Availability
Summit Bucks
Sonnax valve body check balls are lightweight orbs that seal better. Manufactured from tough, wear-resistant imidized plastic, these check balls conform to the separator plate ball seats, creating a good seal. Steel balls are heavy and hard, causing wear on your separator plate seats from repeated high impact, while elastomer rubber ones wear easily, reducing their size and sealing ability. For excellent results from your valve bodies, service them with Sonnax imidized check balls.
( 12 )
$5.67
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$6.18
Summit Bucks
Worn babbit pump bushings in your GM Powerglide, 350, 400, or Allison AT540 transmission can allow the converter hub and inner pump gear to move off-center, thus causing damage to pump gears and the pump housing crescent. You can replace the worn originals with automatic transmission oil pump bushings from Sonnax. These direct replacements have tighter tolerances for improved fit over OE units, and they're lined with highly wear-resistant PTFE to help maximize the life of the older style and increasingly rare pumps. Order the bushings recommended for your application.
( 2 )
$3.84
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$7.95
Summit Bucks
Sonnax governor gear kits include nails and a roll pin. A common failure point of your governor is the gear. When you need to replace it, Sonnax governor gear kits will restore timely shifts of your automatic transmission.
( 17 )
$4.53
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$5.22
Summit Bucks
ACDelco transmission fluid dipstick seals fit perfectly around the base to help prevent leaks. Designed to provide OE performance, the seals are offered in several styles for factory fitment on thousands of vehicles. Guard against unwanted leaks; replace dirty, aging, or damaged originals with a new transmission fluid dipstick seal from ACDelco.
( 5 )
$3.99
Summit Bucks
ACDelco offers a comprehensive line of oil seals to fit most repair jobs you're working on. These premium aftermarket seals are made from quality materials, and are available to fit a wide range of vehicles on the road today. When you're in need of an oil seal, choose ACDelco for quality, value, and reliable performance. Order the oil seal to fit your application.
Not Yet Reviewed
$6.99
Summit Bucks
ACDelco GM Genuine Parts flywheel bolts are designed, engineered, and tested to rigorous standards, and are backed by General Motors. Providing secure fastening of components, these bolts are the true OE parts installed during the production or validated by General Motors for GM vehicles. Get the correct fit and function, along with a hassle-free install utilizing ACDelco GM Genuine Parts flywheel bolts.
Not Yet Reviewed
$4.99
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$9.99
Summit Bucks
Sonnax retaining rings are stamped from high-strength, roll-tempered steel, providing additional muscle to resist deflection better than mild steel OE retainers. Successful ET racing requires consistent transbrake release; that usually means utilizing stiffer springs—which leads to the need for stronger spring retainers that won't be deflected. Sonnax no-flex reverse spring retainers are small solutions to faster transbrake response times.
( 3 )
$3.45
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$10.99
Summit Bucks
Sonnax servo release check valve kits are unique solutions. Since the GM 4L60 (700-R4) and 4L60-E Series transmissions were introduced, they have had inadequate metering of 2nd gear band servo release oil resulting in 3-4 clutch pack failure. The 3-4 clutch pack and 2nd gear band are just not properly synchronized. Sonnax servo release check valve kits combine an orifice with a ball check valve to resolve these issues and successfully extend the life of 3-4 clutches, and improve the 2-3 shift feel. Other benefits: * Provides sufficient exhaust so that 3-2 downshifts are smooth * Calibrates 3-4 clutch feed orifice without creating shift concerns
( 4 )
$10.60
Summit Bucks
Sonnax 3rd accumulator check ball and seat sets prevent circuit leaks, stop 3-2/2-3 timing issues, and prolongs the life of the 3-4 clutch. Wear or debris can prevent the ball and seat from correctly sealing the 3-4 apply circuit. Sonnax sets will solve the sealing problems for improved performance.
( 4 )
$9.12
Summit Bucks
ACDelco flywheel housing inspection covers are original equipment replacements for your GM vehicle. They are designed to meet or exceed factory specs, which means that the fit and function will be the same as the worn or damaged cover you are replacing. Order the model tailored for your vehicle application.
( 4 )
$7.99
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$9.99
Summit Bucks
Sonnax sun gear bushings will greatly benefit your automatic transmission rebuild. These high-quality bronze and bi-metal wedding band style components are direct OE replacements that help restore the alignment between the front sun gear and input shaft. Order the bushings designed for fitment with your transmission application.
