Bergman Auto Craft Delrin Bushings and Pivot Pin Pkg Special use code BAC10

Let’s revive this thread.. I have new qa1 lower control arms on my 72 dart. Can I simply clean out the rubber bushing and leave the sleeve in place in the control arm and install the Delrins.
Or do I need to remove the bushing and sleeve in the qa1 and install the delrin bushing into the lca without a sleeve..