Let's say you were looking for a Dodge diesel, one ton, 4x4, full bed, crew or extended cab set up to tow a 14,000# horse trailer and wanted to stay at or around $20,000. What model years should you avoid and/or seek out and why?

98.5 was the change to 24 valve, so since it's a major change, avoid. 2003 was major all around change from frame to axle, but seen few problems even the first year.