Skyjacker 4In SYSTEM 08 F250 4WD GAS - F8401KS-X
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- UPC:
- 803696275147
Fitment not listed for this part yet — call or text 813-535-5801 and we will confirm it for your car.
- Part number
- SKYF8401KS-X
- Manufacturer part number
- F8401KS-X
- UPC
- 803696275147
- Brand
- Skyjacker
- Part type
- Lift Kits
- Freight
- Ships by freight truck (LTL); a phone number is required at checkout
- Prop 65
- ⚠️ WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov
- Special order
- Yes — ordered in for you; allow extra time
- Instructions
- Installation instructions (PDF)
- Lift height
- 4 in.
Installation guide (from Skyjacker)
Hosted by Skyjacker. Follow the maker's instructions and torque specs.
- Box size:
- 12.00 × 12.00 × 22.00 (in)
Complete the job
Read before you buy
If you work hard and play harder outdoors, you need taller tires for ground clearance. Gain ride height and improved ride quality with this 4-inch lift. Add more aggressive 35s off-road tires for more ground clearance then go get down and dirty. Skyjacker's legendary Softride(R) technology engineered processes achieve maximum wheel travel, ride quality and extends the long-lasting life of the coil spring. The process starts with 5160H chromium alloy material, an advanced method of shot pining and a presetting process. This takes any fatigue or stress off the spring and eliminates sagging. Radius arm drop brackets lower the OEM radius arms mounts at the frame to maintain the correct caster specifications for proper alignment. An ultra heavy-duty track bar relocation bracket captures the front crossmember on both sides to prevent movement in this critical high-stress area and to keep the axle centered. The sway bar links realign the front sway bar working angle to achieve maximum sway control. Drop spacers reposition the front bump stops. Front brake line brackets and braided stainless steel brake lines correct and reposition the brake lines. A heavy-duty steering stabilizer relocation bracket corrects and enforces the stabilizer connection. Hydro steering stabilizer included. Softride(R) Technology leaf springs have tapered leafs to distribute loads more evenly and to create more flex at the leaf ends. Teflon(R) wear pads between leafs and bolt style spring clips prevent binding and eliminate friction. Shocks are a key link in-between the chassis and your suspension. Front and rear damper capacity enhanced with ADX 2.0 Adventure Series Remote Reservoir Aluminum Monotube Shocks. ADX 2.0 has a race-inspired full-displaced valving system. Nitrogen charged with Internal Floating Piston Technology = Quickest Shock Reaction Time Ever. Together this complete kit maintains the factory geometry angles, alignment specifications and structural strength.
4 in. Suspension Lift System With ADX 2.0 Remote Reservoir Monotube Shocks.
4in.SYSTEM;08 F250 4WD GAS
- ADX 2.0 Nitrogen Charged\Internal Floating Piston Technology
- Proper Caster Improves Handling With Incredible Ride Quality
- 35s Improve Your Off-Road Stance And Gain Ground Clearance
- Ultra Heavy-duty Track Bar Bracket Keeps The Axle Centered
- ADX 2.0 Has A Race-Inspired Full-Displaced Valving System
- Skyjacker Softride Technology Enhanced Spring Performance
- Bump Stop Spacers Keep Suspension Travel Safely In Check
- Radius Arm Mount Drop Brackets Properly Corrects Caster
- Yields More Lift In The Front For A More Level Stance
- Skyjacker Softride Technology Heightened Leaf Springs
- IFP Technology Prevents Lag/Decline Or Fade/Failure
- ADX 2.0 Has The Quickest Shock Reaction Time Ever
- Clearance Item:
- N
- LTL:
- Y
- MPN:
- F8401KS-X
- Proposition 65:
- Y
- Special Order:
- Y
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Skyjacker
Skyjacker 4In SYSTEM 08 F250 4WD GAS - F8401KS-X
Skyjacker 4In SYSTEM 08 F250 4WD GAS - F8401KS-X FAQ
The maker's installation guide is on this page — see Installation guide under the part details for the step-by-step and the torque figures. Work on level ground with the car properly supported, and torque every fastener to the maker's figure. If the job is beyond your tools, any shop that does this kind of work can fit it.
Yes. Any change in ride height changes the alignment; set it once the kit is on and the truck has been driven a short distance.
The maker states the largest tire the kit is designed to clear; going larger can need trimming or more lift. Wider wheels with less backspacing also change what clears.
Taller lifts change the angles of the driveshaft and CV joints, and kits made for that height include the parts to correct them when needed. A leveling kit that raises the front a small amount usually does not.
A leveling kit raises the front to match the rear and keeps the stock springs and shocks, so the ride stays close to stock. Larger lifts with new springs change the ride more.
Some kits reuse the stock shocks and some include or call for longer ones; the Part details and the maker's guide on this page say which.
Trucks with headlight leveling, adaptive cruise or a forward camera may need those systems re-aimed after the height changes.
Yes — monthly options show right under the Add to Cart button. Affirm, Klarna, PayPal Pay Later and Snap Finance are offered at checkout, and checking what you qualify for does not affect your credit score.
Install and care: lift kits
Before you start
- Read the maker's guide for the tire size it clears and whether longer shocks or driveline parts are called for.
- Book an alignment and, on trucks with cameras or adaptive cruise, a re-aim of those systems.
Do
- Torque every bolt to the maker's figure and re-check after the first drive.
- Align the truck once the height has settled.
Don't
- Don't run a larger tire than the kit is made for without checking the clearance.
- Don't skip the driveline parts the maker says a taller lift needs.
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