Hi guys... I just picked up a sweet deal on a little beater. An '87 toyota king cab 4x4 for $300.00! It runs like a top, too. The problem was that the truck was from Ohio, and over the years the frame (toyota uses a thin square tube frame. For some reason they left the ends of the frame uncapped) got filled up with mud and salt and whatever, and had rusted out so badly that both frame rails cracked across, right behind the cab! I plated the bottom of the frame rails with 3/16" steel, and the sides with 10 guage. The new side pieces are seam welded to the new bottom, and all pieces are properly plug welded to what seems to still be solid metal...(I heavily tested the areas with a chipping hammer)
OK, so far, so good. The repairs have worked. but the frame is still quietly rusting away from the inside out...
Does anyone have a good idea about a way to clean the junk out from the inside of the tube so that I can get to it with zero rust? Just painting the outside doesn't sound as if it will cure the problem...