[dsraven]

when checking axle track width do it with the brake drums or discs installed tightly with a couple of wheel nuts and then clamp a short section of angle iron or flat bar to that against the flange where the whell bolts down (I usually clamp the angle iron down with the wheel nuts by simply drilling a couple of holes in the right place. that clamps the drums or discs and also holds the angle iron). do one on each side and then you can get an acccurate dimension by measuring between the two parts of angle iron that stick out past the brakes.