I've got an '86 Mighty Max and an '87 Montero.
Last winter the Mighty Max took a really harsh beating with the amount of salt they put on the roads in Delaware, rusted two sizable holes around the cab mounts on the floor pan and my side paneling of both doors. Both holes about 4 inches in diameter.
Do you drive your aging trucks year round? How has your truck held up in the winters? Anyone just keep them in the garage over winter or any tips of preventing this from happening on the Montero?