Reese 50073-24  Reese Custom Fifth Wheel Brackets with 4-Bolt Rail Kit for '11-13 Ford F-250, F-350 & F-450 5th wheel installation guide (beds need to be at least 6' long) Reduces install time by up to 50% All hardware included 4-bolt kits complete with rails, mounting hardware and custom bracket kit. Limited 10 year warranty