what parts are extended on an ND lock?

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Only the chassis components are modified for thicker door applications, the lever and spindle assemblies remain intact.  The following parts may be modified depending on the function of the lock ...
ND -series locks manufactured on or after January 30, 2017 use the following spring cages:Outside - N523-218 - For ALL cylinder options except for JD-YA6, JD-YA7 and JD-MEDInside - N523-222 -...
ND-series locks manufactured before January 30, 2017 used the following spring cages:
On ND-series locks manufactured on or after January 30, 2017:The ND FSIC lever part number is 03-232.  You will need to specify the design and finish.
On ND Series locks manufactuered prior to January 30, 2017:The ND FSIC lever part number was 03-032.  
For ND locks shipping on or after January 30, 2017, the lever and core driver will need to be changed to convert from JD to BD.SFIC lever, 03-200SFIC driver and spacer, 09-774
For ND Locks shipping prior to January 30, 2017:The springcage(s), lever, and core driver will need to be changed.  Depending on the function the components below are required.Outside spring c...
On ND-series locks manufactured on or after January 30, 2017, the following parts are needed to convert the lock from JD to LD:03-231 - Open Cylinder lever (specify design and finish)N523-022 - Tai...