Hello, rebuilding a rear drop down tailgate on a 1972 Fj40. What have you guys done to refinish this part as to prevent paint chips and rusting? There is metal on metal contact with the mechanism. Where can I get the pins that hold this assembly together? I could drill them out and powdercoat the parts individually, but not sure how I'd get them back together. It's almost like a pin rivet of some sort.