These traction bars are designed for 2003 - 2013 Dodge Ram 2500 and 2003 - 2018 Dodge Ram 3500 trucks with leaf spring suspension. For installation, first bolt on the front bracket like you would with other HSP traction bars. Then, you'll need to weld the rear axle bracket. When welding, make sure the traction bar brackets are in line with the front bracket to avoid noise and wear on the bushings. You can choose a standard or custom color for the front brackets and bars. Regarding sizing, different cab and box combinations have different eye - to - eye lengths, which are adjustable by about 1/2 inch. Check the size that fits your vehicle. As for maintenance, regularly inspect the brackets and bars for any signs of damage or wear. If you notice any issues, it's best to address them right away to keep your traction bars working well.