After years of use, 1979-93 Fox Body Mustang A/C knobs can become worn and damaged. Get your direct replacements at 5.0 Resto. These knobs are exact reproductions of your stock knobs giving your interior that new look. Add a custom touch with a set of billet knobs. Finish off your Fox Body interior restoration with a new A/C control trim bezel, vent register, and temperature control cable.