Oh yeah I saw that part also, I will definitely be doing the whole procedure, but I just wanted to make sure I got the spec right, so I guess 21 is right.

Is there any spec for the outter lock nut, or it just really needs to be snugged down?

Sorry for the basic questions, but I haven't pulled these apart before, and I don't want to ruin my bearings driving to work this week. Just a bit nervous, sorry.

Thanks again for your help.