My '05 Dak AWD with 67k on it has started steering harder like the binding feel you get with an engaged 4wd on dry pavement. It gives a lot of resistance when turning l or r. Shop said I need the system's oil changed (special oil from Dodge) and that was done...except no difference. I've done some reading on the web and looks as though this isn't an uncommon issue. Some have said a new "steering rack" is needed. Has anyone had this problem and if so did ya come up with the fix? Thanks