I'm going to try and detail this as best as I can. A couple of my dash lights are out. My 4wd and O/D lights work when my headlights/parking lights are off. But as soon as I turn on the parking/headlights and the dashlights come on the 4wd and O/D lights don't show it don't matter if you mess with the dimmer switch or not the O/D and 4wd lights don't light up. Has anyone had this issue? It don't make sense I rather ask before I tear the dash apart (thats already planned to replace the bulb for gas gauge and top speedometer). Possibility someone tore it apart before and rewired it wrong?

 

any ideas?

 

have you tried replacing the bulbs? if not try that...