'32 AAB bumper mounts

[Seabees]

Howdy boys, I attempted to mount the bumper on the '32 AAB I've been working on, but it appears I have the wrong mounts/bumper. I compared them to Sugarmakers '32 dump truck and they are slightly different. The truck I am working on didn't have the bumper on it when I acquired it, so I don't have any "Before" pictures. Newc sent me some of a '32, but it's hard to tell if it is the same as mine. I don't recall where I got the bumper, guess I'll have to figure that out. My question to you is, is the '32 different from a '33, '34, etc.? Thanks guys!