We haven't had any specific reports about the diff in the FG, although we had plenty about the diff in earlier models. If you've given it a hard time you might have cooked the oil in the diff, so have ...

I owned a BA Falcon, which I used as a taxi for four years. I found the cure for a noisy diff was to change the oil and add Penrite Diff Additive. There was never a murmur after that. I can recall ...