heavy duty flasher
2 Answers
Mine is a 85...and yes I had to replace the flasher relay after I installed the tow package. Oreilly, napa they all had it and its about 10-15$
Be careful. I've read that those fords have brakes and flashers on the same circuit and that the transmission computer reacts to the brakes through the brake lights (and flashers), so the intermittent flashing is not good while driving. In other words you can screw up the tranny! Good luck.