You have an "Old School" Mustang? (I define old school as between 1964 -1969, anything else was either overweight or had no power until the "5.0"L V8's of the late 80's early 90's) My dad had a 1967 from new that he ran into the ground by the time he dumped it in 1984, but I still miss it, hot black vinyl seating and all ;-)