The FOX Performance Series 2.0 Front IFP shock (part 980-24-643) is built around an internal floating piston, which contains the latest in shock technology in the manufacturer's Performance Series lineup. The piston separates the shock oil from the high-pressure nitrogen gas chamber, which helps prevent oil aeration. The manufacturer also pairs a race-developed high-flow damping piston with application specific valving. Compared with a worn factory unit or a budget replacement, that combination is the real reason to pay more: steadier damping over washboard, highway droning, and rough trail sections, without the feel of a stock shock running out of control.
The manufacturer lists this front unit for 1997–2006 Jeep Wrangler TJ models with a 3–4.5 inch lift. Its application table also lists the 1998–2001 Cherokee XJ at 2–3.5 inches under the same part number, which explains the "2-3.5in" wording in the title. Owners on user forums consistently say to match shock length to your lift and spring height. An extended shock on a short setup can bottom out early, so confirm your lift before ordering. The 9.6-inch stroke is a key figure when comparing this shock to other IFP options for TJ suspension builds.
The manufacturer lists this part for 97–06 Wrangler TJ front applications with a 3–4.5 inch lift.
The manufacturer's application table lists 1998–2001 Cherokee XJ models for this part number at a 2–3.5 inch lift.
