65 dart turn signal wiring question.

i added grounds to the two rear tail light sockets and the two front signal buckets grounds goto the body,,body is grounded at the motor and battery.....still did not help...i unhooked the turn signal switch and did all my testing at the the plug to the wiring harness. as i said before i have front and rear trun signals when i push the brake pedal i have right rear and front left turn signal.....