Hey guys, Thanks for the info...
I'm having a similar problem (but not so severe) I have a 98 GC and it won't come out of PT4wd unless I come to a complete stop and shift the tranny into park. But I also put two new tires on this fall...I need to check into 2 more new ones.

So did we come to any conclusion on how is the proper way to shift into 4wd? And say if the roads are partly icey I should be in 4HI? Thanks.