My 2001 Ford Ranger 4.0L 4x4 has a 6' bed that has lost a lot of its paint and is rusting in spots. I was thinking this would be a great impetus to abrade the surface and throw some Herculiner on it. The hardware in the bed is extremely rusty, so I'm wondering if it makes sense to pull the various bolts from the main surface of the bed and replace them with stainless equivalents. In the picture below, I'm basically talking about the four large bolts in the bed itself and the eight smaller ones on the tailgate.
My two concerns are:
Is it sensible to pull the bolts from the bed in a Ranger? I was thinking that if the bolts go into a piece of metal, I'm probably safe, but that if it's bolt + washer + nut, it'd be next to impossible to put the new bolts in. Should I just paint over them and not worry about it?
Will I harm some other part due to galvanic corrosion? I'm leaning towards "probably not, everything's likely already rusted".