Product description: Designed with added caster to aid in retaining factory alignment specs when aftermarket lift kits are installed. This reduces the darting or wandering in the vehicle's steering when 2.5"-3" lift kits
CNC machined tapered spindle adapters convert the factory ball joint to a 1" uniball for added component strength & maximum wheel travel.
Includes 1" I.D. uniballs that feature a heat treated stainless steel ball & heat treated stainless steel
JS4X4