Billet Upper Control Arms

The Dirt King upper control arms for the 4th Gen Tacoma and 6th Gen 4Runner are precision-machined from 6061 aluminum, offering exceptional strength, durability, and a clean billet finish. Engineered specifically for improved Tacoma upper control arms geometry, these UCAs increase caster, enhance articulation, and provide the clearances needed for additional front lift and extended suspension travel when paired with Ride Shocks, Fox Shocks or King Shocks.

A standout feature is the adjustable inner pivot system, available in two configurations:

Probearing SilentSpin bushings — a maintenance-free setup delivering quiet, smooth, and comfortable performance on- and off-road.

¾” chromoly rod ends — a performance-focused option that provides a firmer connection with fully adjustable camber and caster for precise alignment tuning.

Both versions utilize heavy-duty Probearing ball joints for long-term reliability. Built for easy installation and engineered to handle demanding off-road conditions, these Dirt King upper control arms are an excellent upgrade for any 4th Gen Tacoma looking to maximize suspension performance and ride quality.