Universal Boss Torsion-Flex 2.5" Shank 6" Drop 35K Hitch w/Dual-Ball/Pintle Lock (GENGH-2124)Description The Boss adjustable drop hitch delivers a 6" drop on a 2. 5" shank with Torsion Flex cushioning for smoother, more controlled towing. It includes the GH 0161 dual ball and pintle lock for towing bumper pull and pintle style trailers. Features 2. 5" shank with 6" adjustable drop Torsion Flex technology for a smoother, safer tow Includes GH 0161 dual ball and pintle lock Works with pintle style couplers Heavy duty towing capacity