Automatic Transmission Valve Body Zip Kit

The Sonnax Zip Kit 6T70-ZIP is engineered to address and resolve common issues within GM Gen. 1 6T70/75 automatic transmissions by sealing critical circuit pressure losses in the valve body. It prevents the escape of pressure from essential circuits, including main line, clutch apply control, actuator feed, and lockup control. Additionally, the kit seals areas prone to end plug leakage and faulty checkball sealing, thereby restoring hydraulic control and improving overall transmission performance. Installation of the 6T70-ZIP is designed to be efficient and user-friendly. It requires no reaming and can be installed without specialized tools, making it accessible for rebuilders. The kit includes uniquely designed parts that directly target the root causes of valve body complaints. A comprehensive technical booklet is provided, offering in-depth rebuilding instructions, inspection guidance, and crucial vacuum testing information for thorough valve body repair. This Zip Kit helps to cure a range of symptoms, including burnt clutches, line pressure instability, loss of fuel economy, lack of line rise, pressure loss, and various shift concerns, as well as TCC apply & release issues and related trouble codes. It also helps to address pressure switch codes, by sealing related circuits and allows for the salvage of the expensive Transmission Electro-Hydraulic Control Module (TEHCM).