Bushing
Easy as anything, this is how we would do at the dealership and this is how I still do it. Stick a big heavy screwdriver or similiar into the center hole of the bushing from the front and just pry / twist down wards and it will pop out, doesn't matter what happens to the old, you should be throwing it away once you are done. Use a piece of heavy ready rod ( has to fit thru center hole of bushing ) with either large sockets and washers or a piece of pipe and use that to draw the new bushing in, use some sort of lubricant to help slide the new one in. I use a producr=t from Wurth which is a silicone paste, works great on all things rubber ( door seals, grommets etc. )
Should only take about 15 min a side once the rod is out.
Have fun
Thanks, Rick