Gilly Thanks--
Can you explain to me what the service campagin is? I purchased the truck from it's original owner around a year ago with 35k on it, and i'm not sure if I belong to it. What type of problems could this lead to? The low range does work when I engaged it, responding correctly and engaging, when I turned it off it disengaged fine. My father is a mechanic so between the two of us we get things done. So far only replaced the harmonic balancer. Thanks again for all of the help.