BackRack 17-21 Ford F250/350/450 (Aluminum Body) Louvered Rack Frame Only Requires HardwareBACKRACK(TM) has doubled the corrosion resistance on the Louvered Rack by E Coating the Frame before Powder Coating. Being unsatisfied with the Powder coverage in tight areas of the Louver assembly, BACKRACK(TM) does it right by immersing the entire Frame into a multi stage dip process to cover every hidden surface. This Part Fits: Year Make Model Submodel 2009 2010 Ford F 250 Super Duty Cabela's 2008 2009 Ford F 250 Super Duty FX4 2004 2010 Ford F