Serving ESOF on a 07
I am having some ESOF engaging problems. When ever I flip the ESOF switch, while the hubs are in auto 4x4 will not engage and the front defrost comes on. But while the hubs are in lock the 4x4 does engage. So from what I have read here I have a vac leak. I have checked the vac lines, they all seem in good shape. I have never removed and rebuilt my hubs. So I was planning to do this this weekend. I have a ring around my hub lock key. It has three alan screws holding it in. Does anyone know the procedure to remove this ring and further to disassemble the hubs?