I searched old topics but I don't think I found a clear answer. How many of the support rod/brackets came in the Suburban, specifically the 1951 model. These are the brackets that go above the headliner material and support the material by means of split pins. So all that is visible inside the cab is the button head.
I'm pretty sure I had all of the fallen headliner pieces when I got my project and there were only three brackets there.