I'm on my third (and last for a while) Dodge.
95 5.2 dakota, carrier brgs at about 36K under warranty, did not feel bad, towed a lot with it and it was an 8.25 rear axle- traded at 40k
98 durango, 5.2, towed with that too, never any trouble, 9.5" rear like the 1/2 ton pickups, traded at 40k, no trouble
2001 2500 with hopped up cummins and 11.5" Dana 80, tow often (Pure tow rig now, bought a grocery getter), 55k, runs strong, many trips grossing 20k.
The 9.5" generally has a good rep, you can get a "bad" bearing in any axle.
If you can handle the noise and smell, diesel's the only way to tow- get your $upgrade money back on resale.