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Ships within 48 hours · Estimated delivery Jul 28 - Aug 2
expect 30-40% increase suspension strength
top overload spring must be removed for installation of RAS
*If your truck does have a factory top overload: it must be removed and we recommend RAS® Mega-Duty for that application
3-in-1 system: helper spring + sway + traction
Chevrolet 3500 Silverado 2011 – 2026 | Mega Duty Kit 1999 expect 30-40% increase suspension strengthGet the best of both worlds with RoadActive Suspension Mega Duty our strongest suspension upgrade engineered for heavy payloads, serious towing, and demanding truck applications. Mega Duty strengthens your factory leaf springs by up to 50% while improving unloaded ride quality, handling, and overall control without the hassle or maintenance of airbags. Designed for 3 4 ton and 1 ton trucks that tow and haul regularly, RAS Mega Duty helps reduce: Up to