[Zabco]

Yes, thank god for the internet today. Makes research much easier. I spent months googling, binging and duckduckgoing searching for info on my Mack B model. Found an old factory data sheet that listed basic dimensions of truck and after that was mostly scaling from photos. Fortunately a lot of parts like lights and suspension components are still manufactured and used today and you can often find dimensions on manufacturer's or resellers web sites.