CURT 60631 Under Bed Gooseneck Hitch Installation Brackets for Select Chevrolet Silverado, GMC Sierra 2500, 3500 channel Fits trailer hitches with a refrigerator Fits trailer hitches with a 2" x 2" receiver tube opening Mounts any CURT adjustable pintle hook or ball & pintle combination Face plate holes spaced apart 1 3 4" high x 3 5 16" wide Six position height adjustment allows for precise trailer leveling Shank constructed from solid steel for optimum strength Protected by a highly durable carbide powder coat finish Limited lifetime warranty (one year finish Fits select Chevy GMC short bed trucks with puck system (year range specific) Quarter turn anchoring system provides quick installation and removal Adjustable anchors to eliminate chucking between the legs and under bed platform R20 5th wheel roller #16550 provides 12" of travel in the truck bed Lockable handle self resets to the ready to couple position after uncoupling Cast yoke with poly torsion inserts to suppress shock loads and reduce noise Fully articulating torsion head for controlled coupling and stable towing High strength we provide the necessary hardware for an easier installation but they are only one of the members in the heavyweight tag team that is CURT gooseneck towing