Weeeell
upon further examination It looks the primary rust is where the lighter gauge cross member meets the frame rail on either side
The frame rails only show rust in this particular area and no where else along their length
The frame rails seem to be at least twice as thick as the cross member and it looks like they could be made out of two layers of steel, though I could be wrong

This though still annoying and doesn't seem as bad as initially thought
I know Army (with all due respect) thinks my rear end is likely to fall off
but are the frame rails the more crucial areas or should I be really worried about the cross member as well.The cross member only has rust right where it meets the frame rail
Where they meet however is pretty bad but it's localized