I HAVE LEARNED FROM THIS SITE, THAT THE 28 LO 1 TON TRUCK CAB BY CHEY IS/OR DOES HAVE THE SQUARED OR FLAT 90 DEGREE BACK AT CORNER'S? WHEN I GOT MY TRUCK THE BODY WAS OFF THE CHASSIS AND IN PEICES! THE CAB THAT I WAS GIVEN IS ROUNDED AT THE REAR CORNERS? AND DOES APPEAR TOO HAVE THE CORRECT BACK WINDOW? WOULD THE ROUND CORNERS MAYBE TELL ME THAT IT MAY BE A PERRY TYPE CAB? ALSO THE CENTER LINE THAT START'S AT FRONT END DOES RUN OR FLOW THROUGH THE DOORS AND AROUND THE SHEET METAL? ABOUT THE HALF WAY POINT OF BODY! IF THAT MIGHT HELP ID WHAT TYPE OF CAB I HAVE?