4.8. 5.3 & 6.0 LITER. Splash shield bolt. A threaded rod with a drive head (such as hex, 12 point, torx, etc) on one end used to secure the Floor Pan Splash Shield to it's mounting point. A threaded rod with a drive head (such as hex, 12 point, torx, etc.) on one end used to secure the Skid Plate to it's mounting point. Radiator Support Splash Shield Bolt. Floor Pan. Powertrain. Radiator Support. Support bracket screw.