Wanting to know what size will fit my 69dart -- rear is stock 7.25 with 10' brakes-- paint/body work done-- so I cannot rol the lip Found a 15" 8.5 " wide by 3.5 back space wheel-- will this work without mods? I'm not going to hotrod- it (can guess by the 7.25) just would like to know limitations when scouting out wheels --thanks