First week of April I can take the spare off and take a couple of pics. to figure it out if you want. Here's an over view
https://www.flickr.com/photos/77478750@N05/16099351693/in/set-72157651179443285
I think Hotrodjohn had some pics. of how the scooped out section in the fender were at a different height for 6' and 8' beds. It's not so much where the bracket is mounted the fenders are different.
