upgrading rear diff

[irishwake63]

I searched for post on this and came up with nothing but is it possible to upgrade the rear diff for better towing?

 

[Rick3478]

In general, the stock diff isn't all that bad. I'm considering one of the finned covers for mine. Not sure if the 2500 suspension mounts are the same, maybe one of those axles would fit.

 

[barrak]

I searched for post on this and came up with nothing but is it possible to upgrade the rear diff for better towing?

This should answer some questions:

Anyone convert a 3.21 to 3.92?

I'm towing a 7k lb trailer and could use some extra gears. It pulls ok just hits 5k rpm going through 1-4. Rarely gets past 5th gear on hwy. Any idea on cost and complexity to change gearing? All of my local dealers have never done it and won't quote it. :(

5thgenrams.com

Seems practically possible only for 2WD.