2005 and up Ford 60. I have to change inner axle seals. It has an ARB. I am seriously considering replacing with aDetroit but maybe not. Is there anything I should know ahead of time. Replace O rings?? How hard is it to unhook the air tube and work the carrier out and in. The truss on the axle won't allow me to use my case spreader Could I be screwed? Also wondering if I should be looking into upgrading axle joints while it is apart. Thanks in advance for guidance.