Billet Upper Control Arms

Description The Dirt King Billet Upper Control Arms are precision-machined from 6061 aluminum, offering exceptional strength and a refined appearance. Designed to optimize suspension geometry, these arms allow for increased front lift and suspension travel when paired with Dirt King shocks. Factory control arms often compromise geometry and structural integrity due to excessive articulation at stock joints, but Dirt King arms solve this with improved caster settings and re-engineered pivot angles for better handling and articulation. A key feature of the billet arms is the adjustable inner pivot system, available in two configurations. The maintenance-free Probearing SilentSpin bushings provide superior ride comfort, with a polyurethane outer layer that dampens road noise and a self-lubricating composite core for smooth, quiet operation. We recommend the bushings for optimal on-road and off-road performance, delivering excellent handling with no compromises. Alternatively, the traditional ¾” chromoly rod ends offer a firmer, performance-driven connection for those prioritizing responsiveness and control in demanding off-road conditions. The rod ends also feature threaded adjustment sleeves, allowing precise camber and caster adjustments while the arms remain installed. Both configurations are equipped with heavy-duty Probearing ball joints for long-lasting durability in harsh environments. These billet upper control arms are built for lasting performance and easy installation, making them an excellent upgrade for any vehicle.  Specifications Amount of Lift: Allows for 0-3” of lift Track Width: Stock Maximum Backspacing: 4.75” Minimum Rim Size: 16” Control Arm Material: 6061 aluminum Bushing Option: Probearing SilentSpin (maintenance-free, self-lubricating) Rod End Option: Probearing ¾” chromoly with adjustment sleeve Ball Joints: Heavy-duty Probearing Camber/Caster Adjustability: Yes Rebuildable: Yes (all components are fully rebuildable or replaceable) Warranty: Limited lifetime warranty on arms, 1-year warranty on ball joints and bushings/rod ends Wheel Travel / Lift The Dirt King upper control arms must be paired with aftermarket coilover shocks to lift the vehicle. The Dirt King arms offer maximum down travel compared to the stock upper control arms. These arms are compatible with Dirt King, King, Fox, Bilstein, ADS and Icon coilovers. Do not install these upper control arms with coil spacers paired with extended length aftermarket shocks.  What's Included 2 Billet upper control arms (left and right) Heavy-duty Probearing ball joints (pre-installed) Probearing SilentSpin bushings or ¾” rod ends (based on configuration) Upper control arm bolts Ball joint caps Dirt King sticker pack   Features CAD designed  Precision-machined from 6061 aluminum for strength and durability Improved caster settings for enhanced handling Re-engineered pivot angles for increased articulation Adjustable inner pivot system for camber and caster adjustments Maintenance-free SilentSpin bushings for smooth, quiet operation Optional ¾” chromoly rod ends for firm, performance-driven handling Heavy-duty Probearing ball joints for long-lasting durability Fully rebuildable and replaceable components for easy maintenance Compatible with Dirt King shocks for increased lift and suspension travel   Compatibility 2003-2024 Toyota 4Runner 2WD / 4WD 2007-2014 Toyota FJ Cruiser *This product is designed to pair with OEM and Dirt King parts. Compatibility with other brands must be approved by the respective manufacturer.   Instructions