Think if you want to stop the pumps leaking from the racks they will need to go to a specialist. The bellows style rubbers ( if that's what you mean ) are dust covers. There's a good place in Scunthorpe I got put onto on this forum which wasn't expensive for the pair. Maybe not a great help if you live in Holland. The gearbox I don't know, not totally sure who made it. Have asked before and those with ' the knowledge ' on here think that it may have been made by ' Parsons ' although it has Cov Vic cast onto it. Never had one apart myself. They come up on ebay here once in a blue moon, usually in pairs attached to water cooled engines HDW and sell cheap. Hope you find a way to sort it, I think ( others may disagree ) that it would be a shame to remove the set up that you've got. The clip put a smile on my face anyway.