Sonnax Zip Kit 6T40-GEN2-ZIP targets the root cause of multiple concerns by sealing critical circuit pressure losses in GM 6T30 and second generation 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 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.

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.

• Simple parts install quickly with no reaming or 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