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Skyjacker 4.5In KT 21 F150 4WD SPCR ADX

  • Backed by real installs and tuning experience at FAST of West Chester
Low stock! Only 3 left


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Regular price $2,309.53
Sale price $2,309.53 Regular price $2,624.47 You Save $314.94!
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Mixing work and play driving, you need taller tires for ground clearance. Raising the suspension clearance of your F150, gives you room to run larger, more aggressive tires. With Skyjacker's all-in lift kit, you get unparalleled performance with uncompromised strength and maximum clearance. Skyjacker's unique rear crossmember incorporates the driver side sway bar drop bracket for strength and stability. Coupled with a passenger side sway bar drop bracket, the OEM sway bar operates at optimum angles. The pair of sturdy front and rear crossmembers provides a solid mounting point for the OEM lower control arms. A differential skid plate tie the two crossmembers together to create a rigid sub-frame and added protection for vital steering and driveline components. Three separate differential relocation brackets reposition and correct front CV axles and driveshaft angles. Retain your front Ford OEM tuned performance struts by utilizing top mounted strut spacers. Precise engineered 1-piece strut spacers have a specific ‘Pitch and Index' offset to preserve CV extension and to prevent CV axle overextension within the OEM tolerances. Exacting engineered CNC machined ductile iron replacement steering knuckles preserve the OEM track width and maintain proper steering geometry through the travel cycle. Aligns to OEM specifications and works properly with Electric Stability Control (ESC) system. This all-inclusive kit has front and rear brake line relocation brackets, differential vent tube extension, a CNC machined 6061-T6 aluminum front driveshaft spacer, rear driveshaft carrier bearing, cast ductile iron rear blocks with longer Grade 8 U-bolts and lock nuts. Complete with all high-quality grade mounting hardware. Rear damper capacity enhanced with Nitro Shocks. Nitro Shocks feature 150 psi pressurized nitrogen gas, twin-tube construction for quicker response with reliable ride control. Nitro Shocks improve tire contact terrain for controlled performance.

Installation Instructions
  • Front And Rear Crossmembers And Skid Plate - Rigid Sub-frame
  • 1-Piece Strut Spacers Have A Specific Pitch And Index Offset
  • CNC Machined Ductile Iron Knuckles Preserve Oem Track Width
  • Three Separate Diff Brackets Reposition Correct CV Angles
  • Diff Brackets / Driveshaft Spacer Correct Driveshaft Angle
  • Black MAX 30 Percent More Fluid / Maximum Heat Dissipation
  • Knuckles Keep Same Steering Geometry And Turning Radius
  • Black MAX Engineered With Advanced Foam-cell Technology
  • Black MAX Shocks Have 360 Degrees Arc-welded End Mounts
  • Black Max Shocks Have 180 Degrees Directional Mounting
  • Ample Room For 35s With Proper Wheel Offset Spacing

This Part Fits:

Year Make Model Submodel
2021-2022 Ford F-150 King Ranch
2021-2022 Ford F-150 Lariat
2021-2022 Ford F-150 Limited
2021-2022 Ford F-150 Platinum
2021-2022 Ford F-150 Police Responder
2021-2022 Ford F-150 SSV
2021-2022 Ford F-150 XL
2021-2022 Ford F-150 XLT

  • Earn FAST points on this part!
  • Backed by real-world installs
  • FAST WC Team Approved

Skyjacker 4.5In KT 21 F150 4WD SPCR ADX

$2,309.53

Why Drivers Choose FAST of West Chester

  • I can't recommend this place enough. Being able to trust a shop in the performance world is big. The 2hr drive to get there, is worth knowing the job will be done right. Very happy to have found this shop, to
    support my builds going forward.


    Donald Wojnar
  • I recently had the pleasure of working with FAST of West Chester for some performance upgrades on my 2022 WRX, and the experience was nothing short of exceptional. I opted for a Borla S-Type exhaust and Cygnus Coilovers, and the team at FAST nailed the installation, fitment, and setup to a T.


    Adam Cranston
  • The team at FAST are excellence in every way. First, I consulted with Dave on mods for my HPDE track car. He listened and advised me on the best parts & mods to achieve my goals. He was patient & gave me space to research the options presented & worked with me through several changes before we built. Second, the build execution was flawless, proper heat shielding, bracing and poly everywhere. All components worked as advertised.


    Bryce Budd
  • This place has been my go to shop for all things Subaru. From simple service to performance parts and tuning, they have been top notch.


    William Brunell
  • Excellent shop. They installed a Cobb Stage 2 DP and Whiteline Sway bars and end links on my 2013 WRX. The work was done right and clean. The estimate was accurate. They were very knowledgeable, friendly and gave me the straight scoop on exactly what I was getting for the money
    and what I needed to get where I want to be with it. I'd recommend them
    to any car enthusiast.


    Devin Greco
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Does it come with a warranty?

Most products we carry include a manufacturer warranty. Since we work with top performance brands, warranty coverage can vary by product. If you have questions about a specific item, reach out — we’re happy to help.

Do you offer installation help or advice?

Yes — we don’t just sell parts, we install and tune them too. FAST of West Chester is a real performance shop, and we’ve worked hands-on with many of the products we carry. If you have questions about fitment, installs, or building your setup, our team can point you in the right direction.

How fast is shipping?

Many of our products ship the same day or next business day, depending on availability. We work hard to get parts out fast so you can get your build moving without delays.

What’s your return policy?

Returns for exchange or refund are accepted within 30 days of receiving your order. Items must be in new, unused condition and in original packaging. If you have any questions, our team will help make the process easy.

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