I'd like to add a question to this question...
What kind of air pressure is going to these failing seals? Does ARB include an inline regulator to limit the pressure?
This should be easy for ARB engineers, to fix. All heavy truck transmissions, (modern ones) use air piston, to shift fork, range shifters. But, they have air filters and regulators to limit maximum truck air, (120 PSI) and control what gets to the cylinder.
Sounds to me like ARB better get on this.
ARB told me a few years back, that their lockers activates with 80psi. They also said they maintain only 3-8psi @ the locker to hold in the locked position.
First was on a Hp44 that was beat for about 4 years then started leaking. It ended up being a bad seal housing. They covered it.
Second was just recently on my ECGS hp60 2018 model where the seal leaked to the point that the compressor would not shut off more than 10-20 seconds. However the locker never stopped working. I ended up destroying my ring & pinion that week. I sent the axle back to ECGS for warranty repair and they contacted ARB for parts and they replaced all the locker components/parts at no cost to me.
All in all, I love my ARB & they have always taken care of me.
I have often debated switching to a Yukon competition zip locker. They use the same seal housing as ARB on 60’s at-least, but if they fail/break for any reason the will revert to the locked position. I really like the idea of having true 4x4 to get off the trail if there is a failure. Anyone know if this is true or have run into any issues with them “Yukon comp air locker”?
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