No modifications to the parts are necessary. They are ready to install out of the box. GUARANTEED ONLY to fit vehicles in the Description. Guaranteed to perform better or equal to the original parts Ceramic pads are quieter and last longer than metallic pads. This kit is compatible with:Ford Explorer 2002 - 2005 - 2WD or 4WD ModelsFord Explorer 2003 - 2005 - 2WD or 4WD Explorer Sport or Explorer Sport Trac Models
