Chevrolet Silverado Pickup Truck New Metal Sign ZR2 in Blue The ZR2 has an exclusive look. The truck sits two inches higher on a raised suspension, and the steel front bumper has been cut to provide a 31.8 - degree approach angle. Red recovery hooks, unique skid plates, 33 inch off road tires, a steel rear bumper and hidden exhaust outlets are standard equipment. Agency checks for five years