Early body mount bolt covers are steel, screwed down. But the jute backing usually holds water and rusts the screw heads off. Swapping to the later plugs is a good upgrade, but the front plugs are much larger than the middle 2 sets. Since the (Bronco only) rear bolt heads are in direct contact with the jute, their heads may be rust-damaged. They can be repaired by CAREFULLY filing the hex down to the next size so a socket fits. But the rusted & filed steel is much softer than the original surface, so replacement bolts should be installed.

Owner caption July 2012 · Photo 4563 of 5000