Door-to-Body Weatherstrip Install: Fox Body Mustang The 79-93 Mustang, better known as the Fox Body Mustang, is now 20-30 years old depending on what year model you own. After a couple of decades there are always parts that will need some restoration in any car; however, there are those few parts that you can bet will always need to be restored in a fox body Mustang. Weatherstripping is one of these “musts”. Check out our great how-to blog complete with step by step instructions and pictures to make the install a breeze. A pair of our new door to body weatherstrips will have your doors sealed up just like they were when they rolled off the line!