I have an OX locker in the front of my TJ. it was cable operated when I bought the TJ (2008). the cable went out of adjustment a couple of times and I converted it over to air to match the ARB in the rear. the OX uses a bigger air line than the ARB; 1/4 inch VS 5 mm.
Granted I don't live in the extreme cold such as you but I have never been disappointed in the performance of my air actuated OX locker.
Granted I don't live in the extreme cold such as you but I have never been disappointed in the performance of my air actuated OX locker.