Below are some pictures of a disassembled steering gear from a 1980's crown victoria

Cosmetically, this steering box was in really nice condition externally with no noticeable rust. This steering gear is from an automotive salvage yard located in the arizona desert, where water is scarce and road salt is not used. Internally, this box was a mess and the solid black fluid inside felt sort of like sandpaper from all of the debris in circulation.