These Ford rear upper control arms are direct replacements for the 1979-2004 Mustang (non-IRS) control arms. They will restore performance lost to old and deteriorating rubber bushings. These control arms have the stiffest rubber bushings available, and are much stiffer than what came originally on the Fox chassis Mustangs. Although Ford Racing Performance Parts claims their bushings to be "twice as stiff" as stock, our testing has shown that while they are much stiffer than Fox chassis bushings, they are identical to the 1994-04 bushings.

While for 1994-04 cars these control arms offer no improvement in performance as they do on Fox chassis cars, they are a great replacement for arms with damaged or aged bushings. Because rubber deteriorates simply from age, after several years the control arms are ready for replacement. High horsepower Mustangs and those used for track events tend to damage bushings before they can degrade from age. These replacement control arms, along with the axle end control arm bushings, are a great way to bring back or upgrade the performance of your Mustang.

Due to the resulting chassis damage, we do not sell upper control arms with urethane bushings. Due to the suspension motion required, urethane is not a good bushing material choice for this location.