A arm bushing
I use a air chisel to remove, usually pops em right out!
puttin them in, I have a pipe that fits the outer metal of the bushing, and using a manly hammer, (no love taps here!) put them right in! ( I guess you could use a socket, instead of the pipe,?? ) support it on your vice jaws, and presto buick bushing!
good luck,
cruzn57