Upper A frame question

[kerber63]

I don't think there will be enough clearance to slide a new rubber seal on the shaft through the control arm. I would take the upper arm off and replace the whole shaft (unless it's been recently done). New shaft kits are pretty inexpensive. Use lots of penetrating fluid on the steel bushings, if they're rusted in and you wipe out the threads you might be looking at replacing the control arm too.