How to locate where to drill the hole for mounting the housing in the side sliding door.
As far as the left to right alignment it is most important to know where the inside door edge lands when the door is shut.
You can locate this by closing the sliding door and
from the inside pull back the rubber weather strip to gain access to see the door edge.
Next open the door to view your line indicating where the door’s edge is on the "C" pillar.
With the door closed use your marker to draw a short line on the "C" pillar indicating the door edge.
Once you know where the door edge is you can align the strike plate to fit between the marked line and the outside edge of the “C” pillar.
It should be approximately 1/2” from the line’s edge.
Once you find a suitable spot trace the inside square opening and both mounting holes.
Then on the “C” Pillar mark the distance from line to center of hole using paper or the strike plate bracket itself as a template. Keep in mind you will not drill into the “C” pillar until after you have mounted the housing into the Sliding Door.
Now apply the template to the sliding door’s edge to find the center by aligning the mark on the template from the edge of the door as shown. You will want to keep the top of the square hole at approximately the same height as where you marked it on the “C” pillar. After you mark the center of the square hole place the strike plate in a vertical position and using the market outline the square opening and mounting holes.
You are now ready to mount your housing. Next follow the directions of the marking gum to mark where the strike plate will be located.
The alignment of the bolt engaging into the strike plate should now be spot-on.