Fifteen-inch wheels often have a larger offset than 16-inch wheels do (even for the same lug pattern). Since the bolt pattern changed to 6x5.5 (necessitating new wheels), we took the opportunity to go up to a 16-inch Classic III wheel (even though 15s will fit on Wagoneer Dana 44s). We did this because tires for 15-inch wheels are getting harder to find. We lost some wheel offset by moving to the 16-inch wheel, but remember that we also added axles that were a couple inches wider. All in all, the wheels and tires remained in about the same place.