The update was to accommodate the ride level sensor the was added to the truck in 2018. The newer 98562DJ’s have a mounting position in the UCA for the ride level sensor and 98561’s does not. The 98561DJ’s cannot directly bolt on 2018 - 2019 without addressing the level sensor mounting bracket but will work on 2010 - 2017 vehicles

98561DJ is for 2010 - 2017 years only.

98562DJ is for all 2010 -2019 years.

Contact ICON tech-support for more details (951) 689-ICON.