[Garfield]

You need a press to get the old bushing out and the new bushing in. (At least for the rear one.)

If I recall correctly the "book" time to replace the bushings is 4.1 hours, but it only took my mechanic 2.7.

The "easy" way to do it yourself would be to just get new lower control arms, since they come with new bushings. (Of course I don't know of any with poly bushings.) And you end up with a new ball joint at the same time.

I don't know that there is any difference between them other than color, I opted for black because it was cheaper than red at the time and I really didn't want red. (I paid $41.37 from Amazon on 1/12.)

I considered getting new lower control arms and having a shop just replace the rear bushing and doing the arm swap myself, but decided it was just easier to let my normal mechanic do the whole thing.