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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
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.
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.
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
Sonnax turbine hub GM-HTCM-688R is a direct replacement for turbine hubs included in performance converter kits listed below.
Sonnax pilot GM-PI-21 comes standard in the following 6L80-series Sonnax performance converter kits: GM-RK-685, GM-RK-685WC, GM-RK-688, GM-RK-688WC. The pilot a...Read More
Sonnax mechanical diode GM-MD-6-2 for GM 6L80 and 6L90 converters offers much greater strength than existing roller clutches and “dog bone” style sprags. This diod...Read More
The output planetary assembly in GM 6L80 transmissions has a lube dam, or cover, that directs lube oil flow to the planetary lube feed passages. Over time, the lub...Read More
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
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
Sonnax outer stator race GM-R-15 is a drop-in replacement for the GM 4L60-E (300mm) and 6L80 converters. GM-R-15 and Sonnax conversion spacer GMBW-WS-40 can be ...Read More
The ideal upgrade for performance vehicles with the GM 6L80 transmission, Sonnax extreme duty 4-5-6 clutch hub and intermediate shaft 104680-45 guarantees maximum ...Read More
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.
Sonnax internal spline clutch plate GM-CP-1 with one solid HTE friction bonded replaces those in related multi-plate performance converter kits referenced below.
In Ford 6F50/55 and first generation GM 6T70/75 units, AFL/solenoid pressure regulator bore wear results in low pressure at the shift and control solenoid valve as...Read More
Sonnax flanged impeller hub GM-90-95G fits GM 6L45/6L50 converters. The hub features a reinforced flange that provides a new thrust bearing surface and eliminates the OE weld that commonly leaks.
Sonnax B78 converter bolt is a direct replacement for use in GM rear wheel drive converters with metric threads.