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.
Richmond Gear is the leading manufacturer of professional-quality, high performance ring and pinion sets. The superior quality of these gear sets is the result of years of racing development, outstanding design, and state-of-the-art manufacturing methods. Richmond also offers these gear sets in a lightened version for the weight-conscious enthusiast. Their lightened ring and pinion sets feature an outstanding rotating weight loss of up to 6 lbs., ground pinion threads for trouble-free installation, and a special heat treatment for improved strength.
( 309 )
$223.06
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$725.99
Motive Gear Performance ring and pinions are perfect for dedicated racing or off-road vehicles. Their gear sets are made from first-run steel, they never use recycled metal. This allows Motive Gear Performance ring and pinions to handle the extreme torque from high-horsepower racing engines. Extensive engineering, computer-controlled heat treatment, superior strength, quality and the widest selection of racing gear ratios, makes Motive Gear Performance ring and pinions the clear winner! Engineered to the highest standards, every Motive Gear Performance product goes through rigid quality control processes in their in-house lab. Motive Gear Performance also offers a lightweight alternative to standard ring and pinion gear sets. Their AX Series ring and pinions are designed to increase horsepower and efficiency by removing rotating weight. Professional race teams have used custom-lightened drivetrain parts for years, resulting in faster times and more wins. The AX Series gears from Motive are lightened during the manufacturing process; this results in gear sets that have been engineered, not modified. Computer-controlled heat treatment, index tooth spacing, and CNC machining all go into AX Series performance gear sets. Motive Gear Performance: What the pros run!
( 194 )
$191.99
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$1,456.99
Motive Gear Performance competition-grade products are engineered to endure extreme punishment in dedicated racing vehicles operating in the harshest environments. They can be found in the winner's circle at NHRA, IHRA, SODA, SCORE, BITD, Ultra-4, and NASCAR events. The superior quality of Motive Gear Performance Pro Gear ring and pinion sets is the result of years of racing development, outstanding design, and state-of-the-art manufacturing methods. Pro Gear competition-grade gear sets are cut from 9310 steel, and then heat-treated to a precise hardness through a computer-controlled process. They are available in the widest selection of gear ratios for all popular axle housings. Racers know Motive Gear Performance ring and pinion sets will see them through to the checkered flag race after race. All Motive Gear Performance products meet strict quality standards through advanced manufacturing techniques and extensive testing is performed on all products by their in-house engineers. Competition-grade Motive Gear Performance Pro Gear ring and pinion sets are used by the top drivers and racing teams worldwide. Winning is #1, and Motive Gear can get you there!
( 2 )
$576.99
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$1,544.99
Motive Gear differential pinion gears are tough replacement components you can put your trust in. Motive Gear offers one of the largest lines of performance ring and pinion gear options available with gear sets in a wide range of ratios for nearly every application, both on and off-road. The superior quality of their components is the result of years of racing development, outstanding design, and state-of-the-art manufacturing methods. Extensive testing is performed on all products by Motive Gear in-house engineers. Choose the gears made for your vehicle.
Not Yet Reviewed
$20.99
Allstar Performance ring and pinion gear sets are engineered, manufactured, and tested for maximum performance. The high-quality differential components are suitable for race, street, and off-road use. Their superior quality is the result of years of development, outstanding design, and state-of-the-art machining methods. Allstar ring and pinion sets are available in many different ratios to fit a variety of differentials. Plus, they're perfectly matched to provide you with reliable and quiet operation.
( 52 )
$169.99
Move out of the corners faster with Summit Racing™ Circle Track ring and pinions. Our superior lightened 9 in. Ford gears lessen your rotating weight for faster acceleration. Built from high performance 8620 steel, these Summit Racing™ gears offer several ratios for your Circle Track race car. Get power to your wheels and accelerate down the straightaways with the quality and value of Summit Racing™ ring and pinions for Circle Track.
( 10 )
$225.99
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$279.99
On Sale
Auburn Gear Select-A-Loc differentials maximize your vehicle's traction with on-the-go system engage. These electronically controlled traction-enhancing differentials are selectable lockers offering the traction control of a limited-slip differential and a full-locking differential--all in one! When locker switch is off, the clutch pack activates the limited-slip mode. As torque increases, the separating forces within the differential gears increase, causing the clutch pack to be compressed, in turn providing bias torque to the highest traction wheel. When the locker switch is turned on, electronic current is sent to the electromagnetic coil which locks the axles together. Auburn Gear Select-A-Loc lockers feature a unique cone-clutch design with gearing made from aircraft-quality 9310 heat-treated billet steel for tough-as-nails strength. The lockers operate quietly without any shift fork or pins to line up to change the locker mode. With a limited-slip mode for on/off-road excitement and a true locker mode for the quarter-mile or nasty off-road terrain, Auburn Gear Select-A-Loc differentials deliver superior traction capabilities on the street, at the track, or off-road.
