Upgrade the on-road comfort and off-road control of your 2014-2018 Compatible with Dodge Ram 2500 or 2013-2018 3500 4WD to FOX Performance Series 2.0 IFP (internal floating piston) rear shocks. Designed to fit a BDS 6 to 8-inch lift suspension kit. The mono-tube design's internal reservoir separates the shock oil from the high-pressure, nitrogen-charged gas chamber. The IFP eliminates oil aeration allowing maximum performance from the factory-tuned, precision valving. FOX and BDS joined forces to custom valve each application to work perfectly with each BDS Suspension system. Based on FOX race products but re-designed to turn your BDS-equipped truck into an off-road machine providing a predictable ride capable of handling the roughest conditions with fade-free performance.Adjustable Damping : NoCompressed Length : 18.5Extended Length : 30.05Finish : Clear-anodizedGas Charged : YesLower Mount Code : EB1Lower Mount Type : EyeletShaft Diameter : 5_8 2-inch Impact extruded and CNC machined 6061-T6 clear anodized aluminum one-piece body resists rust over time 5/8-inch hard chrome plated heat-treated alloy steel shaft Race-developed high-flow piston design Application-specific valving to maximize performance Internal IFP mono-tube reservoir design