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Fox

Fox

Fox 2020+ GMC Sierra 2500/3500 HD 4-6in Lift Front 2.5 Performance Series Smooth Body IFP HTO Shock

SKU: FOX987-24-033

Shocks and Struts

FOX 2.5 Perf Shock...

Fox 2020+ GMC Sierra 2500/3500 HD 4-6in Lift Front 2.5 Performance Series Smooth Body IFP HTO Shock
Fox

Fox

Fox 2020+ GMC Sierra 2500/3500 HD 4-6in Lift Front 2.5 Performance Series Smooth Body IFP HTO Shock

SKU: FOX987-24-033

Shocks and Struts

FOX 2.5 Perf Shock...

A$737.69
IN STOCK! Est Ship 3-5 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

FOX Performance Series shocks contain the latest in shock technology to transform the performance of your Truck or SUV. They use our race-proven damping control to provide a comfortable on-road ride and predictable off-road handling in even the toughest conditions.

Product Overview

Increase your vehicle's off-road capability by extending drop-out travel in most applications. Experience on-road comfort with performance-minded shock valving for a connected ride with less vehicle sway. Tuned specifically for your vehicle’s application._x000D__x000D_ _x000D__x000D_ Consistent and fade-resistant performance due to high-quality materials: aluminum bodies, race-developed main piston, and a true internal floating piston (IFP) to separate gas and oil._x000D__x000D_ _x000D__x000D_ Built-to-last, torture-tested and race-proven to give a lifetime of great rides. FOX products are built from aluminum, dissipating heat four times better than conventional materials. All FOX shocks are fully serviceable and resistant to corrosion and harsh environments.


Features and Benefits

  • 2.5” Impact extruded 6061-T6 aluminum shock body
  • Type II clear-anodized body plating
  • High-flow velocity-sensitive damping
  • 5/8” hard chrome shaft
  • Internal floating piston (IFP)
  • Hydraulic Top Out (HTO) piston
  • Corrosion resistant
  • Application specific tune
  • Fully rebuildable and re-tunable
  • Internal Floating Piston [IFP]
  • Hydraulic Top Out [HTO] Piston
  • 5/8 in. Hard Chrome Shaft
  • 2.5 in. Impact Extruded 6061-T6 Aluminum Shock Body

Product Details

Year Make
Body Diameter (in):2.5
Body Material:Aluminum
Bottom Mount:Clevis
California Proposition 65:! WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Collapsed Length:14.770 in.
Compressed Length (in):14.77
Description:PERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK
Extended Length (in):21.25
Extended Length:21.250 in.
Fox Catalog:TRUCK
Label Name:20-ON GM 2500, 3500, Front, 2.5 Truck PS, IFP, Torsion Drop 4” Lift, HTO
Part Number:fox987-24-033
Prop 65 Y/n:Y
Reservoir Type:Internal Floating Piston
Series:Performance
Shock Stroke:6.490 in.
Title:PERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK
Top Mount:Bar Pin
Travel (in):6.49
Type:Smooth Body
WARNING CA Proposition 65 Message:! Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
WARNING CA Proposition 65:Yes

Part Type

Suspension Shock Absorber

Data: v4.2 - Upd: 2026-10-15 02:44:16

Features

  • 2.5 in. Impact Extruded 6061-T6 Aluminum Shock Body
  • 2.5” Impact extruded 6061-T6 aluminum shock body
  • 5/8 in. Hard Chrome Shaft
  • 5/8” hard chrome shaft
  • Application specific tune
  • Corrosion resistant
  • Fully rebuildable and re-tunable
  • High-flow velocity-sensitive damping
  • Hydraulic Top Out (HTO) piston
  • Hydraulic Top Out [HTO] Piston
  • Internal floating piston (IFP)
  • Internal Floating Piston [IFP]
  • Type II clear-anodized body plating

Specifications

Product Attributes - Brand
Fox Shox
Product Attributes - Manufacturer's Part Number
987-24-033
Product Attributes - Part Type
Shocks and Struts
Product Attributes - UPC
00692878899390