( 10 )
$1,089.99
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$1,802.99
$858.50
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$1,622.69
USA Standard gear axle shafts are high-quality replacements machined from steel for superior strength and performance. They're available for dozens of differential case design applications, such as AMC, Ford, GM, Chrysler, and Dana. The shafts are offered in nearly a hundred lengths and numerous wheel stud patterns. Order the model recommended for your vehicle.
( 36 )
$82.50
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$2,410.99
Whether on the road, on the trail, or towing, superior cooling is vital for reliable transmission shifting. Yukon Gear & Axle high-capacity automatic transmission pans offer a ribbed design and higher-than-stock volume for increase cooling and longevity. High-quality aluminum construction and a durable black powdercoat finish provide strength and rugged looks that, unfortunately, only you and your mechanic will be able to see and appreciate. Yukon Gear & Axle pans are equipped with a magnetic stainless fill plug and an additional 1/8 in. NPT plug.
Not Yet Reviewed
$430.99
Motive Gear differential pinion bearings are precision-engineered to provide you with superior quality, along with energy-efficient and cost-effective friction management. For a proper fit that will run smoothly, these single-row tapered roller bearings are your best bet when replacing old and worn pinion bearings. Order the pinion bearing application to match your vehicle specs.
Not Yet Reviewed
$29.99
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$49.99
Upgrade your rear-end with these Yukon Gear & Axle pinion supports. When you start adding horsepower and drive line upgrades, you need to upgrade your pinion support to withstand the extra abuse. These aluminum Yukon Gear & Axle pinion supports are far superior to your stock support, making them an ideal solution for both street performance and track cars alike. Yukon Axle & Gear offers these pinion supports for a variety of different mounting options, bearing types, and materials to make finding the right one for your ride easy.
Not Yet Reviewed
$173.99
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$241.99
Motive Gear is a leader in aftermarket drivetrain components with a long history in racing. Combining their expertise with Koyo's manufacturing results in a high-performance product. Koyo wheel bearing races offer superior durability, enhanced performance, and long-lasting reliability due to their high-quality construction and precision engineering to withstand significant shock loads, making them a preferred choice for racing and heavy-duty applications. Order the bearing races for your application needs.
Not Yet Reviewed
$3.99
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$43.99
Motive Gear is a leader in aftermarket drivetrain components with a long history in racing. Combining their expertise with Timken's manufacturing results in a high-performance product. Timken wheel bearing races offer superior durability, enhanced performance, and long-lasting reliability due to their high-quality construction and precision engineering to withstand significant shock loads, making them a preferred choice for racing and heavy-duty applications. Order the bearing races for your application needs.
Not Yet Reviewed
$6.99
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$21.99
Yukon Gear & Axle uses precision manufacturing technologies to provide top-quality, competition-tough axles—which serve as a superior replacement for worn-out or damaged axle assemblies. Order the model designed for your specific vehicle. To help restore precise steering, handling, and safety, choose the dependable OE-quality of a premium Yukon axle assembly.
Not Yet Reviewed
$149.99
Install FTI Performance sun gear bushings to restore critical clearances and resist untimely wear. These automatic transmission bushings—also referred to as Powerglide wedding bands—are made of high-grade materials to provide superior wear characteristics. This helps to eliminate premature deterioration for worry-free operation.
Not Yet Reviewed
$13.39
On Sale
Years after releasing their successful Rock Assault 9 axle housing, Trail-Gear decided to add a Toyota 8 in. version to the Rock Assault lineup. This housing is built to the same specifications as the Rock Assault 9 axles; however, they're built to accept the popular Toyota 8 in. differential. These housings have been tested in W.E. Rock, CalRocs, and King of the Hammers—so you know they'll stand up to the toughest terrain on earth. Trail-Gear started with a 1/4 in. thick formed shell for the center section made from A36 steel. This is a high-strength, low alloy, structural steel plate with a minimum yield strength of 36,000 psi. All of this is attached to an equally strong 1/2 in. thick faceplate for anchoring the DOM axle tubes. The axle tubes are secured by the industry's first 3-Point Attachment System, giving the tubes superior support and engagement into the center section. Trail-Gear also faces the center section to ensure your differential mounts flush against the axle housing to prevent any leaks. Rock Assault Fabricated 8 Housings are offered with 3.5 in. O.D. axle tubes with your choice of 1/4 in. or 3/8 in. wall thickness. NOTE: The housing is shipped with no ends. Housing ends must be sourced and installed to complete axle. Portal style ends are commonly used for this application.
