I presume you mean the hinge sockets in the oven frame, and that you know the door can be removed to replace the actual hinges in the door. If that's the case I can't picture this particular set up but this might be useful.....If you remove the back panel and can see a clearway to the sockets but can't reach them then what I used to do on many ovens is to remove the door, remove the top screw from the socket and thread a length of wire through the screw hole to the back of the oven and secure at the front, then remove the bottom screw of the socket and lower the wire at the back and it will slide down the wire and out to meet you. Fit the new socket top hole on the wire and raise the wire and it will slide down the wire back into the oven into place , locate the bottom screw to hold the socket in place then remove the wire from the top hole and fit the top screw. And there you go houdini style Cheers
Kenjo, February 2014
