Another obvious thing is the bars go up/down on the chevs and left/right on the gmcs. Even the hood bars are all different lengths on the chevs while the gmcs are all identical.

I meant did ya find a coe? :p

My 1953 Chevrolet
1947.1 Gallery
1972 C-10 1/2 Ton & 1972 C-30 1 Ton