Fox 2.5 Performance IFP HTO Front & Rear Shock Kit | 2017-2026 Ford F-250/F-350 Super Duty 2WD/4WD | 4-6 in Lift
Shocks only
$1,387.80
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Fox 2.5 Performance IFP HTO Front & Rear Shock Kit | 2017-2026 Ford F-250/F-350 Super Duty 2WD/4WD | 4-6 in Lift
$1,387.80
Free shipping over $200. Lower 48, no code needed. 30-day returns.
Good to know before you buy
Fits
- 2017-2026 Ford F-250/F-350 Super Duty 2WD/4WD with a 4 to 6 in lift kit (4 to 6 in front, 4 to 6 in rear)
Does not fit: stock or leveled trucks, lifts under 4 in, Tremor, factory lift packages
Why this kit
The step up from the Fox 2.0 for a lifted Super Duty without going to a remote reservoir. The 2.5 Performance Series IFP HTO uses a 2.5 in body with a larger piston and much more oil, so it runs cooler and holds its damping longer on a heavy truck than a 2.0 can, while staying a simple bolt-in with no reservoir to mount. Two 987-24-020 fronts and two 987-24-021 rears, both sized for 4 to 6 in of lift, so a tall truck on 35s or 37s stops wallowing over dips and keeps its composure on washboard with a trailer on. FOX sells them individually; this kit puts the correct four in one order.
At a glance
| Kit contents | 2 front shocks + 2 rear shocks (one complete truck) |
|---|---|
| Front | Fox 2.5 Performance IFP HTO 987-24-020, for 4 to 6 in front lift |
| Rear | Fox 2.5 Performance IFP HTO 987-24-021, for 4 to 6 in rear lift |
| Design | 2.5 in aluminum body, internal floating piston, high-temp oil, 7/8 in hard chrome shaft |
| Drivetrain | 2WD and 4WD |
| Steering stabilizer option | Add one Fox 2.0 Performance IFP steering stabilizer 985-24-001 with the selector above |
| Warranty | FOX limited lifetime warranty (Performance Series purchased after 3/30/2025) |
What is in the box
- 2 x Fox 2.5 Performance Series IFP HTO front shock, part number 987-24-020
- 2 x Fox 2.5 Performance Series IFP HTO rear shock, part number 987-24-021
- Optional: 1 x Fox 2.0 Performance Series IFP steering stabilizer, part number 985-24-001, when selected
- Bushings, washers and hardware. Factory or lift kit mounting bolts are reused
Questions
2.5 HTO or 2.0 IFP?
Same FOX valving philosophy. The 2.5 has a larger body and piston and roughly 50 percent more oil, so it fades less on long rough roads and under heavy loads. If the truck is a daily driver that occasionally tows, the 2.0 4-5 in kit is the value pick. If it works hard every week or sees real dirt, the 2.5.
Should I add the steering stabilizer?
On a lifted truck with 35s or 37s, almost always yes. The 985-24-001 is a 2.0 IFP damper on the drag link that bolts to the factory stabilizer mounts in about 20 minutes and fits every 2017-2026 F-250 and F-350 at any lift height. Pick "Shocks + steering stabilizer" above to add one to the order.
Will the fronts clear my lift kit's brackets?
The 2.5 body is a half inch larger in diameter than the 2.0. FOX lists it for the common 4-6 in Super Duty kits; if your kit uses a tight-fitting front shock bracket, check clearance around the lower mount before ordering.
How long does installation take?
Rears are 20 to 30 minutes per side. Fronts on the solid axle are a bolt-in shock, about 30 to 45 minutes per side, no spring compressor needed.
What is the warranty?
FOX covers 2.0 and 2.5 Performance Series IFP shocks purchased after 3/30/2025 with a limited lifetime warranty against defects, to the original retail owner through the original place of purchase. Keep your Hannah Suspension order confirmation.
About FOX
FOX Factory has built racing and off-road dampers since 1974 and supplies factory shocks for the Ford Raptor, Ram TRX and Chevy ZR2. The Performance Series brings that race-developed piston and valving to a bolt-on truck shock. Hannah Suspension ships genuine FOX parts with full factory warranty.