Zip Kit Sonnax 6L45 6L50 6L80 6L90

Sonnax ZIP Kit for 6L45, 6L50, 6L80, 6L90 The Sonnax Zip Kit 6L45-6L90-ZIP is designed to address critical circuit pressure losses in GM 6L45, 6L50, 6L80, and 6L90 valve bodies. By sealing circuits within the main line, clutch apply control, solenoid feed, and lockup control, it resolves the root causes of common transmission issues. The kit also prevents end plug leakage and improves checkball sealing. Installation is quick with no reaming or special tools required. Features and Benefits: Drop-in Zip Valve™ parts for fast, hassle-free installation Seals critical circuits to restore hydraulic integrity Includes a detailed technical booklet with rebuild and inspection tips Quick guide for easy installation and vacuum testing instructions Includes: Pressure Regulator Valve Kit Boost Valve & Sleeve Clutch Select Valve Spring Kit Compensator Valve, Sleeve & Spring TCC Regulator Valve Kit O-Ringed End Plugs Actuator Feed Limit Valve Kit Center Support Seal Kit Vacuum Test Nut Che