Fits 1981-1986 valve bodies It allows non-electrical operation of lock-up. Superior GM 700R4 4L60 Automatic Transmission Hydraulic Torque Converter Lockup Kit. Superior GM 700R4 4L60 Automatic Transmission Hydraulic Torque Converter Lockup Kit. The lock-up valve and sleeve was used in early valve bodies 81 through 86. The later valve bodies, 86 through 89 kept the valve bore, but were non-functional. 90 through 93 valve bodies were produced without the valve bore. As long as the bore is in the valve body, the hydraulic package will apply. This kit includes 5 different springs giving choices. This kit includes all valves necessary. It allows non-electrical operation of lock-up. No more searching through cores looking for the inner valve.