Application: For GM Silverado/Sierra 1500 For GM Trail Boss/Sierra AT4 For Dodge/Ram 1500/2500/3500 For Ford F-150/F-250/F-350/F-450 2 & 4WD For Ford Super Duty For Chevrolet Silverado HD and GMC Sierra HD Compatible for most of Truck,Van,SUV,etc; Specification: Placement on Vehicle: Left,Right,Front,Rear Suspension clip: 1 piece Min height: 100mm Max height: 180mm Working stroke: 80mm Single air port size: G 1/8 Install hole size：2*M10 Top plate diameter: 106mm Air spring bag body diameter: 145mm Air spring bag capacity:  2500LBS   Internal jounce bumper: Included Air Fitting: Included Feature: 1. 100% Air Tightiness testing 2. 24 hours air tightness test ≤0.02MPa 3. Anti-corrosion and provide a more consistent wear surface 4. Built to strict quality control standards 5. CNC Machined Components 6. Designed for Comfort Suspension 7. Easy to install 8. Gives the driver more control of ride 9. Good heat dissipation 10. It has a high compressive strength and good sound insulation to ensure our driving comfort and safety 11. Test more than 3 million times 12. Sturdy & Durable Material; Brand: Maxpeedingrods Manufacturer Part Number: WEF6VP Manufacturer: Maxpeedingrods