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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.
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BDS Suspension Transfer Case Drop Kits
Maintain proper driveline angles on your truck, SUV, or Jeep by installing a BDS transfer case drop kit. These new kits utilize one-piece, heavy-duty steel brackets or tube spacers, E-coated for durability and corrosion resistance, to drop the T-case to reposition the output shaft on lifted applications. The transfer case drop kit is sometimes required if you experience a slight driveline vibration. Choose the kit designed for your vehicle.
Not Yet Reviewed
$20.95
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$38.95
Rough Country Transfer Case Drop Kits
Rough Country transfer case drop kits allow for better driveshaft angles reducing driveline vibration. They offer easy bolt-on installation and include hardware. Select the kit designed for your vehicle.
Not Yet Reviewed
$39.95
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$69.95
TransGo Automatic Transmission Drop-In Pump Flow Control Valves
TransGo Performance offers drop-in pump flow control valves for nearly a dozen automatic transmission models. These repair kits are easy replacement solutions for the common complaint of surging or bumping in and out of gear. Order the kit recommended for your application. * Corrects/Prevents/Reduces: -- No movement -- Falls out of gear at idle -- Shudder with throttle -- Limp-in with pressure codes set
Not Yet Reviewed
$44.36
Clearance
Motive Gear Master Ring and Pinion Installation Kits
Motive Gear master ring and pinion installation kits include everything that's in their regular differential kit—plus pinion shims, carrier shims, and ring gear bolts (where applicable). You also have the option of upgrading to higher quality bearings by adding "T" to the end of the part number on some models. Make a better choice for your ring and pinion installation with Motive Gear differential master bearing kits. Order the model designed for your vehicle application.
( 349 )
$166.99
Yukon Gear & Axle Bearing Kits
Yukon Gear & Axle bearing kits offer quality and cost savings. When you don't need a master overhaul, these kits can save you some money. They include Timken bearings and races, along with high-quality small parts--and each kit is checked for the right fit to meet your application and replacement needs. These packages are available for dozens of axle models. So when you're ready to install replacement ring and pinion gears in your differential, start with a dependable bearing kit from Yukon. Yukon Gear & Axle bearing kits include: * Pinion bearings * Carrier bearings * Crush sleeve (where applicable) * Oil baffles and slingers (where applicable) * Pinion seal * Gear marking compound and brush
( 9 )
$366.99
Yukon Gear & Axle Ring and Pinion Sets
Yukon Gear & Axle ring and pinion sets are strong but quiet performers. Designed to handle some of the harshest conditions, these sets utilize the latest design and manufacturing technologies to afford you a smooth running gear that's durable and easy to set up. Yukon ring and pinions are available in hundreds of size, ratio, and axle model options. Whether you're on the street, off-road, or at the track, you'll experience unrivaled power and gear performance. Order the model recommended for your application.
( 173 )
$438.99
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$653.99
Yukon Gear & Axle 1541H Alloy Axles
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
( 158 )
$642.89
Yukon Gear & Axle Minimum Install Kits
Yukon Gear & Axle minimum install kits are perfect when you just need the basics. They're a low-cost solution for gear changes in newer vehicles where the bearings can be reused. Available for a wide variety of applications, the kits come with high-quality components to ensure a smooth setup. Yukon minimum install kits include: * Pinion seal * Crush sleeve (where applicable) * Complete shim kit * Gear marking compound and brush * Pinion nut, O-ring, baffles, slinger (varies by application) * Extensive instruction manual
( 12 )
$55.99
Trail-Gear Rock Assault Front Axle Housings
Trail-Gear Rock Assault front axle housings give you clearance to go where you want and the muscle to do it! Their strength comes from heavy-duty, press-formed, 1/4 in. plate steel center sections; 1/2 in. plate steel differential mounting surfaces; 5/16 in. thick 1020 DOM axle tubes; and forged 1035 steel knuckle balls. Trail-Gear's knuckle balls are stronger than stock, so there are no worries of them becoming closed or bent. And, the thicker differential mounting surface ensures that the studs cannot pull out, even under heavy loads. Trail-Gear's design—offset tubes and shaved center section—provides you with added clearance to climb the high country. Plus, since housings are precision-aligned with computer imaging, you can rest assured they're 100 percent straight and true. You have a choice of bare tubes, or with spring perches installed—or 3-link ready with a panhard bracket included. You're equipped to attack any terrain with Trail-Gear Rock Assault front axle housings.
