Anyone good at reading contact patterns - Diff

Hi guys,

I finally drove the celica for the first time ever after a year on the drive, when we bought it the clutch was borked so the first drive was a voyage of discovery!

There is a heavy vibration at low RPM what, this clears at the revs rise, I am thinking prop for this one?

And the other issue is a heavy whine / grumble from the back end, for this I am thinking diff bearings / tooth contact? Here are the contact markings (sorry for the poor photos, bloody hard to take a picture of!)

drive side -



coast side -



What do you think?

Thanks guys