i have 98 chevy c1500 ext. cab 350vortec auto when i got it the blinkers didnt work or brake lights i replaced both circult broads for the rear tails and now i have both brake lights and blinkers and i put new bulbs too and yes i have working 3rd brake light and my headlights work and highs work and front running lights work but i have not been able to get the rear running lights to work...