Morning all - I noticed some oil spots in my driveway yesterday after moving the X5 around and it looks like the differential input shaft seal is leaking. Has anyone tackled this job themselves? Looks pretty straightforward and I'm moderately handy with a wrench, but this would be my first time attempting anything with the driveshaft...any gotchas or tips and tricks? It's a 2010 X5d, to be specific.

Thanks