I managed to remove the front wheels and released the parking brake attachment from the rear of the hub. The parking brake was the problem as at least one of the cables was damaged. Wheels are now turning but will need to be more free. We need to remove the hub to do a proper clean up within and install new cables. We are not sure how to go about this and need some guidance. I have removed the end cap and half shaft on one side and this has exposed what looks like an oil seal but after this I am wondering what exactly holds the hub in place. Any comments?