Looks like there is a set of two inch spacers in your future.No adjustment left . After clearing the snow from the rim everything is set to the far left on the left rim.
They are at minimum width. Jack up one side, unbolt at the rim, rotate the center section enough to slide the tire and rim out, rotate the center back to line up and put the bolts back in.Am I looking at that wrong I'm not sure if the rim is at its max or min distance. Pics are on the rear left rim.