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GMC Transmission & Drivetrain

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Eaton Detroit Truetrac Differentials

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.

4.78 out of 5 stars ( 501 )

$623.99

$1,279.99

Summit Racing™ Automatic Transmissions

Summit Racing™ Automatic Transmissions combine quality and economy to offer replacement transmissions in many styles and options. These units are remanufactured with all-new clutches, thrust washers, seals, bushings, and high-energy bands, along with other "failure prone" hard parts depending on unit. Other features include a rebuilt front pump, a valve body with shift for street and performance and high-quality seals and gaskets. You get all these impressive upgrades, along with reliable performance and extreme value. All transmissions are Dyno tested before they're shipped. Order the model recommended for your vehicle.

3.41 out of 5 stars ( 61 )

$2,295.99

TCI StreetFighter Transmissions

TCI StreetFighter transmissions are durable enough to withstand the rigors of even the toughest street machines. Equipped with a manual/automatic valve body, most units allow you to manually shift the vehicle into each gear change or, by placing it in the drive position, remain fully automatic. In either mode, you get a race track shift that bangs through the gears and shaves time off of your ETs. When you use the manual gear selection feature, the StreetFighters upshift and downshift right when you move the lever, with no lag or governor override. When you select the normal drive position, they retain positive automatic shifts for the ease of driving you look for in an automatic transmission.

3.56 out of 5 stars ( 144 )

$2,491.95

$4,996.95

On Sale

B&M Tork Master Torque Converters

Tork Master converters are B&M's most affordable performance torque converters. They feature precision pump drive tubes and are pressure tested, fully balanced, and ready to install. The Tork Masters are excellent all-around performance street converters. They are not recommended for big block or supercharged applications.

4.42 out of 5 stars ( 184 )

$549.95


$296.95

$493.95

Yukon Gear & Axle Dura Grip Positraction Carriers

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.

4.36 out of 5 stars ( 137 )

$358.00

$1,719.99

Warn Premium Manual Hubs

Warn's premium manual hubs feature a no-compromise design for the hardcore off-roader or truck owner who will accept nothing less than the industry standard in performance. Their all-metal construction and ZA alloy dial ensure years of reliable functioning. The dial requires a full 9/10 of a turn to ensure positive engagement of the inner drive gear to the clutch ring. To make sure that they stay engaged, Warn premium hubs use a thick internal wave spring and heavy dial detents.

4.63 out of 5 stars ( 196 )

$143.99

$397.99

On Sale

B&M Street and Strip Transmissions

B&M remanufactured Street and Strip transmissions are put together with new gaskets, bushings, seals, thrust washers, high performance friction materials, and gold zinc plated hardware. The front pump is rebuilt to B&M specs and the valve body is recalibrated. They're built for extreme conditions and are perfect replacing a worn transmission, cruising, and racing.

3.29 out of 5 stars ( 14 )

$3,749.95

$4,049.95


$3,373.95

$3,643.95

Summit Racing™ Manual Transmission Bellhousing Kits

Summit Racing™ manual transmission bellhousing kits provide you with our cast CNC-machined bellhousing, plus other essential components. Our bellhousings are designed to help eliminate flexing, true up clutch alignment, and decrease wear on internal transmission components. Included with them in the kits will be a clutch fork, throwout bearing, clutch fork boot, clutch fork pivot ball, and an inspection cover with mounting bolts. Order your kit today.

4.0 out of 5 stars ( 3 )

$245.99

On Sale

B&M StarShifters

B&M automatic StarShifters normally work like standard detent shifters, but by simply pulling the lockout trigger and moving the stick to low, they become full ratchet action shifters for quick gear changes. With a cable-operated mechanism, a universal floor-mount console, NHRA/IHRA-approved reverse lockout, a neutral safety switch, and a polished aluminum T-handle, the StarShifters are at home on the street or the track.

4.63 out of 5 stars ( 156 )

$340.95


$306.85

Summit Racing™ OE Replacement Flywheels

Summit Racing™ OE replacement flywheels offer a great fit and an economical price. They are manufactured from ductile iron and offer original fit and function. Replace your old flywheels with Summit Racing™ OE parts.

4.31 out of 5 stars ( 68 )

$128.99

$148.99

On Sale

B&M Truck Megashifters

B&M truck shifters feature the classic Megashifter design, in a configuration that will fit your light truck! All of the things that you expect in a B&M shifter are right here and ready to install. The Truck Megashifters include a taller base and an adjustable floor mount bracket for proper installation.

4.72 out of 5 stars ( 57 )

$527.95


$474.95

TransGo Performance Shift Kits

TransGo's Performance shift kits give you the hard-launching, tire-blazing shifts you want, after just a few hours' work with basic hand tools. TransGo even has kits for computer-controlled, 4-speed automatics. Their performance shift kits can be installed with the transmission in the vehicle and they come with complete instructions. Some kits even include a step-by-step video to walk you through the installation process.

4.68 out of 5 stars ( 507 )

$29.57

$321.43

RAM Billet Steel Flywheels

Cast flywheels are not explosion-proof and can be dangerous when used in high performance applications at higher rpm. RAM billet steel flywheels are recommended as replacements for factory-cast flywheels in high performance and racing vehicles. Made in America and produced in-house, all RAM flywheels are computer balanced within a 1/2 oz., surface ground (which results an optimum mating surface), and are ready to run out of the box. They're better for launching heavier drag race cars and provide better drivability in street vehicles. SFI-approved, RAM billet steel flywheels are CNC-machined from certified materials. Order the model recommended for your year/make and engine application. Technical note: As they spin, heavy flywheels store more energy than lighter ones. Engine and gearing combinations that require more power or inertia to make the car launch without bogging the motor need heavier flywheels. However, heavier flywheels accelerate slower. Lighter flywheels create less inertia at launch, but accelerate quicker through the gears. When choosing a flywheel, you must consider the car's weight, operating rpm of the engine, and, most importantly, the gearing. Insufficient gearing will cause an engine with too light of a flywheel to "bog" on launch.

