2.0 Performance Series IFP 4-6" Rear 05-14 View larger

FOX 980-24-665 2.0 Performance Series IFP


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FOX 2.0 Performance Series IFP smooth body shocks 


2005-2016 Ford Superduty F250/F350 Rear 4-6" Lift

2005-2016 Ford Superduty F450/F550 Rear 2-4" Lift

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The 2.0 Performance Series IFP smooth body shocks contain the latest in shock technology to transform the performance of your Truck or SUV. They use our race-proven damping control to provide a comfortable on-road ride and predictable offroad handling in even the toughest conditions. The precision metal impact aluminum body increases cooling capacity and will never rust. Inside you will find our race-proven performance valving technology Our Internal Floating Piston (IFP) mono-tube design 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. The race developed high flow damping piston matched with application specific vavling provides the 2.0 Performance Series IFP shock a predicable ride quality capable of handling the roughest road conditions.


  • 2.0" Metal impacted 6061-T6 aluminum will resist rust over time

Body Plating

  • Clear-anodized for a durable finish

Internal Reservoir

  • Internal IFP mono-tube reservoir design separates shock oil from the high-pressure nitrogen


  • Black-anodized, CNC-machined 6061-T6 billet aluminum


  • 5/8" hard chrome plated heat-treated alloy steel



  • Race-developed high-flow piston design


  • Application specific valving to maximize performance


  • Redundant sealing pack system main seal, wiper seal, scraper seal


  • JM92 Advanced Suspension Fluid for improved performance at variable temperatures


  • Quiet nitrile rubber allows for increased suspension articulation


  • Direct replacement for stock and aftermarket lifts kits