2023 Toyota 4Runner Upper Control Arms

Upper Control Arms for 2023 4Runner

Your 2023 Toyota 4Runner's factory upper control arms weren't designed for lift kits or extended travel. JBA upper control arms restore suspension geometry on lifted vehicles and eliminate the binding that shortens ball joint life, just like the 2021 4Runner control arm does for earlier models. Each arm assembly includes Max 90 Ball Joints CNC-machined from 4140 chromoly steel with 90-degree articulation, EZ Lube Bushings with 8 individual grease ports and pressure relief valves, and all mounting hardware. Compatible with TRD Sport, TRD Off-Road, TRD Pro, and SR5 models running a 0 to 3 inch lift.

Max 90 Ball Joint Components

The Max 90 Ball Joint delivers 90 degrees of articulation compared to 45 degrees in sealed OEM ball joints. This extended travel prevents binding on compression and allows your suspension system to cycle fully without damaging the joint housing. Each ball joint is CNC-machined from 4140 chromoly steel and features a rebuildable design with replaceable boots and studs. When a sealed ball fails on the trail, you replace the entire arm. When a Max 90 wears after years of use, you rebuild the joint for under $40 in parts.

EZ Lube Bushing System

JBA's EZ Lube Bushings feature 8 grease ports with pressure relief valves that purge contamination during service intervals. Each control arm kit includes front and rear bushings pre-installed in the arm assembly. Grease every 3,000 miles or after water crossings to maintain full suspension travel and prevent premature wear. Factory sealed bushings trap dirt and moisture, leading to internal corrosion you can't see until the vehicle starts wandering on the highway.

Installation and Product Specifications

Installation requires basic hand tools and takes 2-3 hours for both front control arms. Each arm assembly arrives with Max 90 Ball Joints installed, bushings pressed, and all mounting hardware included. No additional components or modifications required for TRD models or vehicles with aftermarket lift kits up to 3 inches. Torque specs and detailed instructions ship with every product.

Lift Kit Compatibility

These upper control arms restore caster angle and correct ball joint geometry on 2023 4Runners running 0 to 3 inch lift kits. Without upgraded arms, a lifted 4Runner experiences reduced steering return, premature ball joint wear, and limited suspension travel. JBA arms correct the geometry and add 1.5 inches of usable wheel travel compared to factory arms on a lifted vehicle. Your suspension components work as designed instead of fighting alignment issues created by the lift.

Lifetime Structural Warranty

Every JBA upper control arm is backed by a lifetime structural warranty covering the arm body, welds, and mounting points. Ball joints and bushings are wear items covered for 3 years from purchase. This warranty reflects 20 years of engineering refinement and thousands of arms deployed in jungle fleet operations, desert rock crawls, and daily-driven TRD builds. Reviews from expedition operators running JBA arms in remote environments confirm the durability. If the arm body fails, we replace it. If a ball joint wears out after 60,000 miles of trail use, you rebuild it for the cost of a boot kit and keep running.

Shop JBA upper control arms for your 2023 Toyota 4Runner backed by a lifetime structural warranty and two decades of proven performance.