Our lower arm spacer kit is ideal for people looking to build their own uniball lower control arms or need to replace their worn-out hardware. The spacer kit adapts a 1" uniball to the factory spindle. The spacers are machined from 17-4 stainless steel and have a precision fit taper to mate to the spindle. This product will not work with aftermarket spindles and may not work with other manufacturers lower control arms.