[mickmate]

Ant maaate, see what ya think of my numbers.
Front wheel width 7.5"
Actual width 8.425"
Offset edge/hub 3.625"
Original track 56"
Half wheel width to centre (track) 8.425"/2=4.2125"
hub to track (wheel center) = 4.2125-3.625 = .5875"
Track + (2 X .5875) = 56 + 1.175 = 57.175" flange to flange.
I'm glad to see more people this deep into it. We gotta keep kicking this stuff around. Let me know what you think.