Looks like you quoted my long post before I made a couple small adjustments - his alignment comment is part of what I was saying about having the vehicle at normal ride-height when re-centering the axle with an adjustable panhard, which doesn’t apply in your case with a non-adjustable bar.
I’d...
The springs are under load, but that’s okay for this job. The bar is not really, there may just be a little shifting side-to-side when it’s uninstalled. You can see his friend pushing the truck from the side so the second end of the bar aligns with the bolt hole.
Jacking the axle up doesn’t change the position/state of the suspension, it will simply lift the whole vehicle up. The short version is, if you’re simply replacing the panhard bushings, all you need to do is park the truck on level ground, remove the bar, put new bushings in, and reinstall the...
Sets the lateral position of a solid axle & controls its side-to-side movement as it moves up & down with the suspension. Also called a trackbar, as it allows the axle to vertically “track” properly (at least that’s how I think of it).