

2014–2026 Dodge Ram 2500/3500 CNC Adjustable Four-Link Conversion Kit, 4–12 in. Lift
2014–2026 Dodge Ram 2500/3500 CNC Adjustable Four-Link Conversion Kit, 4–12 in. Lift
Build a stronger front end. Correct your caster. Get more control from your lifted Ram.
Give your lifted 2014–2026 Ram 2500 or 3500 the suspension geometry it needs with an American-made CNC adjustable four-link conversion kit. Designed for trucks running 4–12 inches of lift, this system replaces the factory radius-arm layout with adjustable control arms, precision-cut frame brackets, and durable polyurethane bushings for better suspension movement, caster correction, and ride control.
Built for serious trail rigs, tow rigs, and daily-driven trucks that need stronger, better-controlled front-end geometry.
Why This Four-Link Conversion Stands Out
- CNC-cut frame brackets: Precision-cut and bent in-house for accurate fitment and long-term durability.
- Fully adjustable control arms: Fine-tune suspension geometry and caster for your specific lift height.
- Polyurethane bushings: Quiet, compliant, and long-lasting without noisy heim joints.
- Improved ride control: Helps reduce binding and improves suspension movement on 4–12 inch lift kits.
- American-made construction: Built and fabricated in the USA by Apoc Industries.
- Two finish options: Choose Raw Metal for custom finishing or Satin Black for a clean, durable look.
What You Get
- (4) Adjustable control arms
- (2) CNC-cut frame-side four-link brackets
- Polyurethane bushings
- Grade 8 hardware for the four-link frame connections
- Detailed installation instructions
Installation Details
- Install time: Approximately 3–4 hours
- Installation: No welding required; uses factory frame locations
- Important: One additional hole must be drilled per side for extra frame support
- Tools: Basic hand tools, torque wrench, and a drill
- Required preparation: Factory radius arms must be removed
- After installation: A professional alignment is recommended
Fitment
Designed for 2014–2026 Dodge Ram 2500 and Ram 3500 trucks with a solid front axle and 4–12 inches of lift. Confirm your exact truck configuration and lift setup before ordering.
Choose Your Finish
Raw Metal: Ideal if you plan to paint or powder coat the brackets and arms to match your build.
Satin Black: A clean, durable finish ready to complement your suspension setup.
Ready for Better Front-End Control?
Stop asking a factory radius-arm design to do the work of a serious lifted suspension. Upgrade your Ram with adjustable geometry, stronger brackets, and the control you need to put the power and lift to work.
Apoc Industries four-link conversion kits are built in the USA for enthusiasts who expect their suspension to work as hard as they do.

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
1/4" Steel Plate Welded
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...

