This sleeve will easily change Camber and/or Caster 1.25° for vehicles equipped with DANA 44 or GM 10 bolt axles. Installation requires removal of the upper ball joint stud nut. Break the taper free between the stud and sleeve, determine the change needed and replace the existing sleeve with the correct one. SPC 4169 spanner socket required for sleeve removal. Rotate sleeve to further fine tune Camber/Caster adjustment.