The rear bumper brackets for burbs/panels with lift gate (clam shell) are the same as for the 1/2 T Pick-up. If it has the doors, the brackets are different, so as to accomodate the recess in the bumper for access to cargo area.
I have a 46 which I believe has the same rear bumper. Unfortunately it is in my home town 1500 miles away. The body is being prepped to paint, I will call and check on getting a photo of the bracket.
best of luck on your project,
Richard
