OK. I think I figured out the photo posting thanks to a post on VAF with instructions...this is a great forum.
Below should be two photos one showing the brake caliper on the Grove gear and the second showing the end view of the axle and brake caliper. The caliper arrived installed on the axle.
The caliper is attached to the axle with four fasteners: two that are countersunk (see the fasteners with the yellow witness stripes in the second photo) and two AN4 bolts that go through the brake caliper to the axle and gear leg.
The two fasteners in the second photo with the yellow 'witness' stripes attach the brake caliper to the axle only - not the gear leg.
I think that I need to remove the two fasteners with the witness stripes. This will allow me to move the caliper to a position that is 90 degrees to the ground but will not allow me to re-install the two counter sunk fasteners (i.e. two of the AN4 bolts will have to carry the load of the wheel/tire/brake combination). Assuming the max brake energy is 120K ft-lbs the max shear in the two AN4 bolts would still be below 50ksi - well below the 75ksi max.
Thoughts? Comments? What abouts...?
hope this picture posting thing works...