I am just wondering how good this truck is. I have found a 2003 8.1 dually 4x4 with 140k miles on it with manual tranny on it. Excellent condition for just under $15k. I was wondering if this is a good deal for what it is? I love my 2002 duramax but diesel prices suck down here and I need a back up. I pull trailers and heavy loads (8k-12k) 3-4 times a week. Just wanted some feedback on this type of truck. Thanks!