My goal is to have these faces scaled down so it's symmetrical, any help? It should be a knob just for making clear my objective.
Set your Transformation Orientation to 'Normal', your Pivot to 'Individual Origins', and then perform a scale in the Normal space using either SXX or SYY.. you'll be able to see the direction of the constraint .. I can't tell which it will be from this illustration. (Or if you want to make the extrusions shallower, that would be a translation..GZZ)