Not Yet Reviewed
$1,199.99
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$1,499.99
$1,019.99
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$1,274.99
On Sale
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!
( 3 )
$999.99
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$1,699.99
$849.99
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$1,444.99
On Sale
Get your rig ready to rock on! Trail-Gear Rock Assault 9 front roller kits are built with the strength to climb boulders and blaze trails at prices that are hard to beat. The rock-hard housings start with 1/4 in. formed shells, and then a 1/2 in. face plate is attached. DOM axle tubes are welded to the center section with the industry's first 3-point attachment system, giving the tubes superior support and engagement into the center section. These kits are available in a choice of tubing wall sizes. Start or upgrade your build with Trail-Gear Rock Assault 9 kits. Trail-Gear front roller kits come with: * Rock Assault 9 axle housing * Unit hubs (lug nuts included) * Rock Assault 9 knuckles * Rock Assault 9 inner C's * Rock Assault 9 steering arm set * Rock Assault 9 billet aluminum seal housing kit * Rock Assault 9 fully loaded brake kit
Not Yet Reviewed
$4,299.99
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$4,499.99
$3,824.99
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$3,826.99
Richmond Gear Internal Rail 5-speed transmissions are packed with power and speed. The superior quality is a result of constant research and development, along with extensive testing at Richmond's facilities. These bulletproof transmissions feature aluminum case material. Winners run Richmond, shouldn't you?
Not Yet Reviewed
$2,761.17
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$3,407.99
Tremec offers a variety of TKX 5-speed manual transmission for select GM and Ford applications. Each model features different gear ratios. Order the transmission best suited for your vehicle. General product details: * Bolts up to a standard GM Muncie bellhousing or use a Quicktime bellhousing * Input Shaft: 26-Spline (requires 26-spline clutch disk) * Output Shaft: 31 Spline * 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
( 44 )
$2,999.99
American Powertrain ProFit Tremec TKX manual transmissions and installation kits put the power to the pavement with unmatched durability and versatility. Tremec has normally sourced their aftermarket transmissions from the OE side, such as the Magnum T-56 and the T-5, but this new design is made from the ground up as a strictly aftermarket transmission. Designed to fit classic muscle cars and customs, the TKX has a tighter, more streamlined case, and features 600 lbs.-ft. of torque capacity and are capable of engines speeds of 8,000 rpm with shifts at 7,500 rpm. The compact design provides clearance in most transmission tunnels without floor modifications, while case strength has increased from previous models with the new 3-piece aluminum housing and gaskets at all flanges simplifies installation and eliminates fluid leaks. Additional features include: * Designed with your specific vehicle application in mind * Available with multiple gear ratio configurations for compatibility for multiple applications with three shifter locations * Multi-cone synchronizers and synchronizer rings are made of sintered bronze and carbon for superior shifts * All gears are supported by caged needle bearings to reduce end play * Gears and shafts are made from ASTM 4615 grade steel and provide increased torque carrying capacity * TKX manual transmissions have 31-spline output shafts for added strength, built-in reverse light switches, and cruise control safety switches * The TKX also has separate GM and Ford case patterns and input configurations—with integrated GM and Ford transmission mount patterns * Installation kits include a driveshaft slip yoke made from cryogenically hardened steel, a polyurethane transmission mount, a steel roller pilot bearing, and a reverse light wiring harness
( 1 )
$3,995.95
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$4,559.95
Known for robust, superior quality, Tremec T-56 Magnum manual transmissions are brand new from the ground up with a 2.97 first gear. They can withstand up to 700 lbs.-ft. of torque, with gears featuring substantially increased face widths and 2-piece laser-beam welded construction. This allows for greater control of the tooth angles, pitch, and alignment. Additional benefits include: * Bolstered one-piece countershaft to resist distortion * Stronger input shaft * New synchronizers featuring fine-tooth angles * Redesigned shift forks * An extensively modified transmission case to prevent leaks under high-stress conditions and increase overall power-handling capabilities
Not Yet Reviewed
$3,545.00
ATI Super Pump front pumps are CNC-machined from billet aluminum or permanent-mold aluminum castings for precision and durability. Re-engineered lubrication circuits allow for increased flow volume in all critical areas. ATI increased the thickness of the pumps to improve oil pressure and volume at low rpm, resulting in a cooler-running transmission and converter. Features: * Superior pressure * Improved trans-brake hold * Prevents stator tube spinout
( 4 )
$331.99
Summit Bucks
Sonnax master servo piston kits replace your piston and cover with no modifications needed to the case. These direct-fit kits are stronger to handle higher pressure and feature a no-leak, dual O-ring billet aluminum servo for superior sealing.
Not Yet Reviewed
$78.74
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