I occasionally get a similar noise and I just haven't worried about it -- seems relatively normal. Just had the vehicle completely inspected and serviced by Torfab too, and there was nothing of note.
Not what you asked for, but I'm in your area, so figured I'd reply!
I have 5 16" SCS F5 wheels mounted on 33" KO2s with lots of life left. All in great condition.
DM me if interested! Haven't posted them broadly yet, but I will soon.
I had this issue as well and my understanding is it's fairly common. My locker indicator would blink on the dash, but then never actually engage. Was due to a bad 4WD low sensor. Got it replaced and now no issues.
I have a '99 100 with 200k on it, sourced from Southern California. No rust anywhere. Of course it's seriously important to me to keep the truck rust free.
Question: How much salt exposure is needed for rust to begin?
Would very very occasional exposure to salted roads (less than 5 times a...