I have a 1998 4wd. I have a noise (kind of a friction sound) in the front end. My rav4 is a manual trans, the noise isn't noticible until i get over 45 mph. I have put the trans in neutral and it still makes the noise. I have tried turning sharp in both directions and it acts normal. It doesn't pull either direction at any speed either. Any suggestions as to the problem would be great. I did check the gear oil on the front and back and both were good.