I am working on a '22 Depot Hack. But I have running board brackets with two different hole spacing's. I also have 8" wide running boards that came with it. What is the correct size for a '22? When did the size change from 8" to 9"?
I believe the ones with 3 holes on each end are for '26-27.
You may have a 26-27 frame, you may want to post a photo of the front and rear cross member.
I think that after the 26-27 cars came out the replacement running board supports were made in the longer length with 2 holes at each end. If the dealer installed the new style on an older car they were instructed to cut off the end so the old style running boards could be installed.
Or someone put it/them on and didn't trim the end(s) off.