Brand New Zone Offroad FOX 2.0 Adventure Series Shock (Part #FOX98450751). Built specifically to compliment your 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. Fits: Dodge: 2003-2010 Ram 2500 4WD with 8" Lift (Front) 2003-2010 Ram 3500 4WD with 8" Lift (Front) Ford: 2000-2005 Excursion 4WD with 6" Lift (Front) 1999-2004 F-250 4WD with 4" Lift (Front) 1999-2004 F-250 Super Duty 4WD with 4" Lift (Front) 2011-2016 F-250 Super Duty 4WD with 8" Lift (Front) 1999-2004 F-350 Super Duty 4WD with 4" Lift (Front) 2011-2016 F-350 Super Duty 4WD with 8" Lift (Front) Ram: 2019-2025 1500 4WD with 5" Lift (Rear) Note: This shock is compatible with the front or rear suspension depending on the vehicle. See fitment for further details. Features: Thick silver powder coat. 2.0 Smooth bore and honed seamless alloy bodies. Quiet nitrile rubber allows for increased suspension articulation. Internal IFP mono-tube reservoir design separates shock oil from the high-pressure nitrogen. Direct replacement for stock and aftermarket lifts kits. JM92 Advanced Suspension Fluid for improved performance at variable temperatures. 5/8" hard chrome plated heat-treated alloy steel. Specs: Lower Mount Type: Eyelet Upper Mount Type: Stem Gas Charged: Yes Adjustable: No Compressed Length: 18.25 Inch Extended Length: 29.84 Inch Travel Length: 11.59 Inch Shaft Diameter: 5/8" You can view and download the assembly or instruction booklet here.