Abstract: A center deflector for a front bumper of a truck or tractor vehicle includes a thickened portion extending upward from the inner deflector surface and extends laterally across a deflector section, preferably spanning substantially an entire width of the deflector section thereof. The thickened portion comprises a cross-sectional shape having a height that gradually declines from an intermediate maximum height to a reduced height along a rear edge thereof, and preferably resembles an airfoil. The thickened portion may include a hollow interior containing a pressurized gas.

Abstract: A multiple axis hinge arrangement for a truck hood includes a first hinge arrangement and a second hinge arrangement laterally spaced and mounted at first and second sides, respectively, of a front end of a truck. The first and second hinge arrangements include horizontal hinge elements that support a truck hood for pivotal movement on a horizontal axis relative to a truck frame and include vertical hinge elements that provide vertical pivot axes. A coupling member is provided at each of the first and second hinge arrangements allowing the selected hinge arrangement to be uncoupled from the front end of the truck so the hood is free to pivot on the vertical axis of the coupled arrangement.

Abstract: A multiple axis hinge arrangement for a truck hood includes a first hinge arrangement and a second hinge arrangement laterally spaced and mounted at first and second sides, respectively, of a front end of a truck. The first and second hinge arrangements include horizontal hinge elements that support a truck hood for pivotal movement on a horizontal axis relative to a truck frame and include vertical hinge elements that provide vertical pivot axes. A coupling member is provided at each of the first and second hinge arrangements allowing the selected hinge arrangement to be uncoupled from the front end of the truck so the hood is free to pivot on the vertical axis of the coupled arrangement.