FOX 2.0 Performance Series IFP Front and Rear Shock Set for Chevy/GMC HD
Upgrade damping on your lifted 2011–2026 Chevrolet Silverado or GMC Sierra 2500HD/3500HD with this four-shock FOX 2.0 Performance Series IFP set. Designed for the package's listed 1.5–3.5-inch lift application, these aluminum smooth body shocks combine application-specific valving with an internal floating piston for comfortable on-road control and predictable off-road handling.
Package Contents and Application
- Two front shocks, part number 985-24-189
- Two rear shocks, part number 985-24-190
- Four shocks total for the front and rear suspension
- Listed package application: 2011–2026 Chevrolet Silverado and GMC Sierra 2500HD/3500HD
- Listed package lift range: 1.5–3.5 inches
Controlled Damping for Roads and Trails
The impact-formed aluminum bodies increase cooling capacity and resist rust. Inside each monotube shock, an internal floating piston separates the shock oil from the high-pressure nitrogen gas chamber to help prevent oil aeration and maintain the performance of the factory-tuned precision valving.
A race-developed high-flow piston and application-specific valving help the suspension respond predictably over rough surfaces. JM92 Advanced Suspension Fluid supports damping performance across variable temperatures, while nitrile rubber bushings allow quiet operation and increased suspension articulation.
Construction and Specifications
| Body | 2.0-inch metal-impacted 6061-T6 aluminum for rust resistance |
|---|---|
| Body finish | Clear-anodized for durability |
| Internal reservoir | IFP monotube design separating shock oil from high-pressure nitrogen |
| Components | Black-anodized, CNC-machined 6061-T6 billet aluminum |
| Shaft | 5/8-inch hard-chrome-plated, heat-treated alloy steel |
| Piston | Race-developed high-flow design |
| Valving | Application-specific |
| Seals | Redundant sealing pack with main seal, wiper seal, and scraper seal |
| Oil | JM92 Advanced Suspension Fluid for performance at variable temperatures |
| Bushings | Quiet nitrile rubber for increased suspension articulation |
| Mounting | Direct replacement for compatible stock and aftermarket lift-kit applications; match shocks to the listed lift range |
Catalog reference: The imported front-component description identifies a FOX 2.0 Performance Series smooth body IFP monotube aluminum shock with clear-anodized finish, front position, 2.5–3.5-inch lift, GM full-size HD truck 2011–2018, sold individually in that source. This listing is for the four-shock package described above, not one individual shock.