( 4 )
$4.65
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$10.47
Summit Bucks
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.
( 17 )
$8.94
Summit Bucks
ACDelco GM Genuine Parts transmission vent hose and tubes relieve internal air pressure fluctuations caused by the heating and cooling of the transmission and help to keep out dirt. They are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These true OE parts will provide the same fit and performance as the originals they are replacing.
( 5 )
$2.99
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$9.99
Summit Bucks
Restore proper shift feel with Sonnax accumulator springs. The replacement piston release springs have the identical performance specifications as the purple OE accumulator springs but are made of high-strength material to ensure lasting spring life and reduce spring relaxation. Order the spring set designed for compatibility with your automatic transmission make and type.
( 6 )
$4.62
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$9.90
Summit Bucks
ACDelco GM Genuine Parts automatic transmission bearings and races are meticulously 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 is of the highest standards. Get the factory-style components you need from the same source as General Motors with ACDelco. Order the bearings designed for your application.
( 2 )
$5.99
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$10.99
Summit Bucks
OE rear stator support bushings have a tendency to wear-out prematurely due to sub-optimal material composition. This wear can lead to bushing failure, loss of correct pressure to the E-clutch, and gear ratio or solenoid codes. Sonnax rear stator support bushings have an upgraded material composition to restore worry-free operation, superior wear characteristics, and eliminate premature deterioration.
( 2 )
$7.16
Summit Bucks
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 )
$8.09
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$8.32
Summit Bucks
Properly reducing your transmission endplay to avoid flare, slip, or both requires the use of shims. Sonnax rear reaction carrier support shims are available in a variety of sizes for multiple interior locations to provide you with the ability to reduce rear unit endplay. Tighten things up to proper specifications with the set of Sonnax rear reaction carrier support shims recommended for your transmission application.
Not Yet Reviewed
$7.61
Summit Bucks
Sonnax return springs are available in a variety of styles to assist in your automatic transmission rebuild. Replacement part types include high clutch return springs, pump slide springs, detent springs, reverse clutch return springs, and more. They're machined from quality materials for long-lasting performance, and can be ordered individually or in larger quantities. Select the springs required for your specific transmission application.
( 4 )
$3.38
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$10.00
Summit Bucks
ACDelco offers automatic transmission shift shaft seals for thousands of vehicles from the 1980s and up. These economical steel/rubber replacements are available in different styles for compatibility with over 80 transmission models. Ensure a quality fit and factory-style performance; order the seal recommended for your application.
Not Yet Reviewed
$5.99
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$6.99
Summit Bucks
OE front stator support bushings in automatic transmissions tend to wear-out prematurely due to their sub-optimal material composition. Replacement front stator support bushings from Sonnax are made with upgraded materials designed to outperform OE bushings—and provide superior wear characteristics to eliminate early deterioration. Restore critical clearances and resist untimely wear with these quality replacement front stator support bushings from Sonnax. Important note: In some cases it may be necessary to hone the bushing I.D. slightly for proper fit due to stator shaft variations.
( 1 )
$6.37
Summit Bucks
Sonnax front endplay shims help solve the issue of too much front endplay. Whether it's due to various components wearing over time or the direct result of modifications—front endplay that has strayed from precise specifications can lead to costly repairs and/or replacements. Tighten things up to proper specifications with the set of Sonnax front endplay shims recommended for your transmission application.
Not Yet Reviewed
$6.12
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$7.39
Summit Bucks
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.
( 4 )
$5.99
Summit Bucks
If your GM transmission is showing wear of the bore plug in the forward and reverse abuse valve bores that can allow valuable oil pressure to exhaust, Sonnax forward and reverse abuse bore plugs are the solution. They feature a drop-in design with an increased diameter that restores proper clearance in the valve body and no tools are required for installation. These plugs are used in two locations in the valve body: separating the forward abuse and low overrun valves and separating the reverse abuse and 3-2 downshift valves. Put an end to unnecessary oil loss with Sonnax forward & reverse abuse bore plugs. These products are designed to help resolve: * Delayed reverse * Burned 3-4 clutch and bind-up * Burnt low/reverse clutch * Burned 2-4 band
( 1 )
$8.34
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