Unlike many silly, unrelated car commercials, the "Like a Rock" anthem that was the soundtrack for Chevrolet Trucks was dead on. We still can't see a Silverado on TV or rolling down a country road without picturing a collage of trucks that have hauled dirt, rock, couches, or a large group of friends over the years. As a sturdy piece to the General Motors puzzle, Chevrolet pickups have remained a staple in the U.S. They haven't always relied purely on the Silverado name, though. In years past, trucks have come in the form of the Corvair, El Camino, S-10, and the C-10. We rummaged through the years and picked out which we thought were the most influential designs. Here is a History of Chevrolet Trucks in 15 Pickups.