The oil in the diffs is supposed to be changed often. I heard, but have not experienced the seals inside the diff tend to leak. I have had my ARBs for (I think) five years now. I have not changed the oil yet. Hmmmm (sigh) another projects
I seem to have problems with the blue lines, especially the ones near the exhaust. I have since replaced the blue lines with copper.
I have also had problem where the blue line mounts into the adapter at the axle itself. Apparently these lines aren't really that flexy and most of the damage/flex stress happens right at the mount. I think a swivel adapter will really help here..
Regarding the pump turning on and off alot, I first experienced that one time, then I added a five gallon tank. This tank (if I have no leaks) lasts about one hour hitting the buttons on and off.
When I was on Snow run (~3 feet of snow) the lockers seemed to work intermittently. I think the lines get REALLY cold, and cannot develop the pressure required when the snow is hitting the axle. /forums/images/icons/frown.gif Then again, our trail boss had ARBs in his front, and he had no problems.
When I got home ~60 degrees. They worked fine.
With all the above said,
I really LOVE the selectable lockers. I go to Tahoe often in the winter for skiing. I am SO HAPPY that I don’t have a full time locker in the rear. The truck is much more stable on the street snow. Just for fun, while I was going to Tahoe on the street snow, I tried the lockers and they worked…. Go figure. I guess the ARB’s don’t like the EXTREME snow.
Also, it is much easier to steer on the trail with them off, and then when I need it for a tough spot, I hit the button. It's kinda' fun to tackle a spot with both open... then when I determine that I am either holding up the line, or that this spot on the trail will take some aggressive throttle, I just hit the rear (or front) and walk over it.
Oh yeah, if there was an electric (or other mechanical actuated) locker available for my axles (or future axles). I would go with those. But then again, I will always have an air pump on board in some fashion.
Any other Q's let me know....
Sorry for the bandwidth.