wilwood disc brake ?????

I have a 72 dart that I converted to large bolt pattern (PST tubular upper control arms, Moog 73 dart lower ball joint, 73-76 disc spindles and bilstein shocks.) The wilwoid disc brake kit#140-11019 is supposed to clear 15" rims. I tried putting the rim on withthe car on jack stands to check for clearance. The rim was rubbibg the caliper both front and back corners. Has anybody ran into this situation? Looking for help here, will call wilwood tomorrow. Sorry for no pics, phone can't resize them. Thanks in advance.