B body axle in A body?

Thanks for all the quick replies and especially the pics, Thanks '74 Sport.

I had a fast look under my absolutely stock setup, P205/70 14 tires right down to factory hubcaps and I think my results would look exactly like your pics. I measure 1 1/2" clearance to the springs and 2 1/2" to the wheelwell lip. Stands to reason that an extra inch of width on the axle would center the tires with the existing wheel offset. With the extra 3 inches of the B body axle, I would just touch the wheel opening lip, but I can move the wheels back inside the wheelwells with an inch of wheel offset adjustment each side. Of course, total width will still be limited to about 10" unless I move the springs inboard.