Dr. KDSS Front KDSS Billet Link

Dr. KDSS Front KDSS Billet Link

What It Is - A billet aluminum replacement for the OEM front KDSS fixed link designed to allow the front sway bar and suspension to cycle more freely without the binding caused by the factory rubber bushing.

This link replaces the OEM passenger-side fixed link and upgrades it with a fully greaseable performance bushing system built for real off-road use.

Why This Exists - The OEM front KDSS link uses a large rubber bushing that is torqued to 110ft-lbs at ride height.

Once torqued, that bushing is essentially locked into position. As the suspension cycles:

• The bushing resists rotation
• Tension builds in the link
• The suspension is forced to deflect instead of moving freely
  

If you’ve ever disconnected your sway bar and tried rotating the OEM link by hand, you’ve probably noticed it barely moves.

For drivers who want their suspension functioning at its full potential, that restriction becomes a limiting factor. This billet link removes that bind.

What It Does

• Eliminates restriction from the OEM rubber bushing
• Allows smoother front suspension articulation
• Improves sway bar cycling under load
• Reduces stored tension during suspension movement
• Maintains proper KDSS system function
• Adds a greaseable, serviceable pivot point
• Provides an integrated pilot hole for optional safety wire
  

Real-World Development

This product was under development for over 3 years. It has accumulated over 25,000 miles of hard use across:

• Baja race support
• Baja tours
• SoCal high desert
• Trail and desert environments
  

This is field-tested performance — not theoretical engineering.

Design & Materials

• CNC-machined from thick 6061 aircraft-grade billet aluminum
• Anodized in Southern California
• Fully greaseable Delrin bushing system
• Integrated pilot hole for optional safety wire
• Overbuilt for real off-road abuse
  

The Delrin bushing allows controlled rotation without the binding of rubber, while remaining serviceable and durable.

Dr. KDSS recommends marine grease or high-temperature performance grease.

Torque Specs

Top main bolt (link to frame): 110 ft-lbs, use Loctite or safety wire (recommended)

Vertical M12 sway bar bolts: 85 ft-lbs, no Loctite required (stover nuts included)

Mark bolts after torque for visual inspection.

Install Notes

Remove front skid plate for maximum clearance, support sway bar with hydraulic floor jack. Unbolt the two vertical sway bar bolts and the top frame bolt, lower sway bar no more than 3/8” and the driver-side KDSS strut will begin to extend. Remove OEM link, install billet link with the zerk fitting facing forward, pilot hole facing forward, and the bevel on sleeve facing inside of frame.

Pre-grease: Outside of sleeve and the inside diameter of Delrin bushing

Before final torque:

• Inject grease until it exits the bushing
• Minor bushing spread during greasing is normal
• It will compress once fully torqued
  

Torque bolts to spec, safety wire recommended for the main bolt.

Do You Need This?

• Serious about suspension performance? Yes
• Wheeling hard? Yes
• Care about full articulation? Yes
• Daily driver that never sees articulation? Probably not — and that’s okay.

Real Talk

This is not a cosmetic upgrade.

It is a performance improvement for drivers who want their front suspension to cycle freely and function without unnecessary restriction from the OEM rubber bushing.

If you’re particular about how your suspension works — this upgrade makes sense.

Fits:

• Toyota 4Runner 2010-2024
• Lexus GX460 2010-2023

What's Included:

• (2) M12 × 1.25 × 50mm bolts
  
• (2) M12 × 1.25 stover locking nuts
  
• (2) M12 washers (used only with older round bushing setups)
  
• All hardware clear zinc coated