There are a bunch of screws that go into the side of the box holding the two side pieces of trim for the wood bed. There are a flathead screws and there are very stubborn. I have sprayed and soaked more times then I can count I still can't get them to turn. I even have used vice grips on the screwdriver well pushing my entire weight into screwdriver in effort to turn them and nothing. So far I have been lucky and haven't stripped them but I am stumped. I don't want to have to drill out and retap the holes if at all possible so I have been trying to be none destructive. Any suggestions?