Just noticed that the previous owner of my L405 had the rear axle oil changed a little over a year ago. Not sure why, but, wondering if its worth changing the front when I service it, or is it a case of "if it's not broke, dont fix it'?

Yes definitely worth changing it as it’s 10 years old if never changed before. I would change all the transmission oils if over 50k on the miles then you know they’re all good

Thanks Dave..