This chin Spoiler is designed for those that are running the 18" X 5.5" wheel.  These wheel packages reduce the fender to frame clearance and require a tightly fitted chin spoiler.  This chin spoiler comes in 2 versions . Both standard (no crash bar/engine guard) and crash bar version.   Although , this chin spoiler was designed for the fat tire 18, it can always be used on other wheel combos. Allow up to 2 weeks for shipping.