89 silverado - I installed new tail lights because they were ugly and half broken. Before I changed them, the right blinker didn't blink at all. After install of new OEM lights, when I turn on right blinker, both rear tail lights blink, like flashers. Also, when I push brake pedal, the white reverse light comes on with the brake lights. More is better, but I'd rather not have people thinking I'm backing up.