If you aren’t satisfied with the precision of those hydraulically filled bushings in your S197 Mustang’s front control arms, Prothane [(714) 979-4990; www.prothane.com] has a new urethane bushing and bracket kit (PN 6-220) for ’05-’08 Mustangs and Shelby GT 500s. The company also offers a complete bushing kit for the S197 Mustang (PN 6-2034).