Depends on the jack stands or jack cradle type, if can get to lock into an area suitable. I often use the rear of my subframe connector mounts or even the rear subframe , but you probably don't have the connectors. That leafspring area be good if can make it fit securely.
Grab plenty of solid timber blocks too, you may be able to jack up the entire rear using the diff centre until wheels off the ground, add your stands, then drop diff down while taking up most the weight on the stands but still some on diff. Obviously, removing the rear wheels for access will also allow you drop the diff lower than with on. It may be enough to lower axle below the muffler for access. Or not.
It may be easier to remove the muffler, lots of hangers and things supported by it though to tie up or also remove.
