1 yr. old new wire harnis. Every thing was working FINE on my 53, 3600 pu,but i had to change the park/signal light with led,s. Should have left it alone. Changed back to orignal lights,then no blinkers.But light stay's on, on collum. Changed flasher{was bad}and replased a bulb. Still no blinkey. Park lights o\are working. Any ideas (back lights good)did'nt check pass. side though, looked good last night, so did the bad one, need new glass's. Thanks Guy's you allways come through. Hope all had a nice Thanksgiving....Paul