$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT

$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT

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GMC Transmissions

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Results 1 - 24 of 70

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ACDelco GM Genuine Parts Flexplates

ACDelco GM Genuine Parts flexplates are designed, engineered, and tested to rigorous standards and backed by General Motors. They're true OE parts that will replace your originals with the same fit and performance, and are updated to integrate new materials and technologies. Order the flexplate model recommended for your vehicle.

5.0 out of 5 stars ( 8 )

$70.99

$126.99

Summit Bucks

Sonnax Shift Improver Performance Packs

Sonnax shift improver performance packs combine innovative heavy-duty performance calibration for firmer shifts under load without sacrificing low-speed drivability. The precision components in these kits upgrade your transmission for maximum achievement and durability by recalibrating pressures, recalibrating shift accumulation, and including improved parts for areas that commonly wear. They are suitable for any heavy-duty application and are a critical foundation for other upgrades when modifying the transmission for high performance use. Sonnax shift improver performance packs additional facts and features: * Shorter shifts, which get progressively firmer with load * Faster pressure increase and higher overall pressure for greater clutch/band holding power * Three ultra-reliable, patented, billet pinless accumulator pistons * Unique 1-2 accumulator spring combination for shifts with character * Improved high rpm pressure * Third accumulator valve gets the 2-3 right the first time, every time * Consistent results, no guessing on calibration * Prevents worn accumulators and separator plate * Optional TCC on-off conversion prevents excess TCC pressure

5.0 out of 5 stars ( 6 )

$166.99

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ACDelco Transmission Bellhousings

ACDelco offers transmission bellhousings for a wide range of vehicles from the 1990s and up. Built from aluminum, these GM-recommended replacements deliver the quality and durability of original equipment, plus a factory fit and solid performance. The bellhousings are available for nearly two dozen transmission models. Order the unit designed for your application.

3.63 out of 5 stars ( 8 )

$274.99

$628.99

Summit Bucks

ACDelco GM Genuine Parts Automatic Transmission Pans

The factory-original fit and lasting function of ACDelco Gm Genuine Parts automatic transmission pans provide a perfect repair without breaking your budget. They are designed, engineered, and tested to rigorous standards, and are backed by General Motors. Features: * Built with premium materials for prolonged service * Precisely engineered to OE specifications * Trouble-free installation and function ensured by rigorous testing procedures * Designed for direct compatibility

4.43 out of 5 stars ( 14 )

$25.99

$113.99

Summit Bucks

Sonnax Automatic Transmission Governors

A bad governor will result in a sudden loss of upshift. Sonnax automatic transmission governors will restore proper function on select automatic transmissions. Their governor gears are excellent replacement components and they are made of premium materials to provide a precise fit with OE quality and function for long-lasting performance.

4.4 out of 5 stars ( 20 )

$145.67

$152.56

Summit Bucks

ACDelco Gold Automatic Transmission Fluid Filters

ACDelco Gold automatic transmission fluid filters can help to ensure the reliability and performance of your automatic transmission. These filters trap impurities that may be present in the fluid before they get pumped through to the moving components of your transmission, thus avoiding damage. On-time maintenance can extend your transmission's life and keep it operating efficiently. Perform service with ACDelco Gold automatic transmission fluid filters.

4.47 out of 5 stars ( 49 )

$4.50

$58.99

Summit Bucks

Sonnax Zip Kits

Sonnax Zip kits are engineered to cure common problems associated with today's automatic transmissions. Sonnax Zip kits eliminate: * Burnt clutches * Line pressure instability * Loss of fuel economy * No line rise * Pressure loss * Shift concerns * TCC apply and release concerns * TCC codes * Pressure switch codes

4.82 out of 5 stars ( 11 )

$139.21

Summit Bucks

ACDelco Pilot Bearings and Bushings

ACDelco transmission pilot bearings and bushings deliver the quality, durability, and reliability you expect. They facilitate less friction and longer life from the clutch assembly in your ride. These replacements are available in a variety of sizes, styles, and materials. Order the model recommended for your application.

