CURT 16050 - PUCK SYS.5TH WHEEL RAILS 16-19 GM HDPUCK SYSTEM 5TH WHEEL RAILS ; 16 19 GM HD WITH 5TH WHEEL PREP PACKAGE Easily transfer existing hitch from previous truck to new puck equipped truck No hitch leg reconfiguring or disassembly required Converts Chevy GMC puck system (year range specific) to standard rails Industry standard rails accept most 5th wheel legs and rollers Quarter turn anchoring system provides quick installation and removal Adjustable anchors to eliminate chucking between the