I have a 47 Mint 5 window cab and no frame or box. I found a 55 first series nearby but that cab is shot. I was hoping the wheel base was similar but I remember reading that they changed? I want the 47-53 front clip and a flat rail box like on the 54-55. my question is. are the cab mounts and everthing in the same location. can I use the 55 frame and box for my 47 cab and clip. also are the hoods different for those years?