2014 Summit 5.7 4wd 20" tires swapped to 18", added all skid plates
You can engage and disengage it anytime at any speed. Yes, it's ok to hit 4000 to finish a pass.To me, that read doesn't clarify if I'm expected to enable it at highway speeds while towing and no harm will be done. Everything seems like a hill while towing 5540 lbs.
If it's enabled and I'm in the passing lane is it ok to hit around 4000 RPM to finish the pass?