• 6L45
• 6L50
• 6L80
• 6L90

Sonnax vacuum test plate kit seal 104740-VTP-SL is a replacement silicone seal for a worn or damaged original lower valve body seal in vacuum test plate kit 104740-VTP.

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• 6L45
• 6L50
• 6L80
• 6L90

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• 6L45
• 6L50
• 6L80
• 6L90

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• 6L45
• 6L50
• 6L80
• 6L90

Sonnax vacuum test plate kit seal 104740-VTP-SU is a replacement silicone seal for a worn or damaged original upper valve body seal in vacuum test plate kit 104740-VTP.

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• 6L45
• 6L50
• 6L80
• 6L90

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• 6L45
• 6L50
• 6L80
• 6L90

It is often necessary to resurface the pump during overhaul of GM 6L45, 6L50, 6L80 and 6L90 units. After resurfacing, endplay is too great and must be set back to ...Read More

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• 6L45
• 6L50
• 6L80
• 6L90

The pump slide pivot pin in GM 6L45/50/80/90 units is in a high-stress position and wears appreciably under normal conditions. The spring for the pivot pin also ge...Read More

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• 258mm LU (4L60-E, 5L40-E)
• 265mm LU (4T60-E, 4T80-E)
• 4L80-E (Early Single Stator)
• 4L80-E (Late Single Stator)
• 6L80, 6L90 (300mm)
• Converts GM 6L80, 6L90 (300mm), GM 258mm LU (4L60-E, 5L40-E) or GM 265mm LU (4T60-E, 4T80-E) converter cores to a 37-tooth internal spline for use in GM 4L80-E single stator applications.

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• 6L80 (300mm), Single-Plate Performance Converter

Weld-in

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• 6L80, 6L90 (300mm)
• 6L90 (Captive Clutch)

Sonnax aluminum stator cap GM-WA-47 for the turbine side of the stator is a replacement for worn or damaged caps in GM 6L90-later captive clutch converters.

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• 6L80, 6L90 (300mm)
• 6L90 (Captive Clutch)
• Stepped, Chamfered Nose

Sonnax chromoly turbine hub GM-HTCM-56HS with hardened internal spline replaces previously offered GM-HT-56HS.

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• 6L80, 6L90 (258mm), Multi-Plate Performance Converter

Sonnax turbine hub GM-HTCM-688R is a direct replacement for turbine hubs included in performance converter kits listed below.

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• 6L45
• 6L50

GM 6L45 and 6L50 transmissions have aluminum bushings installed at the front and rear of the stator shaft. While aluminum bushings generally have good wear charact...Read More

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• 6L45
• 6L50

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• 6L45
• 6L50

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• 6L45
• 6L50

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• 6L45
• 6L50

OE bushings in GM 6L45 and 6L50 transmissions have a tendency to wear out prematurely due to sub-optimal material composition. This wear can lead to bushing failur...Read More

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• 6L45
• 6L50

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• 6L90

The output planetary assembly in GM 6L90 transmissions has a lube dam, or cover, that directs lube oil flow to the planetary lube feed passages. Over time, the lub...Read More

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• 6L45

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• 4L60-E (300mm), Single-Plate Performance Converter
• 6L80 (300mm), Single-Plate Performance Converter

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• 6L80 (258mm)
• 8L90
• JF010E (RE0F09A)
• JF506E (with sensor ring)
• ZF4HP16
• ZF5HP19 (Single Friction)

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• 10R80
• 258mm (Captive Clutch)
• 280mm LU (4L60-E) “VJCX”
• 6L45/6L50
• 6L80 (258mm)
• 8L45
• 8L90
• 4L60-E (280mm) “VJCX” torque converter

Sonnax offers roller GM-RO-480 required to rebuild the stator clutch assembly for the 4L60-E (280mm) “VJCX” torque converter. 10 Required 52100 Through-hardened bearing grade steel

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• 10R80
• 258mm (Captive Clutch)
• 280mm LU (4L60-E) “VJCX”
• 6L45/6L50
• 6L80 (258mm)
• 8L45
• 8L90

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• 4L60 (700-R4), 4L60-E (298mm), Multi-Plate Performance Converter
• 4L60-E, 4L65-E, 4L75-E (300mm), Multi-Plate Performance Converter
• 4L80-E, 4L85-E, Multi-Plate Performance Converter
• 6L80, 6L90 (258mm), Multi-Plate Performance Converter
• 6L80, 6L90 (265mm), Multi-Plate Performance Converter

Sonnax external spline clutch plate GM-CP-2 with two solid HTE frictions bonded replaces those in related multi-plate performance converter kits referenced below.

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