I put my '95 in 4H, for short time, switched back to 2H & now there is a whining noise coming from front end. It sounds like it'e on the passenger side. Truck still drives fine, but you really hear it when slowing down. Any ideas what is causing this?
Try to switch from 4hi to 2hi and vice versa again, it's probably the t-case shift linkage that is binding. Try and check to see if there is a problem; have a buddy put it in gear while you look at the linkage to see if it has enough slack. The only other thing I would suggest is to check the front differential housing for cracks and don't forget to check it for the proper amount of oil, that may possibly be the problem!!. Let me know if I can be of more help!!.