i have had a trd 2 way lsd in my sprinter for about a year now...
recently i changed from the redline 75w90 to a lightweight shockproof (the blue shit)
after about 2 days all of a sudden a noise started at slow speed which sounded like a strange clunking (shudder kind of)
after pulling the lsd out and having examining it no fault can be found....i talked to some people and they say that the oil is wrong and makes the plates bind up and that noise is them slipping under lots of load....
i changed back to the old oil i was using and found that the noise is still there....much quieter and seems to be going away
my question is....is this possibly the cause? How long should this noise last if it is....?