Here is 1 new HVAC A/C & heater blower motor fan relay to fit many Oldsmobile vehicles 1975-1977
Relay has 5 contacts and a mounting tab. 
Relay has many uses; such as: convertible top, fast idle control solenoid, A/C compressor cut out, cornering lights, blower motor, power antenna, throttle control and windshield wiper washer. 
Fits: Oldsmobile; 88 Eighty Eight 1975-1977, 98 Ninety Eight 1975-1977, Custom Cruiser 1975-1977, Toronado 1975-1977