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BIG BORE XD® Steering System – Ford Super Duty (2018–2025)

BIG BORE XD® Steering System – Ford Super Duty (2018–2025)

$1,950.00
$1,950.00
Sale Out of Stock
Shipping calculated at checkout.

Part Number: SG756R

When you’ve got a Ford F-450 or F-550 Super Duty loaded down with gear, oversized tires, or a job to do, factory steering just doesn’t cut it. PSC’s BIG BORE XD line is built to handle the weight, the terrain, and the abuse—without making you fight the wheel.

Whether you’re looking for a Cylinder Assist upgrade or a full DDS® system, these kits are made for trucks that work hard and steer harder.

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PSC TRAIL SCORE

3/5

Weekend Warrior

Balanced for street and moderate trails—think mild rock and mud.

About:About:

Why you’ll love it

  • Real Control: Say goodbye to steering shake and hello to smoother handling—even with big tires and heavy loads.
  • Less Effort: Tuned valving and assist tech make steering easier, especially on lifted or converted rigs.
  • Built for the Long Haul: Heavy-duty parts that hold up to off-road abuse, towing, and fleet use.
  • No Guesswork: Bolt-on fitment with everything included. No welding, no chasing parts.

Tech InfoTech Info

Heads‑up for installers

  • Requires factory Dana 60 front axle 
  • 100% bolt-on with included brackets and hardware 
  • DDS system includes integrated skid plate and offset clamp for OEM tie-rod

Fitment

  • F-550 Super Duty 4WD: 2018–2025 
  • F-450 Super Duty 4WD: 2018–2022 (Factory Dana 60 front axle required)

Use it with

  • Oversized tires
  • Lift kits
  • High-GVW conversions
  • Off-road, tow, and fleet builds

Ideal for

  • Off-roaders and overlanders 
  • Tow rigs and haulers 
  • First responder and commercial fleet trucks 
  • Builders who want steering that works as hard as the truck does

Specs

  • BIG BORE XD Steering Gear with PSC Tuned Valving
  • DDS Through-Shaft Dynamic Damping Stabilizer (DDS System only)
  • Pre-Assembled Hoses with High-Heat Fire Sleeves
  • PSC Billet Aluminum Ultra Flow Cylinder Assist Tower
  • Integrated Skid Plate System (DDS System only) 
  • Offset DDS Clamp for OEM Tie-Rod
  • 100% New Components – No Core Charge

What’s included

BIG BORE XD Cylinder Assist Steering Gear – Ford F-550 Super Duty (2018–2024) 

  • BIG BORE XD Gear with PSC Tuned Valving 
  • Cylinder Assist Tower 
  • Pre-Assembled Hoses 
  • Mounting Brackets and Hardware 

BIG BORE XD DDS Steering System – Ford F-450/F-550 Super Duty (2018–2025) 

  • BIG BORE XD Gear with PSC Tuned Valving 
  • DDS Through-Shaft Stabilizer 
  • Cylinder Assist Tower 
  • Pre-Assembled Hoses with Fire Sleeves 
  • Integrated Skid Plate 
  • Offset DDS Clamp 
  • Mounting Brackets and Hardware 

SupportSupport

Install Instructions

Installation Video

Installation Video Thumbnail

OEM Cross Reference

  • Ford F-550 Direct Replacement - SG756R
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