Timbren GMFK15A GMRG25C Front and Rear SES Suspension Upgrade

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About Timbren GMFK15A GMRG25C Front And Rear SES

This SES Suspension Upgrade fits the front suspension of a Chevrolet Silverado 1500 & GMC Sierra 1500 pickup truck (see below for full list of applications). We’ve engineered our hollow rubber springs to deliver a progressive spring rate. In other words, the more weight that pushes down on the rubber springs (weight from a snowplow or heavy aftermarket accessories – such as a steel bumper) the harder they work to prevent front-end sag. // This SES Suspension Upgrade fits the rear suspension of a Chevrolet Express van (see below for full list of applications). We’ve engineered our hollow rubber springs to deliver a progressive spring rate. In other words, the more weight that pushes down on the rubber springs the harder they work to prevent rear end sag. Whether you’re pulling a trailer or carrying a heavy load in the bed of your truck, our hollow rubber springs adjust automatically to keep the vehicle level at all times. This SES Suspension Upgrade replaces the jounce stop on the frame. Its unique design ensures superb ride quality – loaded or unloaded. (There should be a ½” to 1 ½” gap between rubber spring and axle to ensure unloaded ride quality.) Unlike other auxiliary spring systems, the SES Suspension Upgrade guarantees the best of both worlds.