small bolt 15x7 cragar ss 4.125 back space

hell all i just put my cragar ss rims on my demon to make sure i got the right bolt pattern the back space 4.125 on them i only have a 1 1/2 from the lip of the rim to the leaf spring i just dont see me putting a nice size tire on it right now i have stock rims with a 245 60 14 on it with 3 3/4 back spacing and i only have inch from the tire and the spring not sure what to do thks ed