This truck on
EBay appears to have some original stenciling/paint on the valve cover. Hard to ascertain much from the pic, but would be awesome to see in person. I want that truck, BTW.
Couple questions:
1) Tim, why do you believe the later 235s were lighter gray? Not doubting you, just curious what you know.
2) I often wonder if the gray even changed within a model year across plants. If the spec was just "gray," maybe GM was sourcing paint from the lowest bidder...year to year? I doubt those that made those decisions were thinking about nerds like us (read: me) 60 years later who can emotionally invest in such minutae.