Sonnax 4L60E 4L65E 4L70E Transmission Sure Cure Kit Sonnax Sure Cure kit SC-4L60E is a comprehensive reconditioning package for GM 4L60-E PWM units featuring the best Sonnax products developed to help rebuilders restore and enhance transmission performance. Sure Cure components are the same Sonnax parts sold individually to resolve common valve body complaints as well as other transmission problems. The high-quality Sonnax parts in each Sure Cure kit repair worn areas and protect the transmission against future damage. Plus, each kit comes with easy-to-read, step-by-step installation guide that covers the inspection and repair of the most critical areas of the valve body. Restore shift quality and reduce comebacks Repairs biggest trouble areas to reduce comebacks Includes step-by-step instructions for comprehensive valve/pump body restoration Get everything you need for restoring troublesome units in one place, at one cost NOTE: This kit is fully compatible with 95-later 4L60-E units with PWM/EC3 (electronically controlled capacity clutch) control. These can be identified by the 13-pin case connector, PWM/TCC solenoid and PWM pump (five solenoids). All components in this kit are compatible 9394 non-PWM units EXCEPT the TCC apply valve 77805E-K installed in the pump. These units can be identified by the 12-pin case connector, only having a 3-2 solenoid in valve body (four solenoids).