I've got a viscous coupling from my 110 3.5 V8 Carb going spare. The book says it's ERC5708, but LandroverWorkshop says that's from a 2.25 petrol. I've had a quick count of the pots and mine is definitely a V8 (as confirmed by petrol receipts!). I can send you piccies if that's any help (coupling - not the engine!)? I've also got an alternator with knackered bearings, but unless you want a service exchange it's bugger-all use to man or beast!