which rubber strut bushing??

My new OME Nitrochargers came with 2 rubber bushings and I know where they go.

My new replacement top hats come with a rubber bushing installed Do I scrap the OME bushing, or pry out the one that came with the top hat?

If I use the OME bushing, it's slightly too large of a diameter to fit snug into the indention in the top hat. If I use the one in the top hat instead, the hole seems to be too small to fit over the rod.

 

Seems this conversation was already had here: And that the middle retainer is part of the new, aftermarket top hat instead of separate as from the factory. I yanked out the rubber bushing that came with the new top hat.