I posted the one about the jerking 4wd bit. My '97 Explorer XLT feels like I have the parking Break on when I try to make a turn in 4wd High and even worse in Low. I sounds like something is slipping in the front end with a jerking poping sound. I take it out of 4wd and no problem. I need someone who has cracked into the front end of one of these things to tell me what it could be. or better yet, how to fix it. It's only when I turn.