Reference Information

Brand Name/s Fox
StreetFX SKU fox987-24-033
SFX Item ID 4500025
Supplier Item Code 4500025
Manufacturer SKU 987-24-033
Manufacturer UPC N/A
Alternative References FRS-987-24-033, 4-6in

Brochures

Compatibility

Application Data
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelCUSTOM
    Beginning Year2020
    Ending Year2024
    Engine TypeV8
    Liter6.6
    CID401
    CC6571
    Engine Size6.6L/401
    Engine FamilyChevy small block Gen V
    Drivetrain4WD
    Shock PositionFront
    Body StyleCrew Cab Pickup
    Application NotesPERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK; Lift: 4-6, Not For Use With Lift Kits That Change OE Mounts
    Engine VIN Code7
    RegionUSA
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelCUSTOM
    Beginning Year2020
    Ending Year2024
    Engine TypeV8
    Liter6.6
    CID401
    CC6571
    Engine Size6.6L/401
    Engine FamilyChevy small block Gen V
    Drivetrain4WD
    Shock PositionFront
    Body StyleExtended Cab Pickup
    Application NotesPERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK; Lift: 4-6, Not For Use With Lift Kits That Change OE Mounts
    Engine VIN Code7
    RegionUSA
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelCUSTOM
    Beginning Year2020
    Ending Year2024
    Engine TypeV8
    Liter6.6
    CID401
    CC6571
    Engine Size6.6L/401
    Engine FamilyChevy small block Gen V
    DrivetrainRWD
    Shock PositionFront
    Body StyleCrew Cab Pickup
    Application NotesPERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK; Lift: 4-6, Not For Use With Lift Kits That Change OE Mounts
    Engine VIN Code7
    RegionUSA
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelCUSTOM
    Beginning Year2020
    Ending Year2024
    Engine TypeV8
    Liter6.6
    CID401
    CC6571
    Engine Size6.6L/401
    Engine FamilyChevy small block Gen V
    DrivetrainRWD
    Shock PositionFront
    Body StyleExtended Cab Pickup
    Application NotesPERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK; Lift: 4-6, Not For Use With Lift Kits That Change OE Mounts
    Engine VIN Code7
    RegionUSA
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelCUSTOM
    Beginning Year2021
    Ending Year2024
    Engine TypeV8
    Liter6.6
    CID403
    CC6599
    Engine Size6.6L/403
    Engine FamilyDURAMAX V8 DIESEL
    Drivetrain4WD
    Shock PositionFront
    Body StyleCrew Cab Pickup
    Application NotesPERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK; Lift: 4-6, Not For Use With Lift Kits That Change OE Mounts
    Engine VIN CodeY
    RegionUSA
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelCUSTOM
    Beginning Year2021
    Ending Year2024
    Engine TypeV8
    Liter6.6
    CID403
    CC6599
    Engine Size6.6L/403
    Engine FamilyDURAMAX V8 DIESEL
    Drivetrain4WD
    Shock PositionFront
    Body StyleExtended Cab Pickup
    Application NotesPERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK; Lift: 4-6, Not For Use With Lift Kits That Change OE Mounts
    Engine VIN CodeY
    RegionUSA
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelCUSTOM
    Beginning Year2021
    Ending Year2024
    Engine TypeV8
    Liter6.6
    CID403
    CC6599
    Engine Size6.6L/403
    Engine FamilyDURAMAX V8 DIESEL
    DrivetrainRWD
    Shock PositionFront
    Body StyleCrew Cab Pickup
    Application NotesPERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK; Lift: 4-6, Not For Use With Lift Kits That Change OE Mounts
    Engine VIN CodeY
    RegionUSA
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelCUSTOM
    Beginning Year2021
    Ending Year2024
    Engine TypeV8
    Liter6.6
    CID403
    CC6599
    Engine Size6.6L/403
    Engine FamilyDURAMAX V8 DIESEL
    DrivetrainRWD
    Shock PositionFront
    Body StyleExtended Cab Pickup
    Application NotesPERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK; Lift: 4-6, Not For Use With Lift Kits That Change OE Mounts
    Engine VIN CodeY
