There were no short wheel base (115") 3/4 ton trucks, so they do appear a bit beefier with the slightly larger tire/wheel diameter & 8 lug rims. The sheet metal is interchangeable between the C10 (1/2 ton-2wd), K10 (1/2 ton-4x4), C20 (3/4 ton-2wd), K20 (3/4 ton-4x4) & C30 (1 ton-2wd), so they do look, somewhat the same size, at first glance.