1939 GMC Panel Truck Bumpers? I asked a few weeks ago but was out of town and did not receive the input… I have a set of bumpers I think are to a 1939 GMC Panel Truck. The rear has the center bend and they both have 2 groves approximately 1/4 inch wide through the center of both blades. I believe that they will fit 1939 through 1946 Chevy and GMC Panel Trucks… Question is what year and model is correct?? Appreciate any information.