Toyota Tacoma 05-On Adjustable Upper Control ArmsPSR's Toyota Tacoma Adjustable Upper Control Arms are without a doubt the best replacement arm on the market. The stand out feature is the industry first 360 degree rubber bush, to explain the concept, firstly rubber is the best option for the inner pivot bush in a UCA but it has limitations, this limitation is due to standard manufacturing techniques where the bush is bonded to the outer housing and inner crush tube. When rotated past its yield of