Either way, the hilux diff is a great option. Especially if you are doing track work as being a banjo type arrangement it is alot easier for the 'averege joe' to change the ratio. Sailsburys req an experienced touch unless you have another housing that is good to go. And as pointed out before they are equal in weight to a large BW give or take stuff all grams. But you have the added bonus of cheaper detroit lockers, air lockers, readily available spares and a better lsd arrangement (clutch instead of cone)