04 Ram Hemi Rear End Options

[Jacarc1]

So I have an 04 1500 4x4 Quad cab with the hemi. I have the LSD with 3.92 gears. High mileage at 190,000. I just changed the rear end fluid and found part of the clutch pack retaining clip. I want to change to a better setup that I'll be confident won't explode at some point. Looking for recommendations on what unit to get and what all is involved with changing it. Thanks in advance!