The FOX 2.5 Performance Series smooth-body IFP HTO shock for 2011+ GMC Sierra 2500/3500 HD rear applications (4–6" lift) brings race-proven damping control to heavy-duty trucks. Features include a 2.5" impact-extruded 6061-T6 aluminum body, internal floating piston, Hydraulic Top Out piston, application-specific valving, fully rebuildable and re-tunable internals, and a 5/8" hard chrome shaft.
Fox 2011+ GMC Sierra 2500/3500 HD 4-6in Lift Rear 2.5 Performance Series Smooth Body IFP HTO Shock