Quote Originally Posted by Matt View Post
I know you're usually on top of your game with this stuff.... but when was the last time you replaced all the driveline fluids? And did you add the additive to the diffs?
Quote Originally Posted by lekmedm View Post
^^^That was the first thing that jumped into my mind while reading this. Have you been adding the friction modifier to the diffs? It sounds like classic symptoms.
Well the T/C was replaced more recently but I have not replaced the diff fluids in about 30,000 miles and did not use the friction modifier, so that is a real possibility. When I disconnected the ELSD cables and still had the problem, I assumed it was the brakes doing it. I have always thought that QD-II uses the brakes in addition to the ELSD but nothing I have read recently supports that assumption. I know that the ESP definitely uses the brakes.

I'll change the diff fluids and let you guys know if it helped.