I purchased my 2006 Dodge 2500 5.7L 4WD SLT Quad cab new. It now has about 30k on it and has been an excellent truck. Nothing has ever broken, it drives great with excellent acceleration and braking, but definitely rides like a truck. The storage space under the rear seat is great. I live in the south and the AC cools pretty good, but could be a little better. Fuel economy averages just under 14MPG, if I do all city driving it drops to around 13.5. I bought this truck to drive for years and enjoy and so far I have gotten what I paid for.
Reliability, performance and interior features.
There is one U-joint that must be lubed at least once per year. Suggest replacing this u-joint with a sealed one, if this has not already been done on latter models.