FOX 987-24-028 2.5 Rear IFP Shock for 2019-2026 Silverado/Sierra 1500

Vehicle Fitment

• 2019-2026 Chevrolet Silverado 1500 (Custom, LT, RST, LTZ, High Country, WT, 2.7L I4 Turbo / 3.0L I6 Diesel / 5.3L V8 / 6.2L V8, RWD/4WD)
• 2019-2026 Chevrolet Silverado 1500 (Custom Trail Boss, LT Trail Boss, ZR2, 5.3L V8 / 6.2L V8, 4WD)
• 2019-2026 GMC Sierra 1500 (SLE, SLT, Elevation, Denali, AT4, AT4X, Pro, Denali Ultimate, 2.7L I4 Turbo / 3.0L I6 Diesel / 5.3L V8 / 6.2L V8, RWD/4WD)

Fitment Notes

• Rear shock absorber only
• Fits trucks with 2.5-4.0" rear lift (non-Trail Boss/AT4 require 2" bump stop spacer)
• Trail Boss and AT4 models compatible with 0-2" rear lift setups
• Not compatible with magnetic ride control (MagneRide) equipped vehicles
• Application-specific tuning required for optimal performance

Features

• FOX Performance Series 2.5 smooth body IFP shock
• 2.5-inch impact-extruded 6061-T6 aluminum shock body
• Internal Floating Piston (IFP) design separates oil and gas for consistent damping
• High-flow velocity-sensitive damping for improved ride quality
• 5/8-inch hard chrome shaft for durability and corrosion resistance
• Application-specific valving tuned for GM 1500 trucks
• Type II clear anodized finish for corrosion protection
• Fully rebuildable and re-tunable for long-term serviceability
• Race-proven damping control for on-road comfort and off-road stability
• Enhanced heat dissipation from aluminum construction

Specifications

• Application: Chevrolet Silverado 1500 / GMC Sierra 1500 (2019-2026)
• Position: Rear
• Shock Type: Smooth Body IFP (Internal Floating Piston)
• Body Diameter: 2.5 inches
• Body Material: 6061-T6 Aluminum
• Shaft Diameter: 5/8 inch hard chrome
• Compressed Length: 17.69 inches
• Extended Length: 27.75 inches
• Travel: 10.06 inches
• Mounting Style: Eyelet (Top/Bottom ES7)
• Adjustability: Non-adjustable, application-tuned
• Reservoir Type: Internal (IFP)

Included Components

• 1x Rear Shock Absorber

Product Description

The FOX 987-24-028 Performance Series 2.5 rear shock is engineered to deliver a major upgrade in ride quality, control, and off-road capability for 2019-2026 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks. Featuring an advanced Internal Floating Piston (IFP) design, this shock maintains consistent damping performance by separating nitrogen gas from shock oil, eliminating fade during aggressive driving. Its application-specific valving ensures the suspension is precisely tuned for GM's full-size truck platform, improving both comfort and stability. 

Constructed from a durable 2.5-inch aluminum body, the shock efficiently dissipates heat while maintaining strength under demanding off-road conditions. The high-flow piston design adapts to changing terrain, providing smooth highway performance and controlled off-road articulation. Fully rebuildable and serviceable, this FOX Performance Series shock is ideal for enthusiasts running mild to moderate lift setups who want a balance of daily drivability and rugged trail capability.