A fine pitch adjuster comprising: a housing ; a wheel gear positioned within the housing and coupled to a ball stud , wherein rotation of the wheel gear provides inward and outward longitudinal translation of the ball stud relative to the housing ; and a clutching worm input drive comprising: an inner drive sleeve having a shaft portion and a head portion , the shaft portion including a plurality of sleeve slots formed therein and a plurality of engagement ribs extending longitudinally and radially therefrom; and an outer worm gear sleeve rotationally mounted at least partially in the housing and having worm gear threads extending radially therefrom, the worm gear threads coupled at least indirectly to the wheel gear , and an inner chamber for receiving the shaft portion therein, the outer worm gear sleeve including a plurality of grooves extending longitudinally along the inner chamber for mating engagement with the plurality of engagement ribs , wherein rotation of the inner drive sleeve provides clutchable engagement with the outer worm gear sleeve to rotate the wheel gear , wherein clutching of the clutchable engagement includes the plurality of engagement ribs moving radially inward by a partial collapse of the shaft portion of the inner drive sleeve . a housing ; a wheel gear positioned within the housing and coupled to a ball stud , wherein rotation of the wheel gear provides inward and outward longitudinal translation of the ball stud relative to the housing ; and a clutching worm input drive comprising: an inner drive sleeve having a shaft portion and a head portion , the shaft portion including a plurality of sleeve slots formed therein and a plurality of engagement ribs extending longitudinally and radially therefrom; and an outer worm gear sleeve rotationally mounted at least partially in the housing and having worm gear threads extending radially therefrom, the worm gear threads coupled at least indirectly to the wheel gear , and an inner chamber for receiving the shaft portion therein, the outer worm gear sleeve including a plurality of grooves extending longitudinally along the inner chamber for mating engagement with the plurality of engagement ribs , wherein rotation of the inner drive sleeve provides clutchable engagement with the outer worm gear sleeve to rotate the wheel gear , an inner drive sleeve having a shaft portion and a head portion , the shaft portion including a plurality of sleeve slots formed therein and a plurality of engagement ribs extending longitudinally and radially therefrom; and an outer worm gear sleeve rotationally mounted at least partially in the housing and having worm gear threads extending radially therefrom, the worm gear threads coupled at least indirectly to the wheel gear , and an inner chamber for receiving the shaft portion therein, the outer worm gear sleeve including a plurality of grooves extending longitudinally along the inner chamber for mating engagement with the plurality of engagement ribs , wherein rotation of the inner drive sleeve provides clutchable engagement with the outer worm gear sleeve to rotate the wheel gear , wherein clutching of the clutchable engagement includes the plurality of engagement ribs moving radially inward by a partial collapse of the shaft portion of the inner drive sleeve . <EOS>