I just traded in my 97 half ton for the 01 3/4 ton. When I traded in my half ton, the door hinges creaeked and groaned like nobody's business. What had happened was that the roller bushing that rides on the rocker cam wore out, causing the bushing to bind up, and therefore wear and creak... ... I noticed that on my new truck the same thing is starting to happen, I was always good on the last truck to make sure it was greased (I used spray white lithium) but it didn't seem to help, and it's not working on this one either. Any suggestions?