i have a 1989 3/4 ton dodge and alotta times the lights just shut off...and come back on when they are ready then do it over again i already changed the switch no luck the wires are hacked up can anyone give me a wire diagram

 

You changed the headlight on/off switch?
Try the dimmer hi/low switch.

 

i can try it but its almost def in the wires cause they have been hacked up so much

 

I had the same problem with mine,changing the dimmer worked for me.

 

The headights usually use an automatic circuit breaker instead of a fuse, as they get old and worn they will overheat and flip off, once they cool down it will connect for a while before getting warm and disconnecting again.

Scott