Driveline clunking noise at front

Hi guys,



Sadly first thread on here since I need some second opinions on diagnosis for what the issue is, I believe it's something with the front driveshaft.



Here's the essential info:

- Seems to be isolated to the front, doesn't seem to be louder left/right

- Present only when driving; will happen when accelerating or decelerating/braking, does occur when turning

- Noise does NOT occur at all when idling or at rest; engine is functioning normally

- (I have Quadradrive) shifted from 4 All-Time to 4-Low, noise was still present. Shifted back to 4 AT and it was still there

- No visible obstructions to any drivetrain components, no leaks, etc.

- No problems with gear shifting, zero hesitation, etc.



The front DS is the Rezeppa-Rezeppa style, here's some very recent photos of it: http://ift.tt/1Ihr3em



Here's a video of it driving, the sound is most noticeable in the first 20-ish seconds (please excuse the subpar mic on my cellphone), note that it's totally fine when at rest:

YouTube

YouTube

Thanks a ton in advance for your guys' help :)