ev04.... i did this to my 98 back in feb, i used the factory push pins that are used on the late model Mach 1. I havent had any trouble with it "falling off" yet. I think it looks real good.
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87 Ranger.. 302,AFR's,E303,T-5Z
88 FHP Mustang
01 P71 Crown Vic
98 Mustang GT