UMI Performance 82-92 GM F-Body Spherical Caster/Camber PlatesUMIs heavy duty caster and camber plates allow you to make alignment changes that are not permitted with the factory strut mounts. These heavy duty strut mounts are fully TIG welded using steel and feature a chromoly Teflon lined spherical bearing. The chromoly spherical bearing replaces the factory rubber strut mount bushing. The spherical bearing features a Teflon race which keeps the bearing lubricated and noise free. The UMI strut mounts feature