so after a recent wheeling trip with quite alot of water crossing and silty mud I now have a pretty loud whine that starts around 35mph and stays.

the front diff had water in it but the rear was fine. t case is clean.

it sounds like the rear diff but I'm not sure. took out front drive shaft and made no difference. with the shaft in in 4wd it made no difference.

it goes away when I let off the throttle.

the rear has been mostly gone through with new wheel bearings and seals. and the TRAC LOK has new clutches.


mostly curious if this can happen if its the Tcase. or is this only a rear diff thing. need to ditch the d35 anyways.

Not really sure why I'm posting, I already fixed the noise with a new stereo.

 

From what your saying it must be the rear D35 are you sure it didn't have water in it? When you drained and cleaned the rear did you refill with the proper fluid/weight for the Trac Lock. Keep looking is all I can say.

 

The rear was clean. The fluid was pretty dark but thats expected on a first fluid change with a fresh set of clutches. I put 85-140 w/lsd in this time to see if it made any difference. It did not. Didnt even change

The front how ever was really full of water. Though fresh fluid here made no difference either.

 

Sound changes with change in engine revolution but does not change with tire revolution?

 

Engine speed has nothing to do with it Aside from when pressing the throttle it makes the noise. If i let off or put it in neutral it goes away. And it only seems to startvat 25mph on my speedo. Which is about 35 with my tires

 

Don't know, but that is some of the nastiest crap in that differential I have ever seen. What all was in it did you feel of it and look closely for metal of any kind in it, were both just like this?


I would change the fluid again in a few weeks and make sure everything is clean if it were mine.

 

I intend to flush it out again. I got it pretty clean. After about the 4th can of brake clean i lost feeling in my hair so i think i did good. The rear was fine. No water in it. Pretty soon im regearing and locking so im not supper worried

 

could be the transfer case too