John C Garage 2" Inch Drop Shackles for 2011-2019 GM 2500HD TUNERS & PROGRAMMERS Longhorn Fab has designed this

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John C Garage 2" Inch Drop Shackles for 2011-2019 GM 2500HD TUNERS & PROGRAMMERS Longhorn Fab has designed thisThe John C Garage 2" drop shackle set will give you the maximum amount of drop for your 2011 2019 GMC Chevrolet 2500HD. These do require modifications. Installation instructions included.