Problem with Diff nut on D4

[joffacn]

HELP!!!

My threadlocker was too strong or too much used. When I tried to tighten the diff after running for a while the metal insert in the diff nut just spun inside the plastic part of the nut.

This means I can remove the plastic part but the metal part of the nut is still deep inside the outdrive and threadlocked to the diff bolt. I cannot tighten or remove the diff bolt.

ANY IDEAS to remove?

What is a substitute replacement part with a full metal nut like on the slipper? These are large head 25mm x M2 bolts and 2 mm special nut.
OR
Does the plastic part of the diff nut hold it in place without threadlock?

Thanks Jeff