I am a little new to JEEPs. Last year, I bought a decent 1997 TJ. I was trying to go with bigger tires. I found a good deal and I bought 5 rims and tires. Since you know, the TJ came with 15 inches rims. The rims I bought are 18 inches. I remembered the first time I got into the forum, I was asking how to fit those tires into my JEEP and you guys help me with the wheels adaptors suggestions. I barely drove my jeep as I mostly used it on summer time. I am starting to realize that my sharp turn becomes harder and harder. The tires are not rubbing against nothing but when making a sharp turn, the back tires start dragging and the whole truck start vibrating specially when backing up. When going forward in straight line, I never feel any dragging. Could it be the tires too big for the truck or it is a differential problems? Please help!