4.72 out of 5 stars ( 40 )

$13.99

$18.99

Summit Bucks

ACDelco GM Genuine Parts Automatic Transmission Clutch Housings

ACDelco GM Genuine Parts automatic transmission clutch housings are a factory-recommended replacement component. They will provide the same performance, durability, and service life you expect from General Motors. Order the clutch housing designed for your vehicle application.

5.0 out of 5 stars ( 4 )

$247.99

$410.99

Summit Bucks

Sonnax Signal Accumulator Pistons

GM 8L45 and 8L90 transmissions often suffer burnt clutches, shift concerns, low line pressure and/or converter apply complaints—due to excess wear in the signal accumulator piston bores in the control solenoid valve body casting. This wear allows valuable VFS signal pressure to exhaust, preventing proper shift control, line pressure regulation, and/or converter clutch apply. Sonnax drop-in signal accumulator piston kits allow bores to be reconditioned quickly and easily with no reaming required. The hydraulic integrity of the VFS signal pressure circuits are re-established, and future wear prevented with positive sealing and wear-resistant components. Features include: * Hardcoat anodized aluminum piston combats premature wear * Annular grooves to reduce wear rate * Highly wear-resistant sleeve to prevent future wear * Positive sealing O-ringed plug prevents leakage in already worn bores * Mating spring to re-establish OE dampening action * Drop-in Zip Valve parts install quickly and easily * Available for a variety of Chevrolet, GMC, and Cadillac transmission applications Kit contents: -- Sleeves (4) -- Pistons (4) -- Springs (4) -- O-rings (6), 2 extra -- End plugs (4)

5.0 out of 5 stars ( 1 )

$47.48

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ACDelco GM Genuine Parts Flywheel and Flexplate Spacers

ACDelco GM Genuine Parts flywheel and flexplate spacers are designed, engineered, and tested to rigorous standards and backed by General Motors. These true OE replacements will help to reposition the flywheel, allowing for appropriate clutch pedal height and assembly location. They provide proper engagement and disengagement of the clutch during vehicle operation, aiding in optimal shifting. The spacers offer factory fit and performance in specific GM vehicles.

4.0 out of 5 stars ( 2 )

$49.99

Summit Bucks

Sonnax Thrust Bearings

Sonnax thrust bearings are replacements for your worn automatic transmission bearings to aid in smooth operation and noise reduction. The bearings act as a guide to help limit any axial movement which can hinder performance. Manufactured to exceed OE specifications for superior quality even under extreme conditions, order the Sonnax thrust bearings best suited for your application.

5.0 out of 5 stars ( 4 )

$11.20

$18.47

Summit Bucks

ACDelco New Torque Converters

ACDelco new torque converters are GM OE replacements that offer the same performance, durability, and service life you've come to expect. With quality steel housings and internal components, ACDelco torque converters are sure to deliver the performance and fit needed for your vehicle.

5.0 out of 5 stars ( 1 )

$236.50

$661.99

Summit Bucks

ACDelco GM Genuine Parts Automatic Transmission Filters

ACDelco GM Genuine Parts automatic transmission filters help keep abrasive particles from damaging transmission components. They provide optimal fluid flow to and from your transmission to eliminate sticking while you're trying to shift. These OE replacements are designed, engineered, and tested to rigorous standards—backed by General Motors. Order the model recommended for your vehicle.

5.0 out of 5 stars ( 9 )

$21.99

Summit Bucks

ACDelco GM Genuine Parts Transmission Pan Gaskets

ACDelco GM Genuine Parts transmission pan gaskets renew leak-free performance. Sealing the interface between the oil pan and the transmission housing, these gaskets utilize premium materials—like cork, elastomer, or silicone/steel—to provide the appropriate fit and function. For your GM vehicle, choose ACDelco GM Genuine Parts transmission pan gaskets to restore the best performance, durability, and service life.

