2004 Ford Territory vibration

I recently noticed a report in Ask Smithy about a vibration in a 2004 Ford Territory. Mine also has a vibration, and I too have replaced the discs, tyres, rear shockers and I have had a wheel alignment and balancing done as well. It started at 40,000 km, and at 107,000 it's still there. It shakes at the wheel at 60-70 km/h, and at 100 km/h it is undriveable. There have been times I have needed to pull over it's so bad. Ford has told me it could be a number of things, but they don't know what the problem could be. I even rang the Ford Customer Assistance and they were no use at all. The report in Carsguide said it was the slight wear on the mounts. Would changing the mounts fix it?