Introductions:As we all know, in order to suppress the spring shock when inhaling the rebound after a shock and impact from the road, the Shock Absorbers Assemblies is necessary for you to choose. After a rough road, although the shock absorption spring can filter the road vibration, but the spring itself will have a reciprocating motion, so the shock absorber is used to suppress this spring jumps. Made of high quality it is durable and sturdy in use. Features high corrosion resistance and long service life, it is an excellent product that you can't miss. The newly installed valve technology is based on the speed of the car. You must have one! Features:1. Excellent performance 2. High corrosion resistance, long service life 3. The newly installed valve technology is based on the speed of the car 4. Reduce friction and cool temperatures so that the valve remains firm 5. In the spring seat is all-round welding 15. Backed up by limited lifetime warranty Specifications:1. Interchange Part Number: 5990 2. Placement on Vehicle: Front Right Left3. Quantity: 2Pcs 4. Strut Assembly Includes: Strut, Coil Spring(when Applicable), Boot, Bumper Kit, Spring Seat, InsolatorPackage Includes:2 x Front SHOCK ABSORBERFord-Excursion 2000-2005 2WD Ford-F-250 Super Duty 1999-2021 2WD, F-250 Superduty Series Ford-F-350 Super Duty 1999-2021 2WD, F-350 Superduty Chassis Cab Series Return Policy All of our items come with a 30-day free return policy. If you need to return, please contact us, let us know the detailed problem and send us some pictures for confirmation. We reserve the right to refuse any returns for objective reasons. Shipping Policy All of our items are shipped free with tracking numbers. Orders will be shipped within 3 working days upon receipt of payment. Most orders will be shipped within 1 working day. In most cases, shipping takes 8-12 working days.