Re: 18" sahara rims on 08 grand cherokee?
All of the rubbing issues and spare tire fitment issues depends on the tire size on the wheels. You can use the stock JK 18s with stock WK 245/60/18s and they will fit w/o any issues or rubbing and in the spare location. But if you have the stock JK tires on them then its a different story i think those are 255/70/18.
-Kyle '05 Dark Khaki (PJT) WK Limited 4.7L V8, '08 Overland Front End, Custom Exhaust, 245/70/17 GY Silent Armors, Bilstein 4600s, K40 Calibre DL Radar Detector/Laser Diffuser, CB.
Wife's Jeep: '06 Jeep Liberty KJ 4x4 2.8L CRD Diesel