Weak rear control arms are a common problem for GM A-Body cars (Chevelle, GTO, Cutlass, Gran Sport). This problem is especially noticeable on high horsepower cars. For years the backyard garage solution was to add boxing plates welded to the open channel in the control arm, but times change and aftermarket control arms offer both improved strength and higher quality bushings and materials. Join the Classic Car Restoration Club team as we make short work of upgrading the rear control arms on a 1968 Chevelle SS.