Manual column shaft issue

Good Day. I swapped my 1966 Barracuda PS gear for a manual gear box. Column is about 4” short. I can’t figure out how to extend the shaft. I don’t see any nylon shear pins. I also changed to a floor shift so I don’t need that shifter arm. What do I do now?

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That doesn't appear to be a collapsible column, so it won't have shear pins. I think those started being used in 67 or so. You can simply buy an adapter to use it with your manual box, or disassemble it and install a longer shaft.

You can also modify the collar to eliminate the provisions for a column shifter. I just got done doing the one in my 66 Dart - it turned out great.