SKU: 18586295143

Fabtech K2227DL 4 RAD ARM SYS W/ 4.0 & 2.25 17-21 FORD F250/F350 4WD.

Sale price$2314.80 Regular price$2572.00
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Ships within 48 hours · Estimated delivery Jul 26 - Jul 31

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Description

Fabtech K2227DL 4 RAD ARM SYS W/ 4.0 & 2.25 17-21 FORD F250/F350 4WD.Fabtech's 4in Radius Arm system with the Dirt Logic 4. 0 Coilover conversion has been built for the Ford Super Duty to handle the on and offroad demands of the truck enthusiast. This Radius Arm system is a heavy duty upgrade to the factory suspension and will provide additional strength to the vehicle. The heart of this quality system is Fabtech's legendary tubular Radius Arms. The design of these arms comes from Fabtech's racing experience and are

Fabtech's 4in Radius Arm system with the Dirt Logic 4.0 Coilover conversion has been built for the Ford Super Duty to handle the on and offroad demands of the truck enthusiast. This Radius Arm system is a heavy duty upgrade to the factory suspension and will provide additional strength to the vehicle. The heart of this quality system is Fabtech's legendary tubular Radius Arms. The design of these arms comes from Fabtech's racing experience and are built with a tubular structure reinforced by dimple die side plates and heavy gusseting for rugged offroad use. They are superior in strength to the stock stamped arms. A heavy duty Track Bar relocation bracket centers the Super Duty axle under the vehicle and allows for full lock steering of 12.50 wide tires on 5in BS Wheels. The front suspension receives the finest shock upgrade on the market with the Dirt Logic 4.0 Coilover conversion. It will provide outstanding damping capacity offroad with a quality on road ride. This Coilover bolts in place of the factory coil spring without removal of the coil spring bucket. The Dirt Logic is constructed with a stainless steel body for maximum corrosion resistance. It comes with a giant 4in diameter aluminum remote reservoir that mounts horizontally above the Coilover to allow for full compression travel with oversized tires. The rear suspension receives a 5in lift block, extended bump stop brackets and Dirt Logic 2.25 shocks for a balanced ride quality. This 4in Radius Arm system with the Dirt Logic 4.0 Coilovers is the ultimate suspension system for Super Duty owners that want to turn heads and tackle the toughest offroad terrain. System includes a free 5 year 60,000 mile powertrain warranty. Each Fabtech component has been designed with specific features and benefits that create this quality suspension system. For a greater understanding of each these components, please see below.

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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SKU: 18586295143

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4.4 ★★★★★
Based on 16 reviews
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Twins9
Lowell, US
★★★★★ 5
Comfy and Stay Put
Size: Medium, Color: (002) Black / Black / Halo Gray
These socks are honestly great. They’re super thin and light, so once you have them on, you kind of forget they’re even there. No bulky feeling in your shoes at all. The best part is they actually stay on. I hate no-show socks that slide down after five minutes, and these don’t do that. The little grip on the heel really works, so you’re not constantly adjusting them all day. They’re breathable too, which is nice if your feet run warm. They dry fast and don’t get that gross sweaty feeling. And there’s no annoying seam on the toe, so nothing rubs or feels uncomfortable. Basically, they’re just comfy, stay put, and don’t cause problems — which is all I want from socks.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 16, 2026
S
Verified Purchase
swwkennyg
Port Orchard, US
★★★★★ 5
Perfect sucks
Size: Medium, Color: (001) Black / Black / Castlerock
Wonderful socks . The weight is perfect !! These do not slip when in a shoe they stay out !!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
M
Verified Purchase
Monica Alzate
Carnegie, US
★★★★★ 4
Amazing but quality changed
Size: Large, Color: (002) Black / Black / Halo Gray
Love these socks so much, been buying them for about 4 years now!! Not giving them 5 stars anymore because the quality is different and not as good, durable and thick as before.
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Reviewed in the United States on July 10, 2025
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Verified Purchase
Heather260
Los Angeles, US
★★★★★ 5
The best no show socks
The only no show socks I have ever found that do not slide down. These are very comfortable and the extra tab on the back provides comfort by keeping shoes from rubbing the back of your foot. The top of the sock also comes up high enough to cushion the top of your foot all while still remaining hidden while wearing tennis shoes or even with my hey dudes.
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Reviewed in the United States on November 30, 2025
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Verified Purchase
Nick
Whiting, US
★★★★★ 5
Great quality and fast shipping
Size: Medium, Color: (001) Black / Black / Castlerock
These socks are tight but after the first wash and dry , they fit perfect and NEVER slide off , ordered a second pack
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Reviewed in the United States on March 24, 2026

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