The link below is to a number of files I have done up related to replacing the front differential breather, p/n LR019450 referred to above.
Doing so pretty much eliminates the blown front differential seal concern that leads to no oil and then the usual fuss.
The new does not plug breather uses Gore Tex fabric and costs maybe fifty dollars now and is a clean hands stand up fix. While two minutes would be correct the second time, it took me maybe a half hour, most of that time attempting to convince myself it was that easy.
The rear differential breather is just the usual open hose with the inverted horseshoe and is tied high up to the fuel tank fill piping - that is the old style open pipe breather and does not normally plug.
The files per the link below explain how to do the upgrade.
I note that many of the files have between one and two thousand views - pretty good given it is not Facebook.
The related Technical Service Bulletin is also included within the attached files; it has 1509 views as of this post.
https://www.disco3.co.uk/gallery/thumbnails.php?album=23952
