It's not rubbing. I had my friend listen and look. It's coming from the axle..
It's a metal on metal grinding sound only under lots of stress.

 

I'm going to ask what you may consider some dumb questions but I gotta ask. Do you have oil in the diff? Do the axles have lube?

 

Haha! Yes they do. I just recently changed the diff oil and re greased the Birfs. And there was no metal shavings in the diff either.

 

Was your friend able to tell if it was coming from the knuckle area/axles or from the diff?

 

Here is what the FSM says to check.

 

I also see that you have detroits in your front and rear. I've heard of a bolt working its way loose in detroits causing this before. I'll do some digging and see if I can find some info.

 

http://forum.ih8mud.com/threads/need...locker.581755/

First link in google upon doing a search on the issue.

 

He wasn't able to tell where it was coming from. He said it was too loud. I will
Have to check all
Of the things on that list. I know it's not oil
Related. It actually has a spartan locker in the front, what would make the most sense? No
Noise driving normal in 4wd. But once the high stress stuff starts she starts grinding away? I'll have to tear it apart to find out for sure.

 

That almost certainly sounds like a locker problem. When you are driving "normally" the locker is not engaging. It engages based on torque from what I understand of the Spartan. My guess is something has come loose in your locker assembly.

 

It does engage by torque. But in the snow when I first heard it I had it in 4low an I could mash on the gas and not get any noise at all!

 

Did you set up and install the locker yourself?

 

No. I bought it with the lockers. I guess I'll look at the wheel bearings. And if I don't see anything there or in the hubs, I'll pull the diff and see what I can find

 

I'd have to guess it's the locker, if not that then the ring and pinion backlash might not be set right. If it was any kind of bearings it would most likely be a constant noise, not just under load. I saw a vid on you tube where a guy busted his locker and it only snapped and crunched when the locker would normally be engaging, under lots of load. Auto lockers are basically a ratchet, so when they break they can have that broken socket wrench sound except much bigger.

I don't know what yours sounds like, if you post a vid maybe I'd be able to help a little better.

 

http://www.extremeoutback.com/produc...mpressors.html

Nate this the link to the extremeaire line of compressors I was telling you about yesterday.

 

Was just told I have to work this weekend. Pushing the Walker trip to next weekend probably. Stay tuned for a definitive date.

 

Is Walker still on for this weekend?

 

I will be finding out whether or not the shop is working this weekend later this afternoon. Its looking likely at this point. Does next Saturday work for everyone?

 

Okay so I will be free this weekend after all. Brendan you down to clown? Anybody else free that wants to get some dirt on your wheels?

 

Greeny did you figure out your issue?

 

Sweet, let's do it.