It's not bushed.
The bearing inside the rocker is where the Linkage pivots.
Just bolt it on "gut-n-tite".
NOTE: Put the center-stand down / add a rope or other to hold it forwards / get a measurement from axle to somewhere (straight up) on the frame/ place the end of a 3'-4' board under the tire (you can use it as a lever) / remove the bolts / use the lever to raise the wheel slightly and remove the Links / raise it more and install the Muzzy links / install and tighten the bolts / re measure from axle to (the same place) on the frame /.
"Mission Complete"
Lastly; Subtract the first measurement from the second measurement to determine the amount of drop (please report the numbers here).
Ride safe, Ted