After I finished the driver side fronts, I thought the passenger side would be a breeze......
front bolt had rust/welded to the metal bushing sleeve. Vise grips, a can of WD40, propane torch, 1.5 days, and a shit ton of patience, I got it out.
As expected, the rear lower axle bolts did the same. Since I had room, I ground off the head, then used a bolt and a series of washers to slowly pull it through. After all that, I crawled under to snap some photos, and realized I'd put the lowers of the wrong sides!!! In practice, laughing aloud, and muttering to myself, it only took about 20 minutes to switch them.
New cats, and Flowmasters (of course)