• 258mm LU (4L60-E, 5L40-E)

Sonnax offers GM-O-13 piston seal, a direct OE replacement for GM 258mm (5L40-E, 4T65-E) and GM 300mm (4L60-E) applications. 

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• 4L60
• 4L60-E
• 4L65-E
• 4L70-E
• '88-Later

Sonnax offers this genuine AC Delco 3-4 clutch boost spring and retainer assembly for the 4L60 (700-R4), 4L60-E, and 4L65-E.

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• 280mm LU (4L60-E) “VJCX”

Sonnax impeller hub GM-90-76G offers another optional length for rebuilding GM 280mm (4L60-E) “VJCX” converters, which are experiencing higher-than-normal pump rot...Read More

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• 4L60
• 4L60-E
• 4L65-E
• 4L70-E

Sonnax clip 77754-08 for GM 4L60, 4L60-E, 4L65-E and 4L70-E transmissions is a hairpin-style valve body retainer that replaces lost or damaged OE components.

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• 4L30-E
• 4R70E
• 4R70W
• 4R75E
• 4R75W
• AOD
• AODE
• TH180
• TH180C (3L30)

Severe wear of the servo apply pin bore due to continuous pin oscillation can result in burned clutches, shift complaints and destroyed cases. Sonnax servo pin bor...Read More

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• 4L30-E
• 4R70E
• 4R70W
• 4R75E
• 4R75W
• AOD
• AODE
• TH180
• TH180C (3L30)

Tool Kit for 76890-24K

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• 280mm LU (4L60-E) “VJCX”

The three lugs welded to the OE stamped steel cover in GM 280mm LU (4L60-E) “VJCX” converters are prone to flexing and cracking. Made from a fully machined forging...Read More

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• 4L60
• 4L60-E
• 4L65-E
• 4L70-E
• 4-Pinion rear planetary

Sonnax round washer 77731-04 is a direct replacement for worn or damaged OE washers in four-pinion rear planetary assemblies in listed GM transmissions. The Sonnax...Read More

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• 4L60-E
• 4L65-E
• 4L70-E
• 280mm or 300mm Converter, reluctor style, '04-later.

Sonnax stator support shaft assembly 77918S-09K in GM 4L60-E, 4L65-E and 4L70-E transmissions eliminates sleeve rotation by securing the sleeve in place with Locti...Read More

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• 4L60-E
• 4L65-E
• 4L70-E
• 298mm Converter, reluctor style

Sonnax stator support shaft assembly 77918S-08K for GM 4L60-E, 4L65-E and 4L70-E transmissions eliminates sleeve rotation by securing the sleeve in place with Loct...Read More

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• 4L60-E
• 4L65-E
• 4L70-E

Sonnax now offers a specially designed Torx® Plus bit 77000-HBK for removing 4L60-E bell housing bolts. The bit has a tighter fit with the drive head of the bolt. ...Read More

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• 4L60-E
• 4L65-E
• 4L70-E

This high-quality, high performance pressure regulator spring 77917-10 from Sonnax fits GM 4L60-E, 4L65-E and 4L70-E transmissions. The spring increases line press...Read More

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• 4L60
• 4L60-E
• 4L65-E
• 4L70-E

Sonnax offers accumulator spring 74926 for use in the 1-2 or 3-4 accumulator of GM 4L60 and 4L60-E series transmissions. The Sonnax spring has identical performanc...Read More

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• 4L60-E
• 4L65-E
• Early style, .490" dia., increased ratio, factory style

GM 4L60-E and 4L65-E transmissions frequently have poor line rise, which can result in 3-4 clutch, 2-4 band failure or poor shift quality. The duty cycle of the EP...Read More

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• 4L60-E
• 4L65-E
• Early style, .470" dia., OE ratio, O-ring style

GM 4L60-E and 4L65-E transmissions frequently have poor line rise, which can result in 3-4 clutch, 2-4 band failure or poor shift quality. The duty cycle of the EP...Read More

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• 4L60-E
• 4L65-E
• Early style, .470" dia., OE ratio, factory style

GM 4L60-E and 4L65-E transmissions frequently have poor line rise, which can result in 3-4 clutch, 2-4 band failure or poor shift quality. The duty cycle of the EP...Read More

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• 4L60-E
• 4L65-E
• Early style, .490" dia., increased ratio, O-ring style

GM 4L60-E and 4L65-E transmissions frequently have poor line rise, which can result in 3-4 clutch, 2-4 band failure or poor shift quality. The duty cycle of the EP...Read More

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• 4L60-E
• 4L65-E
• 4L70-E
• For use in '96-later on/ff style 3-2 control valve bodies. It will not work in '93–'95 PWM style 3-2 control valve bodies.

The 3-2 control valve spring in late-model GM 4L60-E, 4L65-E and 4L70-E valve bodies often breaks, and can cause a 3-2 bind and/or 2-4 band to overheat. This sprin...Read More

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• 4L60-E
• 4L65-E
• 4L70-E

In GM 4L60-E, 4L65-E abd 4L70-E units, wear at the shift valve spools and bore lands causes loss of critical hydraulic pressure which, depending on the wear locati...Read More

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• 4L60-E
• 4L65-E
• 4L70-E
• 280mm or 300mm Converter, non-reluctor style. '99-'04.

Sonnax stator support shaft assembly 77918S-1K for GM 4L60-E, 4L65-E and 4L70-E transmissions eliminates sleeve rotation by mechanically fastening the sleeve in pl...Read More

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• 4L60-E
• 4L65-E
• 4L70-E
• Fits two locations

In GM 4L60-E, 4L65-E and 4L70-E units, the hammering effect of the 3-4 relay and/or 3-4 shift valves can cause the end plugs to wear, resulting in loss of 4th sign...Read More

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