I went form an 00 to an 02 and I find myself using the 4wd in a few conditions I would not have before. W/O full time I would leave it in 2wd if just side streets had snow, I hated switching back and forth every few miles, w/ the 02 I don't even think about it. That's the only time I use it though, I have never felt the need for 4wd in wet conditions, my trucks have always felt very stable in 2wd in any amount of rain. I tried it on dry pavement when I first got the truck and it felt pretty much the same as 2wd, so I would say it is a good system. I think I read that on the 4th gen w/o the center diff locked it is a 70/30 split, not sure if the 3rd gen is the same type of setup.