sorry guys another question thats probably been asked but im looking at a wheel that's off of a mustang its a 18x8 Back Spacing: 5.68" (144mm) and Offset +30mm (1.2") they also make a 9" rim but i think 8 will fit better i have a 68 dart with pro stock springs in the rear and a stock a-body 8 n 3/4 and possibly going with reilly motorsports rms front susp kit will i have any problems? my biggest thing is will i rub on the leafs?