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Fabtech K2274DL 8″ Radius Arm System With Front Dirt Logic 4.0 Resi Coilovers & Rear Dirt Logic 2.25 Shocks

2011-2016 Ford F-250 4WD
Fabtech K2274DL 8″ Radius Arm System With Front Dirt Logic 4.0 Resi Coilovers & Rear Dirt Logic 2.25 Shocks
5953.17In stock
2011-2016 Ford F-250 4WD

Radius Arm Lift System

  • Brand : Fabtech
  • SKU : BKBNK2274DL
  • Part Number : K2274DL
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Product Details

Designed for 2011-2016 Ford F250 4WD models, Fabtech’s Radius Arm System is built to handle the demanding on-road and off-road requirements of Super Duty enthusiasts. This complete suspension upgrade replaces key factory components to deliver increased strength, improved geometry, and reliable performance when running oversized tires.

At the core of this system are Fabtech’s heavy-duty tubular Radius Arms. Inspired by Fabtech’s race-proven suspension components, these arms feature a tubular structure reinforced with dimple-die side plates and heavy gusseting for maximum durability. This design offers a substantial strength upgrade over the factory stamped radius arms, making them ideal for rugged off-road use.

This system includes the massive Dirt Logic 4.0 Coilover Conversion, delivering outstanding off-road damping capability while maintaining a smooth and controlled highway ride. The coilovers bolt directly into the factory coil spring location without requiring removal of the original coil bucket, ensuring a straightforward installation.

The Dirt Logic 4.0 Coilovers feature a giant 4-inch diameter aluminum remote reservoir mounted horizontally above the coilover, allowing full compression travel even with oversized tires. As the largest and most robust coilover available for the Ford Super Duty platform, it is engineered to withstand the harshest driving conditions.

Premium components combined with properly engineered suspension geometry set this Radius Arm system apart from all other Radius Arm suspensions. This complete suspension system is backed by a free 5-year, 60,000-mile powertrain warranty for added peace of mind.

Our patented Radius Arms feature a full tubular structure strengthened by dimple die side plates with an adjustable alignment cam at the axle to allow caster adjustment. Front spring lift options includes 6 replacement

Radius Arm Lift System; 8 in. Lift; Incl. Front Dirt Logic 4.0 Resi Coilover and Rear Dirt Logic 2.25 Shocks; For Vehicles w/Factory Overloads;;

Unsurpassed Strength And Performance Patent Pending Radius Arms Fully Tubular Structure Dimple Die Side Plates Adjustable Alignment Cam Allows Caster Adjustment
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Fitment

YearsMakeModelDrive
2011-2016FordF-2504WD

Features

  • Radius Arms: Tubular construction reinforced with dimple-die side plates and heavy gusseting delivers superior strength compared to factory stamped arms. Offset design allows full turning radius with 15.50-inch wide tires on 5-inch backspacing wheels. Adjustable alignment cams provide an additional 1.5-2 degrees of caster adjustment, while Fabtech’s proprietary 5 Ton Joints at the frame pivot ensure quiet operation and long service life proven in military applications.
  • Dirt Logic 4.0 Coilover Conversion: Heavy-duty 1/4-inch thick steel brackets utilize the factory coil bucket to mount the massive Dirt Logic 4.0 coilover. Features a 4-inch diameter stainless steel body with a 1.25-inch NitroSteel piston rod for maximum corrosion resistance and durability. Coil springs support the weight of the Super Duty while providing 2 inches of increased wheel travel, and the remote aluminum reservoir dissipates heat for consistent damping in extreme off-road conditions.
  • Track Bar Relocation Bracket: 1/4-inch thick steel bracket repositions the factory track bar to properly center the front axle at the increased ride height. Box-style construction minimizes deflection throughout the suspension travel.
  • Dropped Pitman Arm: Forged steel construction exceeds factory strength specifications and is engineered to work with the factory drag link and Fabtech track bar bracket to maintain proper steering geometry.
  • Front Bump Stop Brackets: Heavy-duty 1/4-inch thick steel brackets extend the factory bump stops to prevent suspension over-cycling. Semi-boxed construction is designed to withstand full compression impacts of the Super Duty platform.
  • Sway Bar Brackets: 1/4-inch thick steel drop brackets reposition the front sway bar to allow full suspension travel without binding at the increased ride height.
  • Brake Line Brackets: Reposition the factory brake lines lower on the frame to accommodate increased suspension travel while keeping the brake system sealed and intact.
  • Steering Stabilizer Brackets: Retain the factory heavy-duty steering stabilizer using reinforced steel brackets and support braces to help reduce tire shimmy.
  • Driveshaft Shim Kit: Allows incremental rear driveline angle adjustment at the carrier bearing on two-piece driveshaft applications to eliminate vibration after lifting.
  • Rear Add-a-Leaf: Single leaf insert adds approximately 1.5 inches of rear lift while maintaining factory ride quality and load capacity.
  • Rear Lift Blocks: Cast iron 5-inch rear lift blocks provide additional lift without altering ride quality or rear load carrying capability.
  • Rear Sway Bar Brackets: Reposition rear sway bar end links to maintain proper sway bar function and prevent binding at the new ride height.
  • Rear U-Bolts: Heavy-duty U-bolts securely attach the rear differential to the vehicle, ensuring long-term strength and reliability.
  • Dirt Logic 2.25 Rear Shocks: Stainless steel body with NitroSteel piston rod provides excellent corrosion resistance, superior ride quality, and consistent damping performance on and off-road.

Components

  • 1 × FTS22139 - Component Box
  • 1 × FTS22105 - Rear Box Kit
  • 1 × FTS835236D - Front Dirt Logic 4.0 Resi Coilover [Driver]
  • 1 × FTS835236P - Front Dirt Logic 4.0 Resi Coilover [Passenger]
  • 2 × FTS810052 - Rear Dirt Logic 2.25 Shock

FRONT DIRT LOGIC 4.0 RESI COILOVER

The Dirt Logic 4.0 provides the ultimate in hardcore offroad dampening capacity with superior highway comfort in a big package. This massive high end shock is designed for full size vehicles that required the biggest and best Coilover shock in a bolt on configuration. Nothing else comes close.

  • 4.0″ OD Stainless Steel Body
  • 3 5/8″ OD Billet Aluminum Piston
  • 1 1/4″ NitroSteel® Black Piston Rod
  • Adjustable Coilover Construction
  • 3/4″ Spherical Ball Mounting Ends
  • 4.0″ OD Aluminum Resi

REAR DIRT LOGIC 2.25 SHOCK

Dirt Logic 2.25’s are designed to replace factory shocks with a larger, more robust configuration. The 2.25 size is what separates it from other replacement take apart shocks for a superior ride, both on and off road. Shocks are pretuned for each Fabtech suspension, accounting for larger tires, providing the finest all around damping.

  • 2.25″ OD Stainless Steel Body
  • 2.0″ OD Billet Aluminum Piston
  • 7/8″ NitroSteel® Black Piston Rod
  • Polyurethane Mounting Ends

Quick Specs

  • Tire Size – 355/65R18 Wheel Size – 18×9.5 w/ 4 3/4in BS w/minor trimming
  • Tire Size – 37/13.50R20 Wheel Size – 20×10 w/ 4 1/2in BS w/minor trimming
  • Part Number : K2274DL

Important Notes

  • California Prop 65 Warning
  • 27. Front drive shaft modification may be required to clear exhaust on gas motors.

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