[Huck]

I believe the Blazer doors were truck doors that were converted at the factory. In addition to the top window frame cut---they were also strengthened at the latch area with a plate, a brass shim above the plate and some believe they were the first to have the screw below the vent window for strength. I have also seen more welding at the front where the window frame attaches to the door. So if you can find a nice solid truck door, you can convert it to a blazer door with little effort.