PFF19-803G is a CNC machined aluminium mount and polyurethane bush to provide 0.6 degrees of positive caster offset for improved handling.  Focus ST and RS owners are all too familiar with the commonly reported  torque steer effect of their vehicles. Our new part provides  caster offset  to improve handling characteristics and has been proven and tested on road and  track.      PFF19-803G Front Wishbone Rear Bush    Caster Offset  is a  CNC-machined Aluminium mount with Polyurethane bush providing  approximately 0.6deg of caster offset. This improves camber gain in cornering  without compromising straight line traction.In our Purple Shore 80A Road Series material, PFF19-803G is 55% stiffer than the original rubber bush, whilst our Black Series Shore 95A material is 270% stiffer than the original for those looking for a Track/Competition option.