The SINGLE AXLE FENDER BRACKET KITS offer a strong and clean looking hidden bracket system that provides a true floating fender look. Designed to fit Peterbilt’s new style Low Airleaf suspension, our system is simple and intuitive. These brackets are made of 3/8″ steel and match up with the internal mounting flange built into the fender. The Single Axle Fender Bracket Kit is designed to mount 4 Single Axle Fiberglass Fenders. Drilling and notching is required.