2a. Here's is a look at how much of the bed floor will have to be removed in order to fit the new bridge notch. The two photos show the suspension at full lift and full drop. Because this truck is equipped with 16-inch wheels and 60-series tires, the overall diameter of the tire is around 26 inches, which is why the airbags are not fully compressed when the truck is laid on the ground. There's plenty of suspension travel and axle clearance left to stuff even larger-diameter rollers back there.