A little experience. Your axle tube is likely bent. Even if you replace all these parts, you will likely still have trouble. I expended a ton of effort on a 1999 that hit a curb sideways after being T-boned and it burned up axle bearings every few months. Finally, just did an entire rear end and it has been fine since. Rather then get all those parts, just get an entire rear end assembly for little more and simply bolt it up. The trailing arms will come with the rear end, but you may still need to convince them to give you the panhard rod.

1996 SR From the Area 51 Skunk Works. 37"BFG Tires, 5" lift, Rock Track 4:1 Case, Tom Woods Drive Shafts, Oasis Air, Front ARB, lifted gas tank, T-max winch and lots of stuff that cost too much.