4L80E Connector Repair Kit / External Wiring Description: Upgrades the external wiring of the 4L80E from 1991 -1993. When used on 1991 -1993, the internal wiring must be replaced. This is an upgrade to prevent / repair leaks in the housing connector. Included in the kit: External connector, wire support, and butt connector to create a quality connection. Installation For Chevy GMC 4L80E from 1993 – , check the parts compatibility section in this listing. Included in the kit: 1 * Connector Repair Kit / External Wiring Without Owner’s Manual