Rear control arm bushings upper install

I just rebuilt my diff. My upper control arm bushings were shot. Got the old ones out. Both of them were centered on the top of the diff. I got the new ones from ford and looking at them there is no indent as to where they stop other than at the very end there is a sholder. So did the old ones move. or do i need to try to center them when i reinstall. This is the whole bushing and housing. the old ones looked like this when i took them out.

l=l l= so is it like that or is it

ll l== like this when installed

if it needs to be centered how will i know when to quit..

also anyone else who is doing this if your not going for the poly bushings get them from ford spend a day running to the parts houses and only getting the wrong parts. sorry for the crude pics its late.

thanks guys

thanks guys will do. I just wanted to be sure that they didnt somehow move or someone skrewed up prior.