PFF19-100BLK - PFF19-100 fits 4WD models only. PFF19-102BLK - For M10 / 17mm bolt PFF19-103BLK - For M12 / 19mm bolt PFF19-128BLK - Please check anti roll bar size, as they vary from car to car. PFR19-111BLK - This kit is supplied with new mounting bolts. The original Ford bolt needs to be cut off to be removed. PFR19-210-14BLK - Check rear roll bar size, especially Sierra XR4i.