2011-2026 GM HD Rear Spring Severe Service Kit (GMRTT35D)

This 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. 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.

Features

• Made exclusively for top-heavy applications that require maximum stability, like truck campers or salt spreaders
• Reduces sag, sway, and roll when hauling top-heavy loads
• Comfortable unloaded ride
• DIY installation
• Zero post-installation maintenance

Specs

• Rated Capacity: 8,000 lbs

Notes

• Even though you’re increasing the spring rate by adding this upgrade, this does not increase the GVWR (Gross Vehicle Weight Rating). Please make sure that the load does not exceed the GVWR set by the manufacturer.

Includes

• 2 x Rubber spacers
• 2 x Mounting Brackets
• 2 x Patented Aeon® SES suspensions (hollow rubber springs)
• All necessary hardware