( 1 )
$1,599.99
Yukon Gear & Axle Differential Crush Sleeves
Major components, such as the ring and pinion, play a starring role in your gear train's operation. However, they couldn't do their jobs properly without a supporting cast, including these differential crush sleeves from Yukon Gear & Axle. The durable steel collars prevent your pinion bearing from being preloaded too tightly—and help prevent the pinion nut from loosening. When the time comes to service your differential, choose Yukon Gear & Axle crush sleeves, available in configurations for dozens of specific axle applications.
( 11 )
$16.89
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$33.99
Yukon Gear & Axle Differential Carrier Replacement Parts
Yukon Gear & Axle offers all of the small differential carrier replacement parts that you need to reassemble your carrier. Oil slingers, thrust washers, shims, baffles, guides, spacers, pins, bearing screw adjusters, and more are available to complete your differential carrier project. These components are available for numerous axle models, such as various GM, Ford, AMC, Dana, and Chrysler applications.
( 27 )
$8.99
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$35.99
Trail-Gear Rock Assault True Width Tacoma Axle Assemblies
Trail-Gear Rock Assault True Width Tacoma axle assemblies offer ground clearance to roll over any terrain. Their exclusive design is built with all-new components and state-of-the-art, 3-D digital imaging to ensure that the housings are 100 percent straight and true. The build of these axle housings delivers increased clearances under the axle tubes and differential, as well as increased strength to handle the stresses of heavy loads. They're available in your choice of bare tubes, models with spring perches installed, or a 3-link ready with a panhard bracket. Climb to new heights with the added clearance and strength provided by Trail-Gear Rock Assault True Width Tacoma axle housing kits. Features: * Forged strong 1035 steel knuckle balls—eliminates closed, bent knuckles * 5/16 in. thick 1020 DOM axle tubes—offset above the housing centerline so the inner axles ride near the bottom of the axle tubes, rather than center * Heavy-duty, press-formed 1/4 in. steel plate center section—shaved to create additional clearance under differential * 1/2 in. plate steel differential mounting surface—assurance that studs cannot pull out * Includes both 30-spline chromoly short and long axle shafts
( 2 )
$1,499.99
Yukon Gear & Axle Crosspins and Shafts
Certain high numeric ratio gear sets require special notched crosspins for proper installation. These Yukon Gear & Axle crosspins and shafts are made for some of the Yukon-designed ring and pinion sets that need aftermarket crosspins and shafts to work with their parts. The differential components are available for more than two dozen axle models, so match your vehicle to the proper direct-fit replacement. They're manufactured from hardened steel or chromoly for maximum durability.
( 10 )
$27.99
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$93.99
Trail-Gear Axle Trusses
Trail-Gear axle trusses weld onto the top of your OEM or Rock Assault axle housing for extra protection against bending during competition or other extreme applications. The flat top design of Trail Gear's axle truss allows for installation of any link brackets that you wish to install. This will not only give you the peace of mind that your rear axle housing will last a lifetime, but also add a sharp, durable look to the axle housing.
( 2 )
$79.99
TransGo Automatic Transmission Pressure Regulator Valves
TransGo Performance offers a variety of automatic transmission rebuild components—including pressure regulator valves for hundreds of applications, such as cars, trucks, and vans from Pontiac, BMW, Chevrolet, GMC, Hummer, Cadillac, Saturn, Oldsmobile, Daewoo, Saab, Isuzu, Buick, Avanti from the 1990s and up. These drop-in replacement valves correct, prevent, and reduce pressure rise shift quality issues. The pressure regulator valves are available individually or in kits with different rebuild parts (see details in Notes). Order the model recommended for your transmission and/or vehicle.