    RegionUSA
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelHIGH COUNTRY
    Beginning Year2020
    Ending Year2024
    Engine TypeV8
    Liter6.6
    CID401
    CC6571
    Engine Size6.6L/401
    Engine FamilyChevy small block Gen V
    Drivetrain4WD
    Shock PositionFront
    Body StyleCrew Cab Pickup
    Application NotesPERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK; Lift: 4-6, Not For Use With Lift Kits That Change OE Mounts
    Engine VIN Code7
    RegionUSA
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelHIGH COUNTRY
    Beginning Year2020
    Ending Year2024
    Engine TypeV8
    Liter6.6
    CID403
    CC6599
    Engine Size6.6L/403
    Engine FamilyDURAMAX V8 DIESEL
    Drivetrain4WD
    Shock PositionFront
    Body StyleCrew Cab Pickup
    Application NotesPERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK; Lift: 4-6, Not For Use With Lift Kits That Change OE Mounts
    Engine VIN CodeY
    RegionUSA
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelLT
    Beginning Year2020
    Ending Year2024
    Engine TypeV8
    Liter6.6
    CID401
    CC6571
    Engine Size6.6L/401
    Engine FamilyChevy small block Gen V
    Drivetrain4WD
    Shock PositionFront
    Body StyleCrew Cab Pickup
    Application NotesPERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK; Lift: 4-6, Not For Use With Lift Kits That Change OE Mounts
    Engine VIN Code7
    RegionUSA
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelLT
    Beginning Year2020
    Ending Year2024
    Engine TypeV8
    Liter6.6
    CID401
    CC6571
    Engine Size6.6L/401
    Engine FamilyChevy small block Gen V
    Drivetrain4WD
    Shock PositionFront
    Body StyleExtended Cab Pickup
    Application NotesPERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK; Lift: 4-6, Not For Use With Lift Kits That Change OE Mounts
    Engine VIN Code7
    RegionUSA
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelLT
    Beginning Year2020
    Ending Year2024
    Engine TypeV8
    Liter6.6
    CID401
    CC6571
    Engine Size6.6L/401
    Engine FamilyChevy small block Gen V
    Drivetrain4WD
    Shock PositionFront
    Body StyleStandard Cab Pickup
    Application NotesPERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK; Lift: 4-6, Not For Use With Lift Kits That Change OE Mounts
    Engine VIN Code7
    RegionUSA
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelLT
    Beginning Year2020
    Ending Year2024
    Engine TypeV8
    Liter6.6
    CID401
    CC6571
    Engine Size6.6L/401
    Engine FamilyChevy small block Gen V
    DrivetrainRWD
    Shock PositionFront
    Body StyleCrew Cab Pickup
    Application NotesPERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK; Lift: 4-6, Not For Use With Lift Kits That Change OE Mounts
    Engine VIN Code7
    RegionUSA
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelLT
    Beginning Year2020
    Ending Year2024
    Engine TypeV8
    Liter6.6
    CID401
    CC6571
    Engine Size6.6L/401
    Engine FamilyChevy small block Gen V
    DrivetrainRWD
    Shock PositionFront
    Body StyleExtended Cab Pickup
    Application NotesPERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK; Lift: 4-6, Not For Use With Lift Kits That Change OE Mounts
    Engine VIN Code7
    RegionUSA
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelLT
    Beginning Year2020
    Ending Year2024
    Engine TypeV8
    Liter6.6
    CID401
    CC6571
    Engine Size6.6L/401
    Engine FamilyChevy small block Gen V
    DrivetrainRWD
    Shock PositionFront
    Body StyleStandard Cab Pickup
    Application NotesPERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK; Lift: 4-6, Not For Use With Lift Kits That Change OE Mounts
    Engine VIN Code7
    RegionUSA
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelLT
    Beginning Year2020
    Ending Year2024
    Engine TypeV8
    Liter6.6
    CID403
    CC6599
    Engine Size6.6L/403
    Engine FamilyDURAMAX V8 DIESEL
    Drivetrain4WD
