I don't know how much help I will be but I will be resealing a steering box soon. The one I have is leaking at the seal above the pitman arm. First don't take the box apart you need a lot of special tools to rebuild one. Just fix the leak if you need to get inside either send it out or buy a rebuilt one. Remeber your life could be in danger if the box fails!!
As for removing the tie rod end and center link ends I used the fork tool you just hammer in the joint. It works well but will ruin the boot.