I know what youre talking about. I installed Rogue CAB's into the original "lollipop" bracket. Meaning I pressed out the old bushing and housing out of the lollipop bracket. Then installed the new bushing and housing into that lollipop bracket.
I used a 6-Ton hydraulic press from harbor freight (scary quality stuff, this I know). I pressed out the old housing using a metal plate to go as far as I could. Then lined up the new housing perfectly with the old one inside of the lollipop bracket and pressed old out while pressing new in. I did not use a special tool although I considered fabricating a circular plate to press out the old ones. It probably would have been much easier to use a specialized tool - if you can find a 66mm one. However, it possible without.