Neal,
If a fella was to cut the top on a hard top and add an x frame to it, there is also an extra body mount brace behind the wheels on the outside that is not on any other frame. The body mount bolt holes on a conv frame are 3/4" where as all other holes are 1 5/16". If a fella were to make a trim tag new, that would be a red flag, the body style is 1067DTX on all conv. Restoration shops are building conv out of hard tops as the title doesn't always designate it as a conv. only 2 DR in some states. They still have to have the original trim tag on the firewall, if it's shiny new then I would question if it's really a conv. The whole point is as 2x4 said it's possible to build a conv out of a hardtop if you've got the trim tag 1067DTX and have a frame. There is one thing that is different on a conv. on the floor pans. The floor pan in the rear of a conv only has 3 indents in the floor as all others are 4. The conv floors there selling are really hardtops with the correct braces, but the rear floor pans are hardtops. I've got three convertibles in my garage, and one of those brand new floors they sell as conv with hardtop rear floor pans. The VIN # would have to designate a belair which is C, B was for 210 model belairs, I think. Hope this helps, Bob H
