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2014–2026 Ram 2500/3500 Adjustable Four-Link Conversion Kit with Face Plates, 4–10 in. Lift
Upgrade your suspension for better geometry, stronger control, and more confident driving.
Take your 2014–2026 Ram 2500 or 3500 to the next level with an adjustable four-link conversion kit designed for lifted trucks. This system helps restore axle positioning, improve caster adjustment, reduce tire rubbing, and deliver more controlled suspension movement on the street or trail.
Key Features
- Adjustable control arms: Fine-tune caster angle and axle centering for your specific build.
- Face-plate construction: Built with steel face plates for a strong, durable conversion setup.
- 4–10 inch lift compatibility: Designed for lifted Ram 2500 and 3500 trucks, with at least 4 inches of lift required.
- Reduced tire rubbing: Improve clearance and steering behavior when your suspension is properly adjusted.
- Polyurethane bushings: Durable, compliant, and built for long-term street and off-road use.
- Custom finish options: Choose raw metal for custom painting or satin black with additional color options available.
- Apoc Industries quality: Built for enthusiasts who expect their suspension to work as hard as their truck.
What’s Included
- 2 upper control arms with steel face plates
- 2 lower control arms with steel face plates
- Four-link conversion bracket
- Heavy-duty polyurethane bushings
- DOM tubing with bushing ends
- Mostly factory hardware
- Grease fittings for extended service life
Installation Details
- Install time: Approximately 3–4 hours
- Tools: Basic hand tools
- Support: Jack and jack stands
- After installation: A professional alignment is recommended
Important: This kit requires at least 4 inches of lift. Adjust the control arms to match your lift height for proper suspension geometry. If you are unsure of your exact lift measurement, confirm it with your lift kit manufacturer before ordering.
Fitment
Designed for 2014–2026 Ram 2500 and Ram 3500 trucks with 4–10 inches of lift. Confirm your exact truck configuration and lift setup before ordering.
Upgrade your Ram 2500 or 3500 with the adjustability and control your lifted suspension demands.

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.
Component Specs
Compatible with 4" to 12" of lift
Yes
Upper 1.25"-12 Lower 1.25"-12
Ram 4 Link Conversion Kits
Ram Suspension, Redefined
What all comes with a Ram 4 Link Conversion kits?
Complete Kit – Ready to Install:
Engineered 4-Link Conversion for Your Ram
Apoc’s 4-Link Conversion is built for complete suspension control, improved ride quality, and corrected caster angles on lifted trucks. Each kit includes two heavy-duty frame brackets that mount directly into the factory radius arm locations, requiring only one 1/2" hole drilled per side for installation. The kit comes with a full set of extended-length control arms—two uppers and two lowers—fully assembled and ready to install. Lower arms are bent for added tire clearance, allowing smooth articulation and steering with larger tires. Axle-side hardware is reused, keeping the installation clean and straightforward.
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%
Red, White & Built Right
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
RAM 4 link Conversion kit
A: A 4-link conversion replaces the factory radius arm setup, delivering better suspension geometry, improved ride quality, and more precise caster control—especially on lifted trucks. Unlike radius arms that limit articulation and can cause binding, a true 4-link setup allows each control arm to move independently, reducing stress on bushings and increasing flex. The result is smoother handling, better tire contact, and a more stable, confident ride—on the road or under load.hts.
At Apoc Industries, we understand that every suspension change impacts your vehicle’s geometry. That’s why we provide detailed installation instructions, including caster correction measurements tailored to a variety of lift and leveling heights. Whether you’re adding a small leveling kit or a full suspension lift, our guides ensure you have the correct specifications to dial in your alignment for maximum drivability, tire life, and performance.
Taking the guesswork out of your setup means better results — and a better ride..
Yes, you can continue using your factory alignment bolt. Its eccentric design allows for easy fine-tuning of caster angles once the control arms are set to the correct length. This ensures a smooth and precise alignment process, whether you’re adjusting it yourself or having it dialed in by a professional shop.
Our components are engineered to work seamlessly with your existing hardware, saving you time and keeping installation straightforward.
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.
A: No cutting or welding is required. Installation is simple—just drill one 1/2" hole on each side behind the factory radius arm mount. The frame brackets are designed to bolt directly into the stock location, making this a clean and straightforward upgrade.
Technical Resources
Caster Setup Guide
Everything you need to know about caster angle on lifted straight axle trucks — what it is, how to measure it, and how to set it correctly.

What is Caster? A Complete Guide for Lifted Straight Axle Trucks
A deep-dive technical guide explaining caster angle for lifted straight axle trucks — what it is, why it matters, how to measure it, and how to set it correctly with adjustable radius arms or 4-lin...

