Dr KDSS Rear Sway Bar Drop Kit - Upgraded Billet Fixed Link for Toyota 4Runner (2010–2024), Lexus GX460 & Prado 150

Upgrade one of the known weak points in your KDSS-equipped suspension with the KDSS Rear Sway Bar Drop Kit with Upgraded Billet Fixed Link. Designed for serious off-road use, this kit replaces the factory passenger-side fixed KDSS link with a stronger CNC-machined 7075 billet aluminum link while maintaining proper sway bar geometry and suspension performance. Whether you're running extended travel shocks or pushing your vehicle harder on the trail, this upgrade helps protect critical KDSS components from damage.

Features

• Upgraded Billet Fixed Link: Replaces the OEM passenger-side KDSS fixed link with a CNC-machined 7075 aircraft-grade aluminum link designed to resist bending and trail impacts.
• Protects KDSS Components: Helps prevent sway bar misalignment that can put damaging stress on the KDSS hydraulic strut and internal components.
• Maintains Proper Suspension Geometry: Keeps the KDSS strut operating within its OEM range while allowing proper sway bar positioning at full suspension droop.
• Extended Travel Suspension Compatible: Ideal for vehicles running extended-travel rear shocks or lifted suspension setups requiring additional articulation.
• Trail-Ready Construction: Features an anodized black finish, stainless high-misalignment spacers, and a pre-installed ¾" Pro Bearing uniball for durability in harsh off-road conditions.
• Improved Spare Tire Clearance: Allows clearance for up to a 285/70R17 spare tire in the factory spare location.
• Stronger Than OEM Design: Engineered to eliminate a known KDSS failure point when off-roading aggressively.

What’s Included

• (1) 7075 billet fixed KDSS link
• Pre-installed ¾" Pro Bearing uniball with snap ring
• (2) M10 × 1.25 × 60mm flange head bolts
• (2) M10 × 1.25 locking nuts
• (2) Stainless high-misalignment spacers
• (2) Washers (not used on all vehicles). If you have room because you have the round bushing and thinner smaller cap.   Run the washers with the locking nuts.   If you have an updated bushing and bottom cap ( thicker , typically 2018+ ) then no need for washers  

Fitment

• Toyota 4Runner (2010–2024) with KDSS
• Lexus GX460 with KDSS
• Toyota Prado 150 with KDSS

Available Kit Options

Choose the configuration that fits your current setup:

Rear KDSS Drop Spacers (Pair): Traditional KDSS drop solution.
Billet Fixed Link Only: For vehicles already running rear KDSS drop spacers.
Billet Fixed Link + Driver-Side Spacer: Complete upgraded solution for maximum strength and durability.

Important KDSS Note

KDSS drop kits do NOT fix KDSS lean.
KDSS lean is caused by hydraulic imbalance within the KDSS system—not sway bar links, spacers, or suspension geometry.

If you have KDSS lean concerns, proper diagnosis of the KDSS hydraulic system is recommended rather than relying on suspension add-ons.

Benefits

• Prevents OEM link bending: Eliminates a known KDSS weak point.
• Protects KDSS hydraulic strut: Reduces risk of misalignment damage.
• Improves articulation: Allows full rear suspension droop.
• Reduces interference: Helps prevent sway bar and component contact.
• Supports aggressive builds: Ideal for lifted and heavily used off-road vehicles.
• Factory spare compatibility: Maintains spare tire usability with larger sizes.

Installation Notes

• Best installed with vehicle weight on the suspension (tires on ground)
• Basic hand tools required (14mm socket)
• Hydraulic jack recommended to support sway bar during install
• Blue Loctite recommended on select hardware
• Torque specs:
  • Frame-side bolt: 90 ft-lbs
  • Lower hardware: 70 ft-lbs

Tip: If your vehicle has seen corrosion or road salt, apply penetrating oil to hardware before installation to avoid seized bolts.

Summary

If you're pushing your KDSS-equipped 4Runner or GX beyond stock capability, the KDSS Rear Sway Bar Drop Kit with Billet Fixed Link is a smart durability upgrade. By replacing a known failure point with a trail-proven billet solution, this kit helps protect your KDSS system, improve suspension performance, and keep your vehicle ready for tougher terrain.

OEM Failure Example (See Photos Below)

The OEM fixed link is a known weak point.

Hard trail impacts can bend the link, which forces the sway bar out of position. Once that happens, the KDSS shock can be pushed into a bad angle and suffer internal or shaft damage.

This billet link removes that failure point entirely.

Compatibility Notes

• Works only with DRKDSS or Treaty Oak rear drop spacers

• Spacer dimensions must match this system ( 2” spacer) 

• KDSS-equipped vehicles only

• Not compatible with random or unknown spacer brands

Do You Need This Kit?

• Running extended-travel rear shocks? Yes
• Wheeling harder than stock? Yes
• Want to run a 285/70/17 spare in the factory location? Yes
• Mall crawler that never articulates? Probably not — and that’s okay.

Before starting:

• If your vehicle is 2–3+ years old or you live in a high-salt area, soak the bolts with WD-40 or similar penetrating oil a few days before install
  → These bolts are known to seize and break if rushed

Basic Install Overview

1. 1. Support the rear sway bar with a hydraulic floor jack

   2. Unbolt the driver-side KDSS strut bolts and passenger-side fixed link bolts

      • 14mm socket required

   3. If spacers are already installed, only remove the passenger-side bolts. Lower the sway bar to gain clearance.  If you don’t have spacer, you will lower the sway bar until you can get space between sway bar and kdss strut. KDSS strut will need to be fully extended to allow spacer to fit. Jack up the sway bar until busing makes contact with kdss strut  install the hardware for kdss strut side. Torque to 70lbs and use blue loctite.

   4. Remove the OEM fixed link & spacer ( if you have spacers already) and replace with the billet link

      • Torque top frame-side bolt to 90 ft-lbs (blue loctite is recommended) 

   5. Jack the sway bar back into position ( strut will compress) until the bushing on passenger side contacts billet link and install hardware

      • Torque lower hardware to 70 ft-lbs

      • Locking nuts included — no Loctite required on the bolts facing up and down  

   6. Add torque hash marks for quick visual inspection after use