At home I have some good diagrams from the service manual. Here's one with the Detroit True-Trac installed.
You can just barely see all the holes in the adjuster. When you remove the clip from the center of the caps, you can then turn the adjusters with all the holes that go around it. I actually used a Motorcycle brake pad pin to put in the holes to turn the adjuster and get the proper pre-load.
Here's a pic when I was measuring the backlash on the stock carrier, but the adjusters can't be seen. They are just beside the caps. It's very obvious how it all works once you get in there.
Stock carrier and the DTT.
Axles pulled out, so carrier can be removed.
Are you think about a DTT or a locker for the front?
Raynval, I was getting the rear axle confused with the front, two different animals. I thought I had to run a shaft down the axle to adjust the spanners but I don't they are adjusted right in the front. I was thinking about making a spanner wrench but would need the diamentions to do it right. I have obtained a copy of the 2010 service manual. I am thinking about a locker. I heard that with all that weight up front the front is under alot of stress so I was thinking maybe spin free hubs too. Thanks for the pics.