2003–2024 Toyota 4Runner Apoc Adjustable Trailing Arms for – Johnny Joint Off-Road Suspension Upgrade
2003–2024 Toyota 4Runner Apoc Adjustable Trailing Arms | Johnny Joint Off-Road Upgrade
Standard poly bushing trailing arms handle mild lifts and street driving just fine. For serious wheel travel, bigger tires, and aggressive trail use, bushing bind limits articulation and accelerates wear. The Apoc Johnny Joint Trailing Arms replace the bushing ends with Currie RockJock Johnny Joint flex joints — full ball-and-socket articulation that moves freely at full droop and full compression, eliminating bind and lasting longer in demanding applications.
Fits 2003–2024 Toyota 4Runner (4th and 5th gen, 4WD). Includes upper and lower arms. Built in the USA.
Why Johnny Joints Over Poly Bushings?
- Currie RockJock Johnny Joint Flex Joints: Full-articulation ball-and-socket design eliminates bushing bind at maximum suspension travel.
- Pinion Angle Correction: Fully adjustable to restore proper driveline geometry at your lift height.
- Axle Re-Centering: Dial in proper rear axle position for correct suspension geometry.
- DOM Tubing: Heavy-wall construction for maximum strength under hard off-road use.
- Grease Fittings: Serviceable joints for long-term reliability in demanding conditions.
- USA-Made: Built by Apoc Industries.
What's Included
- 2x Upper trailing arms (Johnny Joint ends)
- 2x Lower trailing arms (Johnny Joint ends)
- Currie RockJock Johnny Joint flex joints pre-installed
- Grease fittings
Installation
- Est. Install Time: 3–4 hours
- Tools Required: Basic hand tools, jack, jack stands
- Set arm length to match lift height before tightening jam nuts
- Alignment recommended after installation
Fitment
- 2003–2024 Toyota 4Runner (4th and 5th gen, 4WD, solid rear axle)
- Lift Range: Stock to 6"
- Does NOT fit: 2WD models
Complete Your 4Runner Build
- 2003–2024 4Runner Standard Poly Bushing Trailing Arms — street-oriented poly bushing version
- Rear Adjustable Track Bar — re-center the rear axle laterally
- Track Bar Hardware Kit — fresh Class 10.9 hardware
- Apoc Build Blog — Toyota suspension install guides
Built Right. Backed Right.
Our crew’s on call Monday–Friday, 9–5 EST. Hit us up at 865-983-5004 — real support, done right.
Product specifications
Fits factory brackets, no cutting required
Stock height upto 6" lift
PTMEG Polyurethane 91 Durometer
Yes, adjustable from stock to +2.5".
Strength. Adjustability. Confidence.
Toyota Rear Trialing Arm Kits
Built for Your Toyota
What all comes with a Toyota control arm kits?
Complete Kit – Ready to Install:
Each kit comes as a full set of four control arms — including two upper arms and two lower arms — fully assembled and ready for installation. You can reuse your factory hardware for mounting, or upgrade to new hardware if it is included or added to your order. Our goal is to make your installation as smooth and hassle-free as possible.
Premium Bushings – Built for Life:
Apoc Industries backs our bushings with a Lifetime Warranty for lasting confidence. We use only the highest quality polyurethane (PTMEG-based) in all Apoc products.
PTMEG polyurethane offers superior articulation and a firmer, more responsive feel — without the harshness commonly found in solid joints like heims or flex joints.
These bushings are ideal for daily driving while providing excellent durability and performance for moderate off-road use.
Adjustable Length for Precise Handling:
Apoc control arm kits are designed with flexibility in mind. They are stock length when fully collapsed and up to 2.5 inches longer when fully extended, giving you plenty of adjustability to fine-tune your truck’s suspension geometry and handling. Whether you’re leveling, lifting, or optimizing alignment, our arms provide the range needed for a perfect setup.
100%
Made In America!
Lifetime Warranty Polyurethane Bushings
Built to Last, Easy to Rebuild
Apoc Industries' high-performance polyurethane bushings are backed by a lifetime warranty and engineered for durability you can count on. Easily rebuildable with basic tools, they deliver a firm, responsive ride without the hassle—made for daily drivers and built for the long haul.
Before
After
FAQ'S
Toyota Adjustable control Arms
A: Yes. All Apoc Industries Toyota trailing arms include integrated brake line brackets, ensuring a secure, factory-style fit. No zip ties or guesswork—just clean, reliable cable routing right out of the box.
A: Absolutely. Our trailing arms are fully adjustable to accommodate stock height up to 6" of lift, allowing you to dial in proper axle placement and suspension geometry.
We supply instruction and resources for establishing correct lengths.
A: Yes. Apoc trailing arms are designed to work seamlessly with most aftermarket lift kits, and performance shocks used on lifted Toyota trucks and SUVs
For PTMEG (polytetramethylene ether glycol) polyurethane bushings, the best grease is a silicone-based lubricant with PTFE (polytetrafluoroethylene) additives. Here’s why and what to consider:
Why Silicone-Based with PTFE?
: PTMEG polyurethane is resistant to petroleum-based products, but silicone-based grease is preferred as it won’t degrade the material and is explicitly recommended for polyurethane bushings.Tackiness
: PTFE additives lower the coefficient of friction and are waterproof, ensuring long-lasting lubrication and quiet operation.
: Silicone-based grease repels water, protecting bushings from corrosion and maintaining performance in wet conditions.
Lifetime Warranty
Custom Polyurethane Bushings
Built for performance and practicality, our custom polyurethane bushings deliver a firmer, more responsive suspension feel while still allowing enough flex for a comfortable ride. Designed with DIY rebuilds in mind, these bushings can be easily serviced at home using basic hand tools—no press required. Durable, reliable, and user-friendly, they’re made to enhance handling and stand up to long-term use without sacrificing everyday drivability.
Presicion Fit
Instead of using a one-size-fits-all approach, Apoc meticulously machines each arm to fit individual vehicles using precise tolerances and factory specifications. This guarantees a perfect and lasting fit, unlike other companies that rely on shims and generic components. Trust the expertise and quality of Apoc for your vehicle's needs.
Serviceable 1/4"-28 Grease Zerks for Easy Maintenance
Our bushings are equipped with 1/4"-28 grease zerks for easy maintenance and long service life. These fittings are a common size, making them easy to service or replace with standard parts from any auto parts store. Designed for convenience, they allow quick re-greasing without disassembly to keep your suspension performing at its best.
Extra Thick tubing
Apoc opts for thick wall tubing, which is significantly stronger than stock and one of the toughest on the market.