All I had to do was remove the axle nut, press the axle stub out of the hub, disconnect the lower strut bolts to let the spindle hang free, and remove caliper and rotor, you can then swing the axle out and sideways and have access to the outer joint while the inner axle stays connected. find the sweet spot and whack the joint with a deadblow hammer to get it free from the stub, repair your joint/repack if needed and reattach the outer joint to the stub when done, then clamp your boot and reinstall the axle into the hub and put on new nut.

I used a free slide hammer rental set from Advance Auto which had a flange which bolted on the hub and came with a threaded rod that I pushed into the axle to get it out of the hub, easy.

There are videos on reinstalling the joint onto the axle stub with some tips on Youtube if you need help, there is a sweet spot which will make disassembly and reinstall of the joint onto the stub much easier. Basically if you hit it right it should pop on, and if you hit it in the right spot it should pop off easy.

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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