Roger Long wrote:
"Dennis Pogson" wrote

Fit an AquaDrive and all your engine vibration will vanish.

True, nothing smoother. Evolution has a similar set up.

However, few sailboats will have the necessary space between the
stuffing box and the engine. The CV joint need some offset to keep
them from wearing on one spot so the engine will need to be raised or
lowered in a retrofit. Many boats will need extensive modifications
to the beds so that the thrust from the thrust bearing can be
accomodated.

These are more practical when the boat is designed for them.
Retrofits can be very problematic.

True. Ours was fitted when a complete engine re-fit was performed.