FASS Fabrication Ram Radius Arm
Can I pick up my order or have it installed at your shop?
Can I pick up my order or have it installed at your shop?
Absolutely. We offer local pickup on most products and full professional installation at our shop in Washington, MO. Whether you just want to grab your parts or have our techs handle the install, we’ve got you covered. Give us a quick call at 636-429-7020 or message us to schedule a visit — we’ll make sure the parts are ready when you arrive.
How do I know if this part fits my vehicle?
How do I know if this part fits my vehicle?
Unsure if it’ll fit? No problem — that’s what we’re here for. Send us your vehicle’s year, make, and model, and we’ll verify fitment before you order. We can also point you toward compatible upgrades or supporting parts if needed.
What if I need to return a product or it’s defective?
What if I need to return a product or it’s defective?
Most unused items can be returned within 30 days in their original packaging. Some products are covered by a manufacturer’s warranty as well. If something arrives damaged or doesn’t meet your expectations, just let us know — we’ll help you get it replaced, refunded, or repaired. (Tracking updates are also emailed automatically once your order ships.)
What's the lead time on custom or fabricated parts?
What's the lead time on custom or fabricated parts?
Many of our parts are built to order — especially fabricated or performance components. These can take additional time to produce before shipping. Lead times vary by manufacturer and demand, but we’ll always keep you updated along the way. If you’re working on a tight schedule, reach out before ordering at 636-429-7020 and we’ll confirm current availability or estimated ship dates.
Description
Description
DESCRIPTION
Designed by our lead fabricator, Spencer Ekstam, FASS Fabrication Radius Arms deliver the strength, precision, and premium craftsmanship your RAM suspension deserves.
A lifelong diesel enthusiast, Spencer set out to build a radius arm system that outperforms factory components in every way—better stability, better handling, and a design that looks as good as it performs. After extensive prototyping and real-world testing, the FASS Fabrication Radius Arm System is here.
Engineered in-house using high-grade materials and precision manufacturing, these radius arms provide unmatched durability, improved suspension geometry, and dependable performance on- and off-road.
If you select Custom Color, we’ll contact you after purchase to confirm your powder coat choice.
Key Features
Precision Manufacturing
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Laser-cut and CNC-formed from ¼” mild steel for consistent strength and perfect fitment
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Combination robotic + manual welds for maximum durability
Innovative, High-Strength Design
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Square-profile arm design provides increased weld engagement and structural rigidity
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Multiple weld seams and plug-welds significantly enhance strength and stability compared to traditional round-tube designs
Premium Joint Setup
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Frame Side: 2.5” forged rod end with polyurethane-supported spherical ball — smoother and quieter than Heim joints, with superior longevity
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Axle Side: Two-piece polyurethane bushing with steel sleeve for durability and reduced maintenance
Reinforced & Refined Aesthetics
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Arms and brackets include overlay plates for added strength and a clean, high-end finish
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Built to withstand harsh use while maintaining a show-quality appearance
These radius arms are engineered for performance, longevity, and standout looks—an ideal upgrade for any RAM build that demands higher quality than stock.
All FASS Fabrication products are designed, tested, and built in the USA.
Please allow 1–2 weeks for powder coating and shipping.



