Part No. 6T40-ZIP
Includes: Pressure Switch Rebuild Kit, End Plugs (5), Compensator Feed Regulator Valve Kit
TCC Regulator Apply Valve, Shuttle Valve, End Plug, Spring & O-rings 2 O-Rings, 1 Extra
AFL Valve, Sleeve, Spring & Retainer, Checkballs (6) .250" Dia. Drill Bit .062" Dia. (not shown)
Aluminum Plugs (2) .062" Dia., 1 Extra (not shown) O-Rings (7) 2 Extra
Sonnax Zip Kit 6T40-ZIP targets the root cause of multiple concerns by sealing critical circuit pressure losses in first generation GM 6T40, 6T45 and 6T50 valve bodies. The kit contains uniquely-designed parts to prevent the loss of pressures within the main line, clutch apply control, actuator feed, compensator feed and lockup control circuits. The kit also seals multiple circuits known to suffer from end plug leakage or poor checkball sealing. No separate special tools are required for installing these parts.
Replacement pressure switch seals and laminate discs in this Zip Kit address various trouble codes related to failures of fluid pressure switches which are internal to the transmission electro-hydraulic control module (TEHCM).
The Zip Kit quick guide provides clear and easy instructions on one sheet to get the unit sealed up and back on the road quickly. In addition to general rebuilding tips and technical information, the technical booklet included in this kit contains vacuum testing information and locations at other key areas of the valve body.
No reaming required
Installs quickly with no separate special tools required
Uniquely designed parts address root causes of valve body concerns by sealing critical pressure circuits
Detailed technical booklet included with in-depth rebuild and inspection tips for comprehensive valve body repair
Allows salvage of expensive TEHCM
For more info check out the Sonnax site.
This Zip Kit is what the “top of the line transmission shop” use on their rebuilds. This kit requires no special tools (reams).
This kit is all top quality parts and the best instructions are included.
Keep in mind that some valve body have more areas that need to be addressed.
Buy quality transmission parts and solenoids. Fast free shipping to the US
I have been in the transmission industry for over 25 years, we do not sell anything that we don't use on our own rebuilds.