[Richard.Janek]

I've had it done by a boatyard. New PSS shaft seals installed. Not too bad a job.

You need the boat out of the water, remove couplings and propellers, pull shafts out (they clear rudder).

Check alignment on everything while this work is being done.

Coupling to shaft concentricity and propeller balance. Final engine alignment when boat is in water.

I have same transmissions, different boat - 4000 Express