Sounds like you have a plan . Where are you located ? Maybe someone will chime in who has local knowledge of the things that could help you out . You should be able to get the axle out if you got the birf out . I once had an issue with an axle I couldn't pull out and had to make an adapter so I could use my slide hammer on the end of an axle . IIRC I used an old broken inner cage from a birf and used some chain to hook it to my puller . I think the groove is big enough to use the split ring from the outside of the hub fuse on the inner axle to hold it on . Does your truck have manual lockouts or electric ones ?