Hoping to get some guidance so I can get a truck........but the right one.
Looking for a 1 Ton dually for heavy RV hauling. (both trailer and fifth wheel) Something between 2002 - 2006.
Any suggestions as to what might be the best set up and value.
Required power plant?
Best fuel economy for long distance hauling?
Automatic vs manual?
make model price range?
best power train
Any feedback would be appreciated.

Duramax/Allison will be a good combination for you. Some of the LLY engines (04.5 to 05) are overheaters. Theres a fix for that though...Simply get the newest one you can afford...