Retrofitting a T56 transmission into your vehicle? Need to wire it? Our T56 extension harness kit is perfect. Kit includes all of the connectors for the transmission : backup lights switch, VSS (vehicle speed sensor), reverse lockout solenoid, and skip shift solenoid (optional). Harness extends approx. 24" from the tailshaft. Harness is made from color coded TXL grade wiring just like factory. Wires are clearly labeled for installation.