IMO.. If you made it to 113k miles with no problems then Id keep it. Sounds like you got lucky and got a good truck. But then again if your going to get $20k for it Id take that deal. Like MDub says. No ones is going to give you that for a 100k mile truck. I paid $19.5k for my 07 with 53k miles on it and that was a good deal.

 

Honestly, the TTY bolts on the heads of the power strokes are rated over what the stock engine driving off the lot will put out. If you don't upgrade your truck and keep it stock, then they truck will be pretty dependable.

Chevrolet have there problems and so do Dodge. It's all on personal preference, but never go from a 6.0 back down to a 7.3... I own both trucks and i prefer my 6.0 over it any day.