The front track of the 2010 GMC Yukon-XL is 5 ft. 8.2 in. (68.2 in.).
The front track of the 2010 GMC Acadia is 5 ft. 7.1 in. (67.1 in.).
The front track of the 2010 GMC Terrain is 5 ft. 2.9 in. (62.9 in.).
The front track of the 2010 GMC Canyon is 4 ft. 9.5 in. (57.5 in.).
The front track of the 2010 GMC Savana is 5 ft. 7.8 in. (67.8 in.).
The front track of the 2010 GMC Yukon is 5 ft. 8.2 in. (68.2 in.).
The front track of the 2010 GMC Sierra-1500 is 5 ft. 8.1 in. (68.1 in.).
The front track of the 2010 GMC Sierra-2500HD is 5 ft. 8.6 in. (68.6 in.).
The front track of the 2010 GMC Yukon-Hybrid is 5 ft. 8.2 in. (68.2 in.).
The front track of the 2010 GMC Sierra-3500HD is 5 ft. 8.6 in. (68.6 in.).
The front track of the 2010 GMC Savana-Cargo is 5 ft. 7.8 in. (67.8 in.).
The front track of the 2010 GMC Sierra-1500-Hybrid is 5 ft. 8.1 in. (68.1 in.).
yes it is 6X5.5