I started removing my truck parts to paint. In the places where parts met (fenders with front trim, radiator trim, etc.) were all rusted (not to bad but they had corrosion). I suppose the guy from whom I bougth the truck just gave it an outer paint job without disassemble. My question is, if I paint all parts separately and assemble them later, should I put something between parts to avoid future rusting? The paint will be scratched or even removed with vehicle use, but should this be a concern if the car is kept away from the sun/rain, while parked?
Thanks