I installed a new rear tail light harness on my 64 k10. Electical worked perfectly before replaced everything. Now the left signal blinks in the "hazard" sequence. The right tail light works fine. Brake lights work fine too. Only the left signal when switched has the hazard light sequence. I mounted the bed with rubber bushings/pads. I first thought the tail lights lost ground with the bushingsz/pads in place....I ran a ground from each taillight to a clean bolt ....thinking I've got ground.

Any one have thoughts on what might be going on? I should also add that I have running lights on the roof and the now blink withe the left signal too.


Appreciate any thoughts. John


1964 K10 Fleetside Pickup Truck