Originally Posted by tonyspumoni

Sorry to be unclear. Current setup is Performance Suspension with stock 17 inch rims. I want to go to an 18 inch rim but also with an 18 inch rim with asymmetric width tires, wider in the rear than the front. Style 287s would be my target, but the general question is whether I can take the new rims and bolt them directly on the hubs as they are now, or whether I need to add any spacers to permit wheel clearance. The drop from the base suspension to the Performance Suspension was modest - maybe 1/2 inch - and I would go with the OEM diameter tire - 225/45s on the front and 255/35s on the back (I think that's right).