Curt Manufacturing 60710 Towing Wiring Includes Double Lock gooseneck hitch #60607 and installation brackets #60604 Accepts up to 30,000 lbs. GTW and 7,500 lbs. vertical load limit Vehicle-specific design optimizes strength and installation time Removable chrome-plated 2 5/16" trailer ball fits most gooseneck trailers Double locking pins for superior trailer and trailer ball security