The engine #'s are cast on driver's side, about centered, on my 1956 gmc 2-1/2 ton 424v. About halfway from there to the rear(same side) is a small plate. What is the significance of the markings on this plate(L215)? Also, above the casting #'s is the letter A with CWG below the letter A. What are these letters for? Thanks in advance.


Heavy metal worker--up to 4-inch plate.... If you can't cut it, burn it!