Edelbrock 60109 TH700R4 Torque Converter Lock-Up Kit

This kit simplifies controlling the lock-up function on your TH700R4 overdrive transmission. It's compatible with both carbureted and fuel-injected engines, eliminating the need for expensive computer-controlled equipment. A vacuum-controlled switch and 4th gear pressure switch manage the torque converter lock-up solenoid. The kit includes everything required for installation and fits any GM TH700R4 transmission. Components: Vacuum switch, 4th gear pressure switch, brake switch, torque converter lock-up solenoid, wire harness, transmission pan gasket, and mounting hardware. Note: GM TH700R4 transmissions were produced from 1981-1993, renamed 4L60 in 1990. Early models (pre-1990) use a square weatherpack connector; later models (1990-1993) use a round 5-pin connector.