I used the gasket with blue hylomar.
All back together and driving again, but I think I may still be stuck in difflock from when I drove it home broken.
As I reversed into a space at work I got abit of a judder, vaguely remember something similar when I was stuck in diff lock and needed to reverse around abit to unlock, I don't use diff lock at all really.
Got my jack with me and parked on the flat,
If I jack up one front wheel it should spin if diff lock off but not if diff lock on, is that correct?