Power steering gear box valve leak

Questions for the group,

My 1967 Dart power steering box is leaking between the box and valve. I’ve researched here, and found that it’s probably a couple o-rings gone bad. Seems as though it’s a common issue or so. Question is... when I take the valve off, are there springs or valves that needs to be watched for as I pull it off? I’ve read I need to mark the valves location to make the adjusting that much easier. Any help would be great.

Also. Have a little play in the steering wheel while driving. I’ve replaced everything but the box. Is the box semi adjustable to tighten the play at all?

Thanks in advance. Oh and....Cheers!