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Dynamic Damping Stabilizer® System– Jeep Wrangler JL 4XE (2021–2025)

Dynamic Damping Stabilizer® System– Jeep Wrangler JL 4XE (2021–2025)

$4,663.95
$4,663.95
Sale Out of Stock
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Part Number: SK691PK4-DDS-OE-AX

Axle Type
Tie Rod Type

This kit is built around the way the 4XE delivers power and how that affects steering feel.

The XDR Cylinder Assist gear and DDS® stabilizer keep the front end stable and controlled, especially when torque comes on quickly. It takes the sharp feedback out of the wheel and helps the Jeep stay planted.

This system is designed to correct the drivability issues that come with lifted setups and larger tires. It smooths out the steering, cuts down on constant correction, and makes the Jeep easier to handle overall.

DDS also adds steering torque when you need it, helping turn larger tires in tight trail situations. On longer drives, it reduces fatigue and keeps the steering from feeling busy or exhausting.

Everything is built as a complete system, with a pump package matched specifically for the 4XE. It’s designed to handle real use and install clean with components that work together the way they should.

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About:About:

Why you’ll love it

  • Keeps steering stable when torque comes on quickly
  • Reduces kickback and feedback through the wheel
  • Helps the Jeep track straight with less correction
  • Pump and cooling are matched for the 4XE platform
  • Complete system built to work together

Tech InfoTech Info

Heads‑up for installers

  • EHPS pump requires wiring—plan layout before install
  • Hose routing is important—keep clear of heat and tight bends
  • Alignment check is recommended after installation
  • Some axle kits (TERA60 and Currie 70) require welding
  • Tie rod clamp must match your specific setup

Fitment

Vehicles:

  • 2021–2025 Jeep Wrangler JL 4XE
  • 2021–2025 Jeep Gladiator JT 4XE conversion

Axle Options:

  • Rubicon Dana 44 (OEM)
  • Dana Ultimate 60 (UD60)
  • Teraflex Tera60
  • Currie RockJock 70

Use it with

  • PSC Big Bore XD steering gear upgrades
  • Heavy-duty tie rods and drag links
  • PSC TRU BLUE® Power Steering Fluid
  • Additional cooling for extreme conditions

Ideal for

  • 37–40” tire builds
  • Hybrid JL builds with added weight and instant torque
  • Trail-driven vehicles needing better steering control
  • Drivers looking for a smoother, more predictable steering feel

Specs

  • XDR Cylinder Assist® Steering Gear (SG691R)
  • Dynamic Damping Stabilizer (DDS®)
  • Electric Hydraulic Power Steering (EHPS) System
  • 4XE-specific pump kit (PK4)
  • Axle-specific mounting and hose configurations

What’s included

Box 1:
• SG691R – XDR Cylinder Assist® Steering Gear

Box 2:
• PK4 – EHPS Pump Kit for JL 4XE
o Electric-hydraulic pump
o Cooler kit
o PSC TRU BLUE® power steering fluid
o Flushing oil (where applicable)

Box 3 (Axle-Specific DDS Kit):
One of the following based on selection:
• CAK691-DDS-OE
• CAK691-DDS-OE-MC (MetalCloak option)
• CAK691-DDS-UD60
• CAK691-DDS-TF60
• CAK691-DDS-CE70
Includes:
• DDS stabilizer
• Axle mounting brackets
• Hose kit
• Hardware and rod end components

Box 4 (Tie Rod Mount / Clamp):
Varies by configuration:
• Apex tie rod clamp
• Steer Smarts clamp
• 1.625", 1.75", or 2.0" billet clamps
• Not required with MetalCloak option

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