It is a good link, but kinda written with a fatalistic slant to it.
I have driven 60 plus miles of freeway (anza borrego to riverside ca) at 75 mph in 4 wheel high, with the same model transfercase as the one pictured (NP231) in my jeep and 2 years ago and still bash up the beast on a regular basis.
hereis me 2 weeks ago in the jeep with the abused case
I discovered I was in 4 high when turning into my Driveway and felt bind for the first time. Now if I had been in 4 low, I firmly beleive something would have broken.
In heavy downpours I still pop into 4 high. Yes it is not good to drive a parttime 4x4 in 4x4 on dry pavement, and really bad to drive in 4 low, but 4 high I have done in many different makes because I brain farted and did not click out untill I felt driveline bind
