Hello Dougie995 and Paul
I thinks I see the issue.

I wonder if the diagram is misleading.
Note there are 6 bolts and nuts (39) and two bolts (40).
Maybe the 39 bolts have the spacers ...?

Maybe the six spacers belong to the four engine mounts
and the two on the PTO side clutch bracket of the engine.

At the very least, two rear spacers must go to the rear engine mounts.
It may be that the tank bolts require no spacers because they do
not travel through the two cross bars. That is mere speculation.

I'm hoping someone can help in solving this.

Hope this helps
---------------------------
Jack

Attachments
page_34.jpg (44.76 KB, 118 downloads)
page_37.jpg (57.7 KB, 117 downloads)