( 1 )
$12.86
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$95.29
TransGo Automatic Transmission Boost Valves
If your transmission isn't performing properly, then you may need one of these TransGo automatic transmission boost valves. They are available in different diameters that provide increased line pressure so that your transmission will work correctly when used under conditions other than what the factory intended. Get the correct pressure with TransGo automatic transmission boost valves and you'll increase your transmission's reliability.
( 29 )
$16.20
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$16.71
TransGo Automatic Transmission Valve Body Repair Kits
TransGo valve body repair kits give you the components needed to restore proper shifts and correct other problems with your automatic transmission. They will help correct cold rough shifts, downshift problems, long shifts, hard or soft shifts and lockup problems. Repair your automatic transmission with TransGo valve body repair kits.
( 9 )
$28.43
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$149.14
USA Standard Gear Spartan Lockers
Spartan lockers are affordable, reliable traction. These USA Standard Gear Spartan lockers are mechanical lockers that fit into a standard differential carrier, replacing the open spider gears. They do not use thrust washers and have a revolutionary spring and pin design to make installation a snap! Spartan lockers feature high-nickel 9310 chromoly drivers and couplers for added strength. Give your vehicle great traction and save some cash. Drop in Spartan lockers for improved traction. They're available for a variety of makes and models spanning more than a half-century.
( 32 )
$255.00
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$852.99
Derale Transmission Pans
Derale Performance transmission pans can double your transmission's life by dropping its temperature 20 to 50 degrees. These pans hold additional fluid and have heat-conducting metal tubes on the bottom. A replacement gasket is included.
( 181 )
$220.49
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$289.37
Summit Racing™ 5-Pinion Planetary Gears
Summit Racing™ 5-pinion planetary gears are drop in upgrades that replace the standard 4-pinion planets. The extra pinion gives your transmission extra torque carrying capacity and extends the life on the geartrain when used for towing or performance.
Not Yet Reviewed
$139.99
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$149.99
Summit Racing™ Motor Mount Bolts
Whether you're dropping in a freshly rebuilt V8, or just replacing worn-out motor mounts, make premium-quality Summit Racing™ motor mount bolts your go-to choice. These hardware sets are available for a range of applications—from small and big block Chevys, to small block Ford Windsors. Each package contains rugged steel hex-head bolts with a protective finish for corrosion resistance, along with a set of flat washers. Install your engine with confidence; it all starts by securing the motor mounts to your engine block with extra-strong specialty bolts from Summit Racing™.
( 11 )
$8.99
On Sale
Belltech Pinion Shims
Belltech pinion shims correct pinion angle when lowering leaf spring equipped vehicles. They come available in several angles to accommodate different drops.
( 41 )
$35.00
$31.50
Sonnax Clutch Hub Shims
Sonnax clutch hub shims allow hub end play adjustment with a mix of various forward clutch components. These 3-shim sets permit you to limit hub end play, which is beneficial when optimizing the high clutch pack stack-up. The Sonnax shims fit between your small wear plate and drum to lift the hub out of the drum--reducing end play between the hub and sun gear flange, while maximizing clutch tooth engagement with the hub splines. This prevents the rear clutch friction disc from dropping off the clutch hub. Reduce and control end play with Sonnax clutch hub shims.
( 2 )
$9.11
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$9.88
Bowler Performance Tru-Shift Throttle Correction Systems
Are you tired of the trial and error method of adjusting your TV cable on your 700-R4 and 200-4R transmission? Bowler Performance Tru-Shift throttle correction systems will solve your problems. These are the easiest and best functioning TV cable adjusting systems available, and they are easy to install. Simply bolt on the supplied bracket and carburetor cam assembly, install the Bowler TV cable, then run the accelerator to wide open throttle. The cable will automatically adjust itself and you're done. With Bowler Performance Tru-Shift systems there is no need to remove the carburetor, adjust cams, drop the transmission pan, or install a pressure gauge to check the pressures, but best of all—there isn't any more guessing. Bowler even includes different throttle cable brackets to cover Lokar, Gennie, GM square, and early round hole styles. Each one attaches neatly to the supplied bracket. Choose the kit designed for your carburetor.
( 4 )
$312.99
