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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
( 6 )
$166.99
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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.
( 7 )
$125.99
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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
( 14 )
$109.99
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$113.99
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These TCI transmission Master Racing overhaul kits are designed for racers who maintain their own transmissions. They contain parts that are required when freshening up an existing competition transmission. You'll receive the high performance filter, clutches, steels, seals, gaskets, and bushings normally replaced during a rebuild. In addition, kits for late model GM overdrive transmissions also include a new performance band.
( 58 )
$256.95
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Sonnax flanged yokes will complete your driveshaft connection. These high performance 6061-T6 aluminum parts are precision-machined to be stronger than the original cast steel yokes, as well as being lighter in weight. Sonnax builds these yokes for exceptional balance and superior craftsmanship, for a show-quality driveline.
( 23 )
$101.42
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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.
( 4 )
$247.99
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ACDelco Gold wheel bearing and hub assemblies are the high-quality alternative to original equipment parts. These unitized wheel bearings contain dual ball or tapered roller bearing elements sealed with a lifetime lubrication. ACDelco Gold replacement parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. The assemblies are available in dozens of options for fitment on countless vehicles from the 1970s and up.
( 5 )
$203.99
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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.
( 12 )
$105.99
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ACDelco Silver wheel bearing and hub assemblies are quality high-value options available for most makes and models, and backed by General Motors. They offer the fit, form and function of premium aftermarket brakes at a more economical price, as well as dependability and performance without sacrificing important features and benefits. You can count on the ACDelco Silver Series to deliver everything you need and want in a replacement, including peace of mind.
( 8 )
$127.99
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$177.99
Summit Bucks
ACDelco GM Genuine Parts wheel bearing and hub assemblies support the vehicle while allowing the wheel to rotate. They are a GM recommended replacement for your vehicle's original component. These GM Genuine Parts wheel bearing and hub assemblies have been manufactured to provide you with the performance, durability, and service life you expect from General Motors.
( 13 )
$189.99
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$215.99
Summit Bucks
Is your shifter cable worn or damaged? ACDelco GM Genuine Parts shifter cables provide reliable shifting performance. Manufactured from top-quality materials, these shifter cables fit your stock shifter assembly and install in the stock location. They are a GM recommended replacement for your vehicle's original component and are manufactured to offer you the same performance, durability, and service life you expect from General Motors.
( 36 )
$102.99
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$140.99
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ACDelco GM Genuine Parts CV joint boots protect your CV joints from destructive dirt and moisture. A common cause of CV joint failure is cracks in the CV boot. When the boot is cracked, it allows dirt and grit to mix in with the grease and wear down the parts of the joint. CV boots should be replaced as soon as cracking is visible in their rubber folds. These factory-recommended replacements will provide the same performance, durability, and service life you expect from General Motors. Order the boots designed for your application.
Not Yet Reviewed
$110.99
Summit Bucks
ACDelco GM Genuine Parts driveshaft slip yokes are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Choose parts with the correct fit for optimal performance in your vehicle from ACDelco GM Genuine Parts.
( 2 )
$241.99
Summit Bucks
ACDelco Gold universal joints help transmit power from the transmission to the rear or front differential through the driveshaft or prop shaft. They allow for vertical movement of the shaft during its rotation. ACDelco Gold universal joints are premium aftermarket replacement components, manufactured to meet or exceed your expectations for fit and performance. Order the model recommended for your vehicle.
( 1 )
$127.99
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$162.99
Summit Bucks
Clearance
Keep your FWD/AWD front axles perfectly aligned with ACDelco replacement axle housings. Cracked or warped housings can lead to excessive transmission or wheel bearing wear, as well as damage the axle splines. Order the model recommended for your application.
( 1 )
$304.99
$214.50
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