Fitment: The front axle seal kit is compatible with 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 Ford Super Duty F250 F350 F450 F550 dual or single rear wheel 4X4 trucks with front dana 60 axles Features: 1) The tube seal kit is used for the outer axle shaft seal to prevent dirt from entering and replace the old and worn seals. Rebuild the front axle for Ford Super Duty F250 F350 F450 F550 2) 2 inner knuckle oil seals that fit on the outer axle shaft, 2 outer tube dust seals that fit on axle housing tube end, 2 vacuum seal O-rings that are for the wheel hub bearing assy.(total 6 pieces). Replace for part # 2017426, 2014835, 54983 3) The front axle knuckle seal kit is made of steel and rubber, treated with high-temperature resistance and anti-corrosion, sturdy and durable 4) This kit is used for the Front Axle to prevent lubricant leakage or dirt from entering and offer your rebuild or maintenance job a successful end paired with the expected performance. Best replacements for your worn or damaged seals Package including: qty 2 Inner Knuckle Seals (Part # 2017426) qty 2 Outer Tube Dust seals (Part # 2014835) qty 2 O-Ring (Part # 54983 )