that old cable with a new one. Pioneer cables are designed to fit and function just like the original part and are made to last.
( 33 )
$18.99
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$30.79
RideTech 1958 Chevrolet air suspension systems are specifically designed for the 1958 Chevy B-body cars (including the Impala, Del Ray, Bel Air, Biscayne, Brookwood, and Nomad). They include everything needed to provide a lowered stance with dramatically improved handling and ride quality. These kits contain front upper and lower StrongArms, front and rear MuscleBars, plus front and rear HQ Series coilovers. Enjoy the benefits of buying a complete system that takes all of the guesswork out of your suspension upgrade. Features, items, and specs: * Must be used with 1959-64 stock spindles and disc brakes * Black powdercoated upper StrongArms feature corrected ball joint angles, and are fully assembled with ball joints, bushing, and cross shafts * Upper ball joints moved back to allow for additional caster setting (improves high speed stability and steering feel) * Black powdercoated lower StrongArms feature a double sheer lower mount for increased strength, and are fully assembled with ball joints, bushing, and cross shafts * HQ Series shocks allow fine-tuning and deliver excellent ride quality and handling with a 1,000,0001-mile warranty (rebound knob located on top of shock for underhood access) * CoolTide system using Firestone air springs * Front MuscleBar helps reduce body roll and creates room for wider front tires (includes PosiLink endlinks that provide immediate engagement between chassis and control arms) * Rear MuscleBar * Rear StrongArms provide added strength to help get the power to the pavement (includes a tubular upper wishbone specific to the 1958 model year)
Not Yet Reviewed
$4,680.00
Errrr, bang! Clunk clunk clunk. Very few parts last forever, especially those rotating at a high rate of speed. Spicer Drivetrain Products ring and pinion gears are perfect for replacing worn or damaged gears, changing ratios, or when refreshing the differentials. They hob and shave the gears for longevity with minimal mating stress, combine modern designs and materials including heat-treating and shot-peening to maximize life, and use high-grade steel for consistency and exceptional durability. Each gear set meets or exceeds Dana's standards for OEM equipment. Whether you need lower, higher, or the same ratio gears, look into Spicer Drivetrain ring and pinion gears with installation kit, available for hundreds of applications.
( 12 )
$257.99
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$1,464.99
DRP Performance offers premium low drag bearing kits for a wide range of applications, including many Ford, Chevy, and Pontiac cars from the 1960s, '70s, '80s, and '90s. Low drag hub components reduce friction and lower temperatures, making your wheels spin easier, delivering more horsepower to the track—all while reducing maintenance and making your race car faster. Enhance your performance on oval track asphalt, oval track dirt, drag racing, road racing, and street applications. Kits include a DPR bearing spacer, DRP Premium Super finished Bearing Kit, and DRP Ultra low drag seal. Here are details on each component: * DRP Bearing Spacer: A difference you can feel—in the pits and on the track. Bearing spacers make the most difference of any low drag hub upgrade. Properly installed, these spacers will provide an immediate increase in hub free spin, an improvement large enough to feel just by pushing the car around. And the benefit doesn't stop there. Bearing spacers make the most difference when a side load (cornering force) is applied. Drivers have commented on how much faster a car with bearing spacers free rolls when entering and through the center of the corner. Bearing spacers simplify and reduce hub maintenance. Spindle nut torque is no longer sensitive. In fact, with spacers installed, you can tighten the spindle nut as much as you want without overtightening the bearings. (DPR recommends 20-40 lbs.-ft.) Bearings will run cooler and do not need to be repacked as often. Bearing spacers are simple to install. DRP bearing spacers have a threaded adjustment, allowing the user to quickly set bearing end play or preload. A set-screw locks the spacer at the desired adjustment. Once installed, they do not need to be readjusted unless you replace the hub or bearings. Bearing spacers are used in virtually every application in professional motorsports. * DRP Premium Super finished Bearing Kit: Reduce bearing temperature by over 100 degrees F verses stock bearings! Increase free spin by over 250 percent! DPR starts with premium quality bearings and puts them through a super finishing process. This process removes the grind marks and greatly smooths the surface of the bearing roller, while leaving a "hatch" pattern to retain grease. Quality wheel bearings will last the life of most racing applications. * DRP Ultra Low Drag Seal: …billet aluminum, full PTFE sealing lip, reusable, great for any application: dirt, asphalt, road race, street Decrease seal drag by over 1,000 percent! Air gap seals create an "air curtain" to keep debris out and eliminate drag completely! DRP Ultra Low Drag hub seals are true, purpose-built, high performance seals. The housing is made from lightweight aluminum. The sealing element is a special PTFE blend, giving it natural low friction qualities. Seals are reusable. Order the kit recommended for your vehicle.
Not Yet Reviewed
$47.05
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$165.85
Hays Twister Full Race Torque Converters feature a custom-designed anti-balloon plate to stop any converter ballooning and swelling in racing situations. These torque converters are designed for use with a trans-brake and great for power adders such as nitrous, superchargers, and turbos. They're available with various RPM stall speed offerings to accommodate any mixture of modifications—including higher compression ratios, aftermarket camshafts, aftermarket cylinder heads, lower gear ratios, and vehicle weight loss. Additional product features: * All Full Race Series converters are built, tested, and proven to support up to 1,000 hp * Designed to handle the extreme shock and abuse of trans-brakes, nitrous oxide, superchargers, and turbochargers * State-of-the-art spray welding process is used in select areas. Spray welding provides clean, strong, and consistent fusion while also increasing strength through hardening from higher process temperature * Each converter is hand-built and inspected in every step of assembly to ensure top-of-the-line quality * All Hays torque converters are internally welded, compared to brazing. Testing has shown welding provides longer converter life while also enhancing consistency * Heavy-duty Torrington bearings are used for greater strength and durability * Stators are chosen with high-flow vents and channels to promote cooling in heat-producing higher horsepower applications * Increased horsepower and acceleration due to a weight-saving, one-application design. Almost all Hays converters are built for one application to reduce weight, compared to a multi-bolt pattern converter * Full Race Series torque converters are offered in several different stall speeds for popular automatic transmissions.
( 1 )
$899.95
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$1,949.95
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