This Relay is used in several different places on various 1967-1979 Corvettes. The 1968-1972 wiper relay is located under the console on Left Hand side near heater controls, the 1969-1976 Blower Fan Relay is on the blower case, and the 1977-1979 Blower Fan Relay is under the hood near the Right Hand hood latch, both are easy to change