The mud flaps look great and are high quality. The brackets ensure proper fit. The Z brackets and factory fender bolts position the flaps perfectly, and the remaining bolts make sure they remain securely and accurately positioned. If you don't have a lift you will probably need help since it is hard to work both sides alone. I also found it much easier after i bought 1.5 inch 10-24 bolts. While the flaps are expensive, i think they are worth the cost because of fit and quality.