Two Pickups with more similarities, such as the body structure, starting price, ground shadow size, and maximum occupancy, than differences, like the horsepower, fuel economy, and height. First of all, the 2018 Ram 1500 Crew Cab has a more powerful engine than the 2018 Chevrolet Silverado 1500 Crew Cab, and it gets 1 fewer mile on a gallon of fuel. And finally, the 2018 Silverado 1500 Crew Cab is slightly shorter than the 2018 1500 Crew Cab. Among similarities are the body structure, starting price, ground shadow size, and maximum occupancy.