I thought that too, but I had a few people "set me straight" that there was only the two, I always thought there were three as well. I thought there was one that the front tire of the dually lined up with the outer rear, one that lined up with the center of the rear duallys (mine), and one that the front lined up with the inner (typical dually with box/fenders).
Guess I should be starting a new thread...this one is starting to hijack a little to much....sorry.
Either way I would appreciate the half ton measurements...
