Does
82-057 consist of two pieces or one? (Interlock Bracket, Operating/Meeting Stile
82-057) I have the old style three panel sliding doors, and am of the impression that I would need to order Andersen PS 3 Panel Interlock Bracket
82-058 as well. Is that correct? I wish to replace the Interlock, both inside and outside pieces. Also, do I need to replace the Andersen Thumb Latch, 3 Panel Product Code:
82-049 when replacing the Andersen Latch Mechanism, PS 3 Panel part
82-048? The Thumb Latch seems to be in very good working condition. I wanted to understand if there was some inter-dependency with the new parts replacement.