2001-2010 Chevrolet/GMC C-2500, C-3500 HD Silverado, Sierra (4x2, 4x4). Ride-Rite and Sport-Rite Air Helper Springs utilize a pair of convoluted or tapered-style air springs. These air springs are capable of 3000 - 5000 pounds of load carrying. Under no circumstances do we recommend exceeding the manufacturer's Gross Vehicle Weight Rating (GVWR). Ride-Rite & Sport-Rite Air Helper Springs can be installed on most light trucks, RVs and vans. Ride-Rite and Sport-Rite Air Helper Springs are installed between the frame of the suspension providing load support through the use of air pressure.