4.71 out of 5 stars ( 136 )

$259.00

$294.00

TCI Maximizer 4x4 Transmissions

Bring out the performance of your 4x4 with these Maximizer transmissions from the folks at TCI. Four-wheel drive vehicles are tough on automatics, especially with the addition of a lift kit and larger tires. Maximizer transmissions are built with that in mind. Each one is assembled with the strongest components available and designed to provide crisp shifts, time and time again. They give you all of that, and they'll deliver long and dependable service, too.

3.32 out of 5 stars ( 31 )

$2,122.95

$4,575.95

On Sale

B&M Pro Ratchet Shifters

B&M Pro Ratchet automatic shifters have the style and quality for professional racing, along with easy ratchet action. The Pro Ratchets have an NHRA/IHRA-approved reverse lockout that can be operated with one hand, a neutral safety switch, and a backup light switch. They work with both forward and reverse pattern valve bodies and most 3 and 4-speed transmissions. Additional installation kit required for some transmission models. Compatible with CO2 and electric shifters, these shifters include a brushed aluminum cover and a 5 ft. super-duty race cable.

4.73 out of 5 stars ( 86 )

$449.95

$487.95


$403.95

$438.95

Lokar Midnight Series Flexible Braided Stainless Transmission Dipsticks

Lokar's Midnight Series flexible braided stainless transmission dipsticks feature a heat-resistant PTFE rod with a black braided stainless steel cover. The flexible inner rod is stamped with appropriate trans-fluid levels, and the outer housing has a slim design that allows for mounting them inside of the headers. They're available in both firewall-mount and trans-mount styles, and a funnel adapter is included for assistance with filling. Order the length recommended for your transmission application.

4.65 out of 5 stars ( 80 )

$151.95

$176.95

McLeod Steel Flywheels

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.

4.42 out of 5 stars ( 103 )

$325.00

$429.00

On Sale

B&M Unimatic Shifters

Do you want to move a column shifter to the floor of your project car and still retain that performance flavor? B&M Unimatic shifters are just the ticket! They look identical to a manual 4-speed shifter and, because of their cable-operated design, they can be easily installed. Like the B&M top line shifters, they include a neutral safety switch and a 5 ft. cable and a black plastic T-handle.

4.3 out of 5 stars ( 73 )

$299.95


$269.95

On Sale

LuK Clutch TorCon Torque Converters

Replacing older OE converters can be a challenge, often compelling customers to settle for makeshift solutions. You can remedy such an issue by choosing a LuK Clutch TorCon torque converter to restore smooth shifting to your automatic transmission. LuK's selection of converters provide the correct fit and function, covering a wide range of vehicles, assuring you will be able to find the proper unit for your vehicle.

5.0 out of 5 stars ( 2 )

$349.99

$491.99


$314.99

$442.79

Summit Racing™ High Performance Automatic Transmission Rebuild Kits

Summit Racing™ high performance automatic transmission rebuild kits feature the necessary parts to get your transmission working more efficiently than ever. Available for a variety of transmissions, the Summit Racing™ high performance automatic transmission rebuild kits are an excellent choice for increased durability and performance. Kits include: * Alto Red clutches * Kolene coated or Premium Steels * High performance band * High performance transmission filter * Bushing kit * Oil seals * Gaskets * Lip seals

4.19 out of 5 stars ( 64 )

$240.99

$409.99

Centerforce Dual Friction Clutch Kits

Centerforce dual friction clutches generate up to a 90 percent increase in holding capacity over stock systems. These clutch-and-disc sets are designed for engines producing high horsepower and big torque outputs. Perfect for 4WD vehicles, all Centerforce clutch systems provide smooth engagement and light pedal pressure without compromising high performance.

4.66 out of 5 stars ( 306 )

$335.95

$1,259.95

Winters Sidewinder Standard Automatic Shifters

The durable, jam-proof design of Winters Sidewinder standard automatic shifters enables you to slam gears--while the fail-safe gate layout makes it impossible to accidentally shift into reverse. The units are available in standard forward or reverse shift patterns and include linkage hardware and 5 ft. shifter cable. Winters shifters are ready to install on various GM, Ford, and Chrysler models equipped with automatic transmissions.

4.72 out of 5 stars ( 166 )

$267.99

$308.99

Richmond Gear Complete Ring and Pinion Installation Kits

Richmond Gear complete ring and pinion installation kits include Grade 8 ring gear bolts, bearings, seals, shims, marking compound, thread-locking compound, and silicone sealer. To ensure proper fitment, order the kit designed for your make/model application.

4.13 out of 5 stars ( 212 )

$125.99

$780.99

On Sale

B&M Sport Shifters

These B&M automatic Sport shifters offer good looks and performance. Features include: * Black T-handle * Chrome steel stick and plate * Rubber boot * Black plastic console; can be trimmed to custom-fit any floor * Neutral safety switch * Backup light switch * Lighted gear indicator

4.19 out of 5 stars ( 48 )

$362.95


$326.65

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