The nut looks fine. I also used a chisel on the staked edges.

As long as you are using 36mm12 pt socket you are good. Need 3 foot or so of steel pipe over your breaker bar. Use the handle for your floor jack if you can

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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