When i tore my truck down, the cab mounts were rusted out bad on the frame.

Stupidly, I took them off without measuring and now i can't find them. Nearing the point where i am going have the cab back on, so i need to know the exact dimensions of the layout, so I can make some new ones. I've tried getting measurements from the cab, but it is awkward and probably not as accurate. The truck is a 50 1/2ton. Hopefully someone out there can cure my stupid mistake.