Are aftermarket upper control arms required on the 2008 - 2019 LC200 systems?

No, aftermarket up control arms are not required on 08-19 Toyota LC200. The LC200 UCA’s provide enough alignment adjustment to set the vehicle within the factory alignment spec range. Lifting the vehicle over 2.5” on some vehicles the stock upper control arms have difficulty getting caster correctly within the factory recommended range. Vehicle set with less than 2.5” of lift can be aligned using the factory upper control arm. For more information contact ICON tech-support (951) 689-ICON.