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2021 GMC Sierra 3500HD
they do have an inherent weakness that leaves more to be desired when used in a daily driven application - exposure to the elements
TECH NOTE: Brake line kit (Part # 61111) is optional for end users with 2017-2023 models who do not want to bend the factory steel lines or are looking for a braided stainless upgrade (not necessary for complete install)
The OEM sway bar’s torsion rate is extremely high and it almost marries the front axle to the chassis
we wanted to increase the seat-of-the pants change between each mode
ICON 03-09 4Runner/07-09 FJ Cruiser/05-15 Tacoma Stage 2 S2 Secondary Shock Kit 2009-2014 Ford F-150 2021 GMC Sierra 3500HDThe ICON Vehicle Dynamics S2 Secondary Shock System redefines the off road capability of the 2005 2015 Toyota Tacoma, 2003 2009 Toyota 4Runner, or 2007 2009 Toyota FJ Cruiser by allowing for the installation of a secondary shock to an existing ICON coilover setup. The addition of a secondary 2. 5 Aluminum Series shock means rougher terrain and larger off road obstacles can be overcome with confidence as the damping ability of the vehicles suspension
