Replace your weak OEM ball joints with these robust 300M replacements.  Tests prove our 300M ball joints are 3x stronger than OEM, and over 2.5x stronger than other aftermarket options! Designed to be regreasable and can be adjusted for wear! These ball joints are manufactured in the USA, and are backed by a lifetime warranty against breakage! Warranty does not cover the boot or component wear.Includes replacement snap ring. Designed to reuse OEM boots.  New boots not included.  Required boot RCV install tool CLICK HERE.***Sold Individually***Fits all X3 models.