loose door striker

[monkeymissile]

the door striker on the passenger side of my ambulance is loose in the door frame so that it slides back and forth about 3/4". The door will latch, but then slides out that 3/4".
The (2) big philips head screws holding the striker will not budge. I have soaked them repeatedly with all sorts of miracle fluids and pounded them with a hand-impact driver to no avail and there appears to be no way to access them from behind.
I haven't tried a torch yet to heat them up. Is that my only recourse at this point or does anyone have some helpful advise?

thanks!

Justin

[Cal_Gary]

I'd go with heat at this point, and I'll mention an old trick: Sometimes you can heat the screw/bolt itself so it expands then lean on it with an ice cube or two to quick-shrink it, then use an impact driver to take it off. This reduces the chance of overheating and warping the panel area behind the latch-just use thick gloves when holding the cubes to the screw.
Gary

[monkeymissile]

thanks Gary,
I hope to tackle it this weekend, will advise of the results.

Justin