Ok, so I see all the discussion on where to tie the cage into. I have an idea to build a cage that will replace the fiberglass top. Now stop me if someone has already done this, but I think it would be cool to build a full length cage that tied into the mounting holes for the front of the halfcab on the newer blazers. and then rest on the bed rails going all the way back to the tail gate. In addition you could skin the top with sheetmetal (and maybe a roof rack) And have roll down sides to keep the rain out. It would even be pretty easy to extend support through the body to the frame. Done right it would fallow the body perfectly.