    Shock PositionFront
    Body StyleCrew Cab Pickup
    Application NotesPERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK; Lift: 4-6, Not For Use With Lift Kits That Change OE Mounts
    Engine VIN CodeY
    RegionUSA
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelLT
    Beginning Year2020
    Ending Year2024
    Engine TypeV8
    Liter6.6
    CID403
    CC6599
    Engine Size6.6L/403
    Engine FamilyDURAMAX V8 DIESEL
    Drivetrain4WD
    Shock PositionFront
    Body StyleExtended Cab Pickup
    Application NotesPERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK; Lift: 4-6, Not For Use With Lift Kits That Change OE Mounts
    Engine VIN CodeY
    RegionUSA
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelLT
    Beginning Year2020
    Ending Year2024
    Engine TypeV8
    Liter6.6
    CID403
    CC6599
    Engine Size6.6L/403
    Engine FamilyDURAMAX V8 DIESEL
    Drivetrain4WD
    Shock PositionFront
    Body StyleStandard Cab Pickup
    Application NotesPERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK; Lift: 4-6, Not For Use With Lift Kits That Change OE Mounts
    Engine VIN CodeY
    RegionUSA
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelLT
    Beginning Year2020
    Ending Year2024
    Engine TypeV8
    Liter6.6
    CID403
    CC6599
    Engine Size6.6L/403
    Engine FamilyDURAMAX V8 DIESEL
    DrivetrainRWD
    Shock PositionFront
    Body StyleCrew Cab Pickup
    Application NotesPERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK; Lift: 4-6, Not For Use With Lift Kits That Change OE Mounts
    Engine VIN CodeY
    RegionUSA
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelLT
    Beginning Year2020
    Ending Year2024
    Engine TypeV8
    Liter6.6
    CID403
    CC6599
    Engine Size6.6L/403
    Engine FamilyDURAMAX V8 DIESEL
    DrivetrainRWD
    Shock PositionFront
    Body StyleExtended Cab Pickup
    Application NotesPERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK; Lift: 4-6, Not For Use With Lift Kits That Change OE Mounts
    Engine VIN CodeY
    RegionUSA
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelLT
    Beginning Year2020
    Ending Year2024
    Engine TypeV8
    Liter6.6
    CID403
    CC6599
    Engine Size6.6L/403
    Engine FamilyDURAMAX V8 DIESEL
    DrivetrainRWD
    Shock PositionFront
    Body StyleStandard Cab Pickup
    Application NotesPERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK; Lift: 4-6, Not For Use With Lift Kits That Change OE Mounts
    Engine VIN CodeY
    RegionUSA
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelLTZ
    Beginning Year2020
    Ending Year2024
    Engine TypeV8
    Liter6.6
    CID401
    CC6571
    Engine Size6.6L/401
    Engine FamilyChevy small block Gen V
    Drivetrain4WD
    Shock PositionFront
    Body StyleCrew Cab Pickup
    Application NotesPERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK; Lift: 4-6, Not For Use With Lift Kits That Change OE Mounts
    Engine VIN Code7
    RegionUSA
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelLTZ
    Beginning Year2020
    Ending Year2024
    Engine TypeV8
    Liter6.6
    CID401
    CC6571
    Engine Size6.6L/401
    Engine FamilyChevy small block Gen V
    Drivetrain4WD
    Shock PositionFront
    Body StyleExtended Cab Pickup
    Application NotesPERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK; Lift: 4-6, Not For Use With Lift Kits That Change OE Mounts
    Engine VIN Code7
    RegionUSA
  • MakeCHEVROLET
    ModelSILVERADO 2500 HD
    SubmodelLTZ
    Beginning Year2020
    Ending Year2024
    Engine TypeV8
    Liter6.6
    CID401
    CC6571
    Engine Size6.6L/401
    Engine FamilyChevy small block Gen V
    DrivetrainRWD
    Shock PositionFront
    Body StyleCrew Cab Pickup
    Application NotesPERFORMANCE SERIES 2.5 SMOOTH BODY IFP HTO SHOCK; Lift: 4-6, Not For Use With Lift Kits That Change OE Mounts
    Engine VIN Code7
    RegionUSA

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