Alright I'll explain it here then also. Basically there are 2 styles of hitches for the h1, an early style and a late style. The late style hitch seems to be much more sturdy so that's what I went with and what I ordered the parts for. The late style hitch looks like this:
View attachment 576903
There are 4 brackets needed to attach a late style h1 hitch to the hmmwv. The first 2 attach from the ends of the hitch to the outer bumper brackets, part numbers 6007905 and 6007913 along with 2 mounting blocks part number 6006928. It seems that the h1 outer bumper brackets have holes in them for the hitch mounts where as the hmmwv outer bumper brackets just have one large hole in the bottom, I haven't had a chance to see how the brackets match up with that large hole or if I need to drill some more.
View attachment 576901
The Other two brackets attach the arms of the hitch to the cross member, part numbers 6007693 and 6007694.
View attachment 576902