I am installing a new bed on a 52 chev short bed and it seems like the fornt of the box is too low. Should there be a support and or bracket attached to the frame that the bed sits on. I saw a picture of a 52 being restored and it looks like a bracket on each side of the frame about 12' behind the cab that is about 4' above frame height. Is this true and if so where do I find these two barackets?

Thanks