Built specifically to compliment your Zone lift kit, FOX's proven damping technology provides a comfortable on-road ride and predictable off-road handling in a variety of conditions. Their monotube design uses an internal floating Piston (IFP) to separate the shock oil from the high-pressure, nitrogen-charged gas chamber, preventing oil aeration for fade-free performance in rough terrain. Get more out of your truck or Jeep with FOX Adventure Series 2.0 shocks. shocks. Features and Benefits Body Plating: Thick silver powder coat. Body: 2.0 Smooth bore and honed seamless alloy bodies. Bushings: Quiet nitrile rubber allows for increased suspension articulation. Internal Reservoir: Internal IFP mono-tube Reservoir design separates shock oil from the high-pressure nitrogen. Mounting: Direct replacement for stock and aftermarket lifts kits. Oil: JM92 Advanced Suspension Fluid for improved performance at variable temperatures. Shaft: 5/8 inch hard chrome plated heat-treated alloy steel. Specs Adjustable Damping: No Compressed Length: 18.96 Extended Length: 31.05 Finish: Silver Powdercoat Gas Charged: Yes Lower Mount Code: EB1 Lower Mount Type: Eyelet Position: Vehicle Specific Shaft Diameter: 5/8 inch Travel Length: 12.09 Type: Smooth Body IFP Upper Mount Code: EB1 Upper Mount Type: Eyelet