Ford Focus ST(2013-2018) Rear Motor MountUpgrading your rear motor mount on your Focus ST is critical to preventing two of the largest problems facing the Focus ST: wheel hop and torque steer. The main causes for wheel hop and torque steer are excessive play in the motor mounts, more specifically the rear motor mount. This play allows the engine and transmission to buck under hard launches which triggers wheel hop and torque steer. With a stiffer and smaller bushing diameter, your Focus ST