Any idea how much the diff drop would cost to get? Also the calmini kit is priced at $590 so....it's fairly close to what it would cost me to get struts and rear springs. Anyone see any issues running 305/60r18s under a 3 inch lift (18x9 rims)? I've been playing with the tire calc I've found searching around the forum but it's hard to compare with the idea of a lift in there as well. Still worried about picking the wrong offset and backspacing. Thanks again for the input guys.