There was an issue with the hydraulic cooler leaking on early models. I think it was rectified by going to flexible lines to/from the radiator. Though, it's hard to tell from your description.
I have a gear drive with the only leak being where a rear remote hardline mates to the quick connect ag coupler. Probably just needs tightening, but hard to get at. So, for now I'm living with it. No big deal; only leaks when remotes are in used (fluid actively flowing), and then only a slow drip.