2011-2026 GM HD Rear Spring Severe Service Kit (GMRTT35D) Automated 5" OD by 0

5" OD by 0

requiring no modifications

2 longer bolts

they connect directly to factory connectors without errors

2011-2026 GM HD Rear Spring Severe Service Kit (GMRTT35D) Automated 5" OD by 0This SES Suspension Upgrade fits the rear suspension of a Chevrolet Silverado HD & GMC Sierra HD pickup trucks. Each laser cut piece of steel is powder coated to ensure a quality fit. Weve 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 youre pulling a trailer or carrying a heavy load in the bed of