For next time. If you remove the center bolt FIRST (19mm.) then the four attachment bolts(13mm.), it will let the center bolt break free of the rubber mount while it's still stable from the attachment bolts. (Usually. Unless, of course, the center bolt has cold welded/corroded to become one with the axle). Once the center bolt is out then remove the attachment bolts and pry that rascal out.
The Golden Rule
1984 300SD (bought new, sold it in 1988, bought it back 13 yrs. later)