Installing Monkey Bars on 07 FLHX, replacing bushings with poly bushings. Do I drive the metal sleeve in the old bushings out to remove the old bushings. Tried prying the old bushings out but no luck.

 

If it's the factory 3 piece bushing, 2 washers and a spacer, yes drive the spacer out. Shouldn't take more than a few taps. Spray some liquid wrench or thrust on first if you want and let it sit for a few beers, they should come right out. Then just pull the bushings out.