Richard
I have also wondered on may of those brackets in our CGT.
The brackets inside each of the rear passenger doors are also to be found in our truck. Have tried all of my ammo boxes but none fits...
On the rear corner lockers, it is only on the left hand side we have those brackets you mentions. And the photos shows what fits in....
The brackets under the spare wheel, I guess are for some camo-poles used. Guess they would have stored the rods to cleane the barrels inside (from side to side) at the narrow hatches...
Rolf