Strut Rod ressembly - Bushing

It was the one piece bushing that didn't take a sleeve.
What it does is stop the nut from tightening any farther when the two piece bushings are at a certain crush point.
So, if the rod has a shoulder on it that stops the washer from sliding all the way down to the other washer you don't need the sleeve.
Just put it together and tighten to spec while making sure it stays centered in the frame hole, and if yours takes a cotter pin put it in.
If a crush nut no cotter pin hole, so no pin.