Linkage Adjustment for Neutral Safety Switch?

Thanks for the advise! Is there a diagram or pic you can post indicating the operation to do this?

Not without knowing your specific linkage configuration, but they are usually at a pivot point in the linkage.
A bolt through a small block that keeps a rod from moving, or some other device related.

These pics show a couple of types.
Even though one is a kickdown rod the adjuster type still can apply to shift linkages.

kickdown.jpg

linkage.jpg