An impact absorbing truck grille guard having a rear frame consisting of a matrix of triangular tubes, the rear frame having an upper end, a lower end, and a forward end, the forward end of the rear frame defining a forwardly opening deflection space; a front frame having an upper end, a lower end, and a forward animal impact surface, the upper and lower ends of the front frame being respectively fixedly attached to the upper and lower ends of the rear frame, the front frame consisting of a rectangular array of hollow collapsible tubes, the front frame being adapted for, upon animal impact, deflecting rearwardly into the forwardly opening deflection space; and a truck mounting bracket fixedly attached to the lower end of the rear frame, the truck mounting bracket being adapted for fixed attachment to a truck front end and for cantilevered upward extension of the front and rear frames.
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