So I just sold my 14 crew 1500 hemi/8spd and went to a 90 d350 dually.
The main reason is that I didn't need a truck payment on a truck that gets 3-4K miles a year.
That being said, it definitely pulled better than my d350 in terms of getting on the highway. This being an open car trailer with a diesel truck on the trailer The d350 does sit nicer with trailer.
But I would not hesitate to go back to a new 1500 gas. It pulled nicely. and definitely had power. and for the record 1500s hemi is a 395hp 407 ft lbs.