Hope this works. I don't see Jadahrabi" pic just a link to it that I now can't open. I have an M1 like Jadahrabi shows and then there's this one. Both taken from a thread "a page down" by "six barrel Bill" about running v belts on a magnum.
I may have to find one like the 2nd pic due to wanting AC on this build and 80s truck brackets possibly not wanting to work on the first one.