roadrat, I also didn't see anything listed for 03's. I know there was some change to the dif cover, as new ones have "fill level" and a line stamped into them, where mine doesn't. Makes me wonder if there were other changes.

1tuffdiesel, good idea. I may call the tech authority. I kept the printout the dealer gave me, in case there ever is a warranty issue.

When the 3rd gens first came out, there were several long threads that beat this issue to death...

https://www.dieseltruckresource.com/...l&pagenumber=1

 

Re TSB's vs specs in Owner's manual: on my previous 2 Dodge RAM's, had addendums sent to me for the Owner's manual. I took them to my dealer, and as they were unaware of changes they photocopied them for their info (they were putting wrong oil in the diff). So who knows where all the info goes.