Transmission rear mount soft parts

When replacing the perished foam ‘rubber’ of the mount is 1 rubber spring seat required or 2? Are there any other soft bits that are required to refresh? The parts diagram I’ve been able to find is blurry and ambiguous.

I may have the whole shebang with two rubber sandwich blocks.

When I got the bushing kit from SNG Barrat it came with two and I used both.
Others had trouble and used only one.

One on bottom and one on top, plus the… H-section hollow bone like rubber bush in which the large vertical centering bolt glides up and down. You know what I mean.