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  • Steering kit for Ford F450/F550 with Big Bore XD® Steering gear, DDS® double-ended steering cylinder, mounts, hoses, tire clamp, manifold and hardware on a white background.
  • PSC Ford F550 truck with large off-road tires in Moab, Utah climbing a obstacle with the PSC DDS shown.
  • Close-up of a the PSC F550 front bumper with PIAA lights and the PSC DDS on a grassy field.
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BIG BORE XD® DDS® Steering System – Ford F-450/F-550 Super Duty (2018–2026)

BIG BORE XD® DDS® Steering System – Ford F-450/F-550 Super Duty (2018–2026)

$4,450.00
$4,450.00
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Part Number: SK756

Built for adventure rigs, commercial trucks, and first responder conversions, this DDS® Cylinder Assist Steering Stabilizer Kit is designed specifically for 2018-2026 Ford F-450 and F-550 4WD applications.

When larger tires, added weight, and specialized equipment start pushing a Super Duty beyond its original design, steering performance can suffer. PSC's Dynamic Damping Stabilizer (DDS®) helps reduce steering wheel shake, improve stability, and provide more predictable steering feel on the highway, on rough roads, and in changing driving conditions.

The DDS® uses PSC's through-shaft hydraulic stabilizer design to help control unwanted steering feedback while reducing driver fatigue during long days behind the wheel. Whether your truck is outfitted for overland travel, utility service, emergency response, or a custom vocational build, this system helps deliver the steering control and confidence needed to get the job done.


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About:About:

Why you’ll love it

  • DDS® Dynamic Damping Stabilizer helps reduce steering wheel shake and unwanted steering feedback
  • Helps improve steering stability and overall vehicle control
  • Reduces steering effort on trucks running larger tires and higher-GVW conversions
  • Vehicle-specific fitment for 2018-2025 Ford F450/F550 4WD applications
  • Heavy-duty construction built for demanding work and travel environments
  • Complete kit includes the required mounting hardware and installation instructions
  • Built by people who've been building steering systems for decades and know what works

Tech InfoTech Info

Heads‑up for installers

Professional installation recommended. This system requires proper hydraulic plumbing and setup for Cylinder Assist. Make sure you’ve got the right tools and know-how before diving in.

Fitment

  • Ford F-450 Super Duty 4WD (2018-2026) with Dana 60 front axle
  • Ford F-550 Super Duty 4WD (2018-2026) with Dana 60 front axle

Ideal for

  • Work trucks running larger or oversized tires
  • Heavy towing and hauling applications
  • Commercial, utility, and service truck builds
  • Drivers looking for more steering control under load

Specs

  • BIG BORE XD Cylinder Assist Steering Gear
  • DDS Axle Kit for Dana 60

What’s included

  • CAK756: 2018-2025 Ford F-450/F-550 Dana 60 DDS Axle Kit
  • SG756R: BIG BORE XD Cylinder Assist Steering Gear – Ford F-550 Super Duty (2018–2024)

SupportSupport

Install Instructions

California Prop 65 Warning

California Prop 65 Warning

This product can expose you to chemicals including lead and di (2-ethylhexyl) phthalate, which are known to the State of California to cause cancer, birth defects or other reproductive harm.

For more information, go to www.P65Warnings.ca.gov