The big casualty was the plastic selector knob on my Warn hub. Fortunately I had a pliers with me. I have a couple extra locking units. But I would like to find just some extra knobs.
Regarding transmission temperatures...
So far the highest temp I have seen on the 42rle is about 173°F. This was during a long uphill climb on the highway going about 60-65mph with the engine rpms at or above 4500rpm with air temps in the high 70s.
On the trail with similar air temps, the trans temps were in the 150s and often dropped into the 130s.
This is something I will be watching especially after the regear when the transmission isn't working as hard against the poor gearing.
You might email Warn. At one point there was a service part number for those hub dials.
I'd love to learn how this works if you go this route, might be fun to do some repeatable tests across a few materials.