Made specifically for the Reese M5 fifth wheel hitch only. Works with 2016-19 GM 2500/3500 pickup trucks with the OEM underbody prep-package.• Legs come pre-assembled, adjusted and ready to install.• Legs will either interchange with 20K center section (30884) or 27K center section (30894). Sold separately.• Head assemly unit (30892) sold separately.• Fits: Reese M5 Fifth Wheel HitchPlease note: This fifth wheel hitch will not work with Elite Series Rail Kits. Fitment: 2016ChevroletSilverado 2500 HD6 Ft. 6 In. Bed With 5th Wheel Prep Pkg2016ChevroletSilverado 2500 HD8 Ft. Bed With 5th Wheel Prep Pkg2016ChevroletSilverado 3500 HD6 Ft. 6 In. Bed With 5th Wheel Prep Pkg2016ChevroletSilverado 3500 HD8 Ft. Bed With 5th Wheel Prep Pkg2017ChevroletSilverado 2500 HD6 Ft. 6 In. Bed With 5th Wheel Prep Pkg2017ChevroletSilverado 2500 HD8 Ft. Bed With 5th Wheel Prep Pkg2017ChevroletSilverado 3500 HD6 Ft. 6 In. Bed With 5th Wheel Prep Pkg2017ChevroletSilverado 3500 HD8 Ft. Bed With 5th Wheel Prep Pkg2018ChevroletSilverado 2500 HD6 Ft. 6 In. Bed With 5th Wheel Prep Pkg2018ChevroletSilverado 2500 HD8 Ft. Bed With 5th Wheel Prep Pkg2018ChevroletSilverado 3500 HD6 Ft. 6 In. Bed With 5th Wheel Prep Pkg2018ChevroletSilverado 3500 HD8 Ft. Bed With 5th Wheel Prep Pkg2019ChevroletSilverado 2500 HD8 Ft. Bed With 5th Wheel Prep Pkg2019ChevroletSilverado 3500 HD6 Ft. 6 In. Bed With 5th Wheel Prep Pkg2019ChevroletSilverado 3500 HD8 Ft. Bed With 5th Wheel Prep Pkg Reduces 3"" or 2-1/2"" square receiver tube opening to 2"" | Reese M5 Fifth Wheel Legs Only - GM