The truck 16 had the heavy tow package and was rated the same as the current Denali. The 07 and 13 unsure of the hitch spec back then, I will say it worked for me and many others as I have not heard of anyone I know ever changing a hitch on a Suburban, Tahoe, Yukon that I know of. Now if GM I could convince myself the GM big brake kit will help the stopping power on the hills of TN I will add to the current truck or order a 2020 with them as I should have 100K miles on the 18 sometime that year