Rear axle swap basic Qs: Safe lifting and jackstand points while pulling rear axle?

You dont need the second set, lift by the diff, High, then place jackstands as I stated, lower the jack on to the stands, before you get jack all the way down, remove the lower shock nuts, and pull the shocks off the lower mounts. then lower the rest of the way. .

What he said and....
1. After it is secure, disconnect brake flex hose and parking brake cables.
2. Support rear end with floor jack just enough to take the weight off.
3. Unbolt the lower shock nuts and move the shocks out of the way. Or just remove them.
4. Unbolt the rear spring shackles at the frame. 2 screws per side. (9/16" hex)
5. Lower the rear end til the wheels rest on the ground.
6. Unbolt the front spring hangers, 4 screws per side. (9/16" hex)
7. Roll the rear end housing with the springs still attached from under the car. (Rolling floor jack)
8. Much easier to finish the disassembly when everything is out from underneath the car. You can support the housing on each side with jack stands. The 1/2-20 nuts on the end of the u-bolts are locking type and are difficult to get off. (Anal Mopar engineers) I've found that once they start coming off, I keep going all the way. If they cool down when they are partially off they tend to lock on very tightly. Impact wrench with deep well 3/4" IMPACT socket here. I prefer to save the original u-bolts if they are still in good shape. Generic aftermarket ones usually don't look correct. If I think I'll be removing the rear end again, sometimes I'll substitute grade 5 or 8 hex nuts and thin jam nuts.

I've done this by myself several times.