The FOX 2.5 Performance Series smooth-body IFP HTO shock for 2011–2019 GMC Sierra 2500/3500 HD front applications (4–6" lift) applies race-proven damping to lifted heavy-duty trucks. It features a 2.5" impact-extruded 6061-T6 aluminum body, high-flow velocity-sensitive damping, internal floating piston, Hydraulic Top Out piston, application-specific tuning, fully rebuildable internals and a 5/8" hard chrome shaft.
Fox 11-19 GMC Sierra 2500/3500 HD 4-6in Lift Front 2.5 Performance Series Smooth Body IFP HTO Shock