79 Gas Tank Removal

Don't know why I posted this in electrical, but here goes in the right forum...Ugh. Tried, unsuccessfully to get the tank off. Looking for any tricks besides taking the darn body off. Those bolts inside the chassis are a ^$%^%* to get off. Next question...looked at the fuel filter today and saw a bunch of metal shavings in it. That's basically why I'm going after the tank. Anyone seen that before? My guess is it's the line doing it?!?! 15 years without being run, and no, I haven't tried to start it yet.
Thanks!

Guess this thread is bouncing around a little trying to find a home. The Chilton's Repair Manual discusses fuel tank removal in Chapter 5 - Fuel System, so that's why I moved it here. Browse a little further back in the pages of this forum and you'll find some other threads on fuel tanks.