1985 Chevrolet S 10 Turn Signals Either Way Back Tail Lights Hazards Replaced

when i use my turn signals either way my back tail lights are hazards.

i have replaced the turn signal switch and the flasher. but still not fixed. i am replacing the tail light sockets tomorrow. the truck as two different setup for the tail lights. the person before replaced one side with a newer model not meant for the truck.

I can't figure out what else to replace so my turn signals work right.