Timbren Suspension Enhancement System"This SES Suspension Upgrade mounts to the rear control arm of a Ford Maverick. Each laser cut piece of steel is precision cut and powder coated to ensure a quality fit. Timbren SES kits use hollow rubber springs to deliver a progressive spring rate. In other words, the more weight that pushes down on your SES kit the harder they work to prevent rear end sag keeping your truck safe and level. Whether you're pulling a trailer or carrying a heavy load