Improve the load-handling capability and stability of your heavy-duty truck with the Timbren GMRCK25D Suspension Enhancement System. Designed for the rear suspension of select 2011 Chevrolet Silverado 2500 HD and 3500 HD models, as well as GMC Sierra 2500 HD and 3500 HD models, this SES kit helps reduce vehicle squatting, sagging, sway, and suspension settling when hauling or towing. Timbren’s rubber spring technology automatically adjusts to changing loads and road conditions for dependable support without compromising everyday drivability.
The Timbren GMRCK25D uses resilient rubber cushions to absorb road shocks and improve handling under demanding conditions. Unlike air-assist suspension systems, this kit requires no airlines, fittings, compressors, or ongoing pressure adjustments, helping eliminate common leak-related maintenance concerns. With an 8,600-pound weight capacity, it provides additional suspension support for work trucks, trailers, and towing applications where stability and control are essential.
Installation is straightforward and requires no drilling, cutting, or airline routing. The bolt-on design can be installed in minutes using basic hand tools, making it a practical upgrade for professional and DIY applications. Built by Timbren, a leader in rubber spring technology since 1965, the GMRCK25D is engineered for long-term durability and backed by a lifetime warranty. Verify vehicle fitment before ordering to ensure compatibility with your specific suspension configuration.
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