[thorconstr]

The original body is pretty much like a beer can strength wise. Side to side, the body panels vary in size as much as 3/8 of an inch or more. The Kirkham is a stonger, lighter, aluminum alloy built to much more exacting tolerances. Many of the new Shelby's are Kirkhams. It all depends on who Shelby has snowed into getting in bed with at any given time.