Aluminum bumper brackets, a new offering

Motorhead- the maroone car is the way most 74's came- notice the bumper is tucked in, and the other pic's show the brackets from the under side. The red one is a 76 Feather Duster with the bumper filler (holes slightly different.) Some 74's came with a similar filler and the shock mounts.

View attachment 1715652620

View attachment 1715652621

View attachment 1715652622

View attachment 1715652623
Can you measure the bolt pattern centers on the feather duster for me? width and height. I'm going to compile some data on this matter.