Notes Parking Brake Cable. 2017 GMC Sierra 2500 HD Standard Cab Pickup 78.9" Bed. 2015-2016 GMC Sierra 2500 HD 78.9" Bed. 2012-2013, 2017-2018 GMC Sierra 2500 HD Crew Cab Pickup 78.9" Bed. 2012-2013, 2017-2018 GMC Sierra 2500 HD Extended Cab Pickup 78.9" Bed.
