ZONE 6.5" Suspension Kit Cast Steel Arms w/ Nitro Shocks 2014-2016 Silverado/Sierra 1500 4WD (ZONC25N)

*IMPORTANT*: GM is producing several knuckle/control arm configurations in 2014-2017 models trucks. Cast Steel control arm equipped models will require the ""Cast Steel Control Arm"" kit (#C25N). Stamped Steel and Aluminum control arm equipped models will require the ""Aluminum Control Arm"" kit (#C26N). Be sure to verify which factory control arms your truck has before ordering your kit by referecing our help image below (click image for larger view):

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All wheel drive models require drive line modification
Frame bracket modification and minor welding required
To reduce trimming required 20" wheels with 5-3/4" backspacing recommended
Add-a-leaf option recommend for crew cab models for a more level stance (Part # C6159)
Will not fit models equipped with magnetic ride control.
Factory 17"" and 18"" wheels cannot be reinstalled due to tie rod end interference

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