Replacing Shifter Bushings

[TheQuicksilver]

So, I thought I knew what I was doing here. Turns out no, that's not the case. Been having trouble shifting from 2nd to 3rd, and all the advice I've heard and read says to replace the bushings. So, I ordered a pair of these:
http://www.classicparts.com/1947-59-...ctinfo/91-061/


Anyway, my trouble is, where exactly are these meant to go? I'm not seeing anywhere in my linkage currently that these would make sense, nor anywhere that they'd even make a difference in the problem. Any help much obliged.