These mounts were designed around the new Jeep Wranglers body style (97-99).  The mount allows the antenna to be mounted on either the left or right side of the vehicle.  The stainless steel mount and support bracket are made from 12 gauge (0.109") stainless steel.  After the mount is installed, there will not be any visible mounting holes.  All mounting hardware (also stainless steel) is hidden under the vehicles hood.  Even though there were no installations on earlier model years, the mounting concept is very basic and the probability of these mounts working on pre-1997 Jeeps is high.  Both mounts are complete with a standard 3/8"-24 threaded antenna mounting stud.