4.35 out of 5 stars ( 17 )

$29.99

$32.99

Summit Bucks

ACDelco Automatic Transmission Tailhousings

ACDelco automatic transmission tailhousings fit your vehicle to deliver the same OE performance, durability, and service life as their original counterparts. They provide factory form for an easier install and a repair that stays on budget. Each of these transmission case rear extensions includes the correct seal for a tight connection. Dozens of models are available for vehicles from the 1990s and up. Order the tailhousing recommended for your application.

4.83 out of 5 stars ( 12 )

$107.99

$156.99

Summit Bucks

Sonnax Pinless Accumulator Piston Kits

Wear at the piston pin bore surface can result in poor shift quality and burnt clutches and bands. Sonnax pinless accumulator piston kits prevent pin bore leakage. They're also longer to stabilize the piston and prevent piston cocking. They feature dual seals to stabilize and completely seal the bore, and steel balls to plug the existing pin bore. Fluid loss through the piston pin bore will no longer be an issue when you invest in Sonnax piston kits.

5.0 out of 5 stars ( 18 )

$8.94

$10.86

Summit Bucks

ACDelco Automatic Transmission Shift Solenoid Valves

ACDelco automatic transmission shift solenoid valves are GM-recommended replacement components. Keeping your transmission shifting and operating efficiently is crucial to the overall life of vehicle. These original equipment solenoids will provide the same performance, durability, and service life you can expect from a General Motors direct part.

5.0 out of 5 stars ( 5 )

$25.99

Summit Bucks

ACDelco GM Genuine Parts Clutch Release Bearings

ACDelco GM Genuine Parts clutch release bearings disengage the clutch by pressing on the pressure plate diaphragm spring or release lever. These bearings are attached to a clutch release fork that is hydraulically or mechanically operated by the diver's clutch pedal. They are manufactured to provide the same performance, durability, and service life you expect from General Motors.

5.0 out of 5 stars ( 1 )

$53.99

Summit Bucks

ACDelco GM Genuine Parts Automatic Transmission Dipstick Tubes

The factory-original fit and lasting function of ACDelco GM Genuine Parts automatic transmission dipstick tubes are the ingredients for the perfect repair without breaking your budget. They are designed, engineered, and tested to rigorous standards, and are backed by General Motors. Features: * Built with premium materials for prolonged service * Precisely engineered to OE specifications * Trouble-free installation and function ensured by rigorous testing procedures * Designed for direct compatibility

4.8 out of 5 stars ( 5 )

$47.99

$48.99

Summit Bucks

ACDelco GM Genuine Parts Automatic Transmission Clutch Friction Plates

ACDelco GM Genuine Parts automatic transmission clutch friction plates are factory-recommended replacement components. They will provide the same performance, durability, and service life you expect from General Motors. Order the friction plates designed for your transmission application.

Not Yet Reviewed

$88.99

Summit Bucks

ACDelco Transmission Fluid Dipsticks

ACDelco transmission fluid dipsticks are factory-recommended replacement parts for your vehicle's original component. They're manufactured to GM OE-specifications for fit, form, and function for one or more of the following vehicle systems: automatic transmission/transaxle, and/or manual drivetrain and axles. These OE dipsticks will provide the same performance, durability, and service life you expect from General Motors. They're available in nearly two dozen configurations; order the model recommended for your application.

4.83 out of 5 stars ( 6 )

$24.99

$71.99

Summit Bucks

ACDelco Transmission Solenoids

ACDelco transmission solenoids help restore overall performance with the proper fit, form, and function for your vehicle. They feature high-quality materials and strict design requirements that match OE specifications—critical to ensuring an easy installation and dependable drivetrain operation. Choose the replacement transmission solenoids designed for your application so you and your vehicle can go the distance!

5.0 out of 5 stars ( 5 )

$37.99

$45.99

Summit Bucks

ACDelco GM Genuine Parts Automatic Transmission Oil Pump Rotors

ACDelco GM Genuine Parts automatic transmission oil pump rotors are manufactured to be an exact replacement for your vehicle. Genuine OE parts are recommended in order to deliver peace of mind that the fit, form, and function are of the highest standards. Order the rotor kit model designed for your application.

Not Yet Reviewed

$64.99

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