Confused with how a leaf spring flip kit is going to work.

['69C-10]

To clarify, I understand how flip kits work, but I must be missing something on my '71 frame. I read about a flip getting 6"-7" drop with a 50/50 on needing a notch. I'm running 235/70/15 that are 4" away from the fender lip. My axle is 4.5" away from the frame before a flip. Currently I don't think my axle would even fit between my leafs and frame. I understand that these are old leafs and they appear to sit pretty flat but regardless getting rid of the 4" of tire gap would leave about .5" from axle to frame....