Even with older model nonx drive, the front wheels will "lock" when needed for traction. I have noticed when I come out of a step enough ditch where one wheel comes completely off the ground. The floating wheel spins a little before a big thunk as the diff locks and puts power to the grounded wheel. If it stays locked of course you will get shudder while turning as one wheel is scrubbing the ground. There has to be a balance in the viscous coupling in the diff or one wheel will always spin or you will get shudder.


Sent from my iPhone using Tapatalk Pro

__________________
2011 E70 • N55 (me)
2012 E70 • N63 (wife)