Locking mechanism broken

Hello, thank you for posting,

Please start by reviewing the style of the 82-086 keyed handle set. This set has a 3-15/16" installation hole spacing from center to center. We also carry the 82-089 non keyed version.

If you also need an internal mortise lock replacement, we will need to see the door open where we can review the original style in the frame. 

Let us know if you have any additional questions!