Diff. noise when turning right?

[emr454]

Hi all. I have a 93 ranger supercab, 4.0 v6 with the 3.73 traction lock rear end. I hear noise that sounds like its coming from the back end when I turn right, but not left. I notice it more at slower speeds. It seems to make the truck vibrate a little. Never happens on the left hand turns. Any ideas?

Eric