Extreme Manufacturing offers superior class American-made products that substantially decrease our customers' life-cycle maintenance costs while maintaining safety. Our goal is to provide the highest quality products for those that demand the best. Product Spotlight: Extreme Cam S-Cam / Bushing System for Heavy-Duty Trailers Extreme Cam kits contain everything you need to convert any trailer to an fully enclosed cam tube system. We manufacture Extreme Cam kits in our in-house production facility. It all starts with using American-made steel and precision manufacturing processes. We use a ISO 9000 inspired quality management system to ensure we are delivering bushings with the tightest tolerances in the industry. Our bushings are made with a proprietary combination of materials and production processes that we guarantee will outperform the competition. Our Extreme Cam tubes are built with .125 wall DOM steel tubing that is measurably stronger than the 16-gauge material used by our competitors. We also have aggressive procedures to fight corrosion from the start. First, we powder coat every Extreme Cam enclosure tube. Next, we use anti-corrosion oil infused bushings with 5 large grease channels to ensure your s-cam stays lubricated. Then we install our specially designed double lip seals to keep contaminants from infiltrating your cam tubes. Finally, we install a pressure relief valve that lets excess grease out without compromising the integrity of the seals.