Is your Chevy sagging every time you pull a trailer or boat? Does it sway excessively when hauling a heavy load? Timbren offers a simple solution help keep your truck or suv level and stable. The SES (Suspension Enhancement System) kits are a simple solution that can be mounted easily between your frame and axle to improve your suspension performance. All kits are custom fit for a perfect fit and available for the Silverado 1500, Silverado 2500HD, Colorado and more.