50″ Bar Universal Antirock Kits
The 50″ Bar universal Antirock sway‑bar category includes kits built around a 50‑inch long torsion bar—perfect for custom 4×4 rigs, rock‑crawlers, tube‑chassis builds, lifted solid‑axle vehicles, or any application where vehicle‑specific bolt-in sway bars are not offered. These kits give builders maximum flexibility to mount, weld, and tune suspension geometry while leveraging the strength and articulation benefits of the Antirock system.To ensure your custom installation follows the correct assembly procedures and technical specifications, please consult our Instruction Manuals.
What’s Included in a 50″ Bar Kit
- 50″ Long Torsion Bar — ~0.850 in. or 1.000 in. diameter, 4340 heat-treated chromoly, providing torsional resistance and durability under heavy loads.
- Weld‑in DOM Mounting Tube & Bushings — 1.75″ O.D. with 0.095″ wall, paired with UHMW bushings for secure mounting and smooth pivoting.
- Sway-Bar Arms — Fabricated Steel or optional Billet Aluminum arms, 18–21 inches, connecting the torsion bar to axle.
- Adjustable Vertical End‑Links — Long-threaded rods with heim-joint ends, trim-able to match lift height and suspension travel.
- Mounting Hardware — Weld-on axle tabs, bolts, washers, and all necessary fasteners for installation (welding required).
Note: This is a universal kit and requires fabrication and welding—it is not a bolt-on solution.
Benefits of the 50″ Universal Antirock Setup
- Maximum Flexibility for Custom Builds — The long torsion bar allows a wide leverage arc, letting builders optimize arm length and link geometry for axle width, lift, and wheel/tire specs.
- Strong, Durable Construction — Made from 4340 heat-treated chromoly, the same material used in competition-grade off-road components, ensuring reliability under repeated articulation and extreme terrain.
- Improved Off-Road Articulation & Traction — Allows solid-axle rigs to flex while providing torsional resistance, keeping tires planted over uneven terrain and improving traction, stability, and ride quality compared to conventional sway bars or disconnected setups.
Typical Use Cases & Build Scenarios
- Custom tube-frame 4×4 builds, rock-buggies, or modified rigs where stock suspension geometry no longer applies.
- Solid-axle vehicles with lift kits, wide axles, non-stock track widths, or large-tire setups where standard sway bars don’t fit or provide adequate articulation.
- Off-road or rock-crawling rigs that require balanced articulation, suspension flex, and consistent traction while maintaining some roll control and stability.These universal kits and professional fabrication support can be found through authorized shops via our Dealer Locator.
- Builders wanting a suspension base that can be tuned—arm length, link length, and bar rate can often be adjusted for load, wheel/tire size, and vehicle use.
Trade-offs & Important Considerations
- Fabrication Required — Welding and custom mounting are necessary; not a plug-and-play kit. Best suited for experienced builders or professional off-road shops.
- On-Road Behavior — Antirock systems typically allow more body roll on pavement, especially on lifted rigs; handling differs from stock sway bars.
- Setup & Tuning Matters — Proper link angles, arm lengths, and bushings are essential. Poor geometry or misalignment can cause binding, premature wear, or sub-optimal performance.
- Balanced Installation Recommended — Dual installation (front + rear) may be needed for consistent suspension behavior on long or heavy rigs.
If you have questions about selecting the right torsion bar diameter or arm configuration for your custom build, please Contact Us to speak with one of our experts.
