~ Strong and light weight forged aluminum arm with copper anodizing ~ Forged steel rod ends with clamping adjustments ~ PTFE lined, low torque, maintenance free spherical bearings ~ Removable CrMo taper bolted under the outer joint is for use with the OEM knuckle & allows this arm to be used by itself, however this arm is an inseperable companion for our roll center corrected forged aluminum drop knuckle. Our knuckle has a flat bottom bearing spindle that extends up out of its structure to allow very small tire clearance since we moved the hub up. Adjustable to -25mm with jam nuts removed & rod ends cut or +10mm within the OEM strut tower space.