The new independent rear suspension consists of an aluminum knuckle attached to a rubber-isolated steel subframe by means of a lower control arm, an upper lateral link, and a toe-control link. A fourth locating device, which Ford calls an integral link, transfers acceleration and braking forces from the knuckle through the control arm to the subframe. Manual-transmission Mustangs have a cast aluminum differential carrier, while automatic cars use cast iron for that component.
