Well, I've sold my '06 5.7 1500 gasser, and am looking to replace it with an '06 2500 CTD. I have a lead on one...4x4, QC, short box, and well maintained...pretty much just like my old one except for a few more miles and the obvious differences. Is there any one piece of advice you would offer when I go look at this...it will be my first diesel ever. Thanks for any advice.....