Front Axle Vaccum Knuckle Tube Seal Kit Compatible with 1998-2004 Ford F250 F350 F450 F550 Super Duty Excursion Dana 50 60, Front Oil Seal Set Replaces# 50491 50381 41784-2 Item Description Compatible Models: This front axle knuckle tube seal kit compatible with 1998 1999 2000 2001 2002 2003 2004 2005 Ford Super Duty F-250 F-350 F-450 F-550 Excursion 4X4 trucks with front leaf spring Dana 50 / 60 axles. Also fits Ford Excursions F250 And F350 3/4 Ton And One Ton 4x4 Trucks Package Include: The front axle seal kit includes: 2 x Inner Knuckle Oil Seals(50491, 28600, 710493), 2 x Outer Tube Oil Seals(50381, 710413), 2 x Vacuum Seal O-Rings(41784-2, F81Z-4A322-AA), total 6 pieces Premium Material: This 50491 front axle knuckle tube seal kit is made of premium steel and rubber, high temperature resistant and corrosion resistant. It is thoroughly tested to ensure performance and lasting quality High Performance: The front oil seal kit adopts a precision sealing design to prevent lubricant leakage and block harmful contaminants from entering. Premium materials and reinforced housing help prevent installation damage and improve efficiency and ensure long-term use Warm Tips: Please check your OE number and car model before purchase the front axle knuckle tube seal kit. If you receive products with any quality problems can be returned or exchanged within one year. We will provide you with timely service and support ? See more product details Payment We accept payment only through the Payment system. Shipping Most products are usually shipped within 1-2 business days from the date of being ordered. We do ship worldwide via the International Shipping Program. For an international shipment quote, please add add item to cart and attempt checkout. will supply the international shipping price. Return We do not accept returns except in certain, unlikely circumstances.