You need to jack up the rear and block the body. The higher the better.

You want to support the subframe when you remove the large bolts that hold the bushings in place. Don't let it hang via the differential mount.

Getting the bushings out can be a bit of a PITA. I used the lip of a crowbar and hammered downward to force them out. You don't have much of a lip to pull against. Fortunately, they are not overly tight like the W123.

They should arrive with an "L" and an "R" stamped on them. Left side and right side........they are slightly different for some reason.

The threads on the bolts are fine threads. Be careful not to crossthread them when you start them back in.