I have a 2000 4runner and I'am having 4X4 problems. Once I put in 4wd the left side makes a grinding noise when turning left its makes a clicking noise and the wheel having a hard time turning. at first i thought it was my axel i replaced it but was not. i thought it could be the wheel bearing but i looked at it and seem fine.It's only fine when not in 4 I NEED HELP PLEASE...