Mifeier Side Step Rails Nerf Bar Running Board For 04-08 F150 06-08 Lincoln Mark LT Super Crew Cab (With 4 Full Size Doors) 4" S/S 2004-2008 Ford F150 Super Crew/Crew Cab Pickup Only (Not Fit Heritage,Regular Cab Or Super/Extended Cab), 2006-2008 Lincoln Mark LT Super Crew/Crew Cab Pickup Only (Not Fit Regular Cab Or Super/Extended Cab Material: Made from heavy duty T304 Stainless Steel 4" Inch Oval Style Tube + Slip-Resistant Plastic Step Pads Direct Bolt-On installation 2pcs 4" Oval Stainless Steel Side Step Nerf Bars + Mounting Hardwares + Installation Instruction