in my 1997 2500 gas the park lamp fuse keeps blowing just up and started out of nowheres i put a 30 am fuse in there blew it in matter of seconds ive took the sockets out didnt see any water or lose wires what else could be causin this? or how could i find out whats causing it? thanks....

Check the wiring to make sure it's not shorting out and replace the headlight switch!

And if you have a trailer hitch plug make sure the wires are not rubbing through on the frame.

rubbin through like how?

As in rubbing the insulation off the wire.

i checked it theres no wire rubbing nowheres im takin it to a shop tomar hopefully they can find out what it is...