Nice comparison. Also note that the Revell kit has more accurate side steps, bumper, and grille than the AMT kit. There is also a 3rd kit on the market, the old AMT K123 kit, which is of the same model of truck, though modeled after a little older version (late 60's rather than late 70's). These kits can all be built into very fine representations of the real thing with a little tweaking. I personally like to mix parts from all of the kits to get the look that I am going for.