Great advice, when it comes to the rear end, I would just remove the wheel carrier and lower swing arm, and REPLACE EVERYTHING. you don't want to do that job for another 75k-100k miles.

As well, order a set of handbrake cables as they almost certainly will be seized in place and needing to be cut out, parking brake shoes and hardware if you need them, and don't forget the 2 bushings on the lower swing arm piece that are pressed in and out. It may be a hefty bill but considering the weight and power that travels through our rear ends it is proper do do a full rebuild, esp knowing that many pieces may be rusted/seized in place.

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2018 Ram 2500 6.7L Cummins 68RFE
19k miles -Bright White/Black - Big Horn Sport - Crew Cab Short Bed
2013 X5 35D (CEO's) - Born on 5/17/2013 -
82k miles - Alpine White/Cinnamon Brown/Premium Pkg, Sport Activity/Premium Pkg and Sound/20" Style 214/Running Boards