Nahh, not only can I not sleep I am having trouble reading. LOL!!
Ok, sorry can't help you then, the ZD30 will be different to the YD25. No idea why I thought you had a D40, my apologies. Yes it was an old one, and I am yet to buy the silicone oil I need for it, but I should get my finger out because the current viscous hub (bought from Brett's Trucks at Tuggerah NSW) has done something over 150,000km and is still going strong - but who knows for how much longer.
Ok, sorry can't help you then, the ZD30 will be different to the YD25. No idea why I thought you had a D40, my apologies. Yes it was an old one, and I am yet to buy the silicone oil I need for it, but I should get my finger out because the current viscous hub (bought from Brett's Trucks at Tuggerah NSW) has done something over 150,000km and is still going strong - but who knows for how much longer.