Buy your GMC Sierra wheels here
GMC Sierra made in the year 2018-01-01 have a 6x139.7 bolt pattern and a 78.1 center bore. On this model, lug nuts are used to attach the wheels to the hub. The recommended lug bolt thread is 14x1.50. The recommended wheel size is between 18 and 26 inches and the ET meassurement for this model is 24.