I did some measuring,I laid a level acrossed the back of the rim and measured the backspace. It was between 6 6/16 and 6 5/16. They are suppose to be 6.4 or 162mm. My guess is they are not machined right. They only clear the back caliper by maybe 1/8 inch. If I put a 3mm or 5mm spacer on do I have to go with longer lug studs?
07 Mustang GT,Alloy Met.,Dark Charcoal Leather,5 spd manual,3:55 gears,upgraded interior. Mods; Hurst Billet shifter,Stillen sway bars,CDC replacement Grille, Agent 47 Mirrors,DG Customs 1/4 window louvers,Steeda cowl hood,CDC chin spoiler,Smoked turn signals,CCFL Halo headlight,tinted windows ,Mac axle back,AVS black taillight trim,sequential&tinted rear lights,CW black bumper layover grille.Omega B/M 18x9&18x10 Nitto NT555 255/45 & 285/40