System includes: Head with preinstalled ball, tapered spring bars, deep drop shank, control brackets, lift-assist bar and all hardware necessary for an easy install. 2-5/16" hitch ball - Preinstalled and torqued to proper specificationsIncludes 8.5" deep drop shank - Fits today's taller trucksNo-drill, clamp on brackets (fits up to 7' Trailer Frames)Fits bottom mount couplersLimited Lifetime Warranty