Fine Lines TRA0006SS Axle Housing Line Material: Stainless Steel Fits: 1999-2007 Silverado 1500HD and 2500 with 9.5 inch 14 Bolt Axle, Rear Disc Fits: 1999-2007 Sierra 1500HD and 2500 with 9.5 inch 14 Bolt Axle, Rear Disc Pre-bent Brake Lines