Does anyone know the weight of either of these 2 quaife diffs?

http://www.quaife.co.uk/Honda-Civic-Del-Sol-VTEC-dohc-ATB-differen
tial

http://www.quaife.co.uk/Quaife-CD-axle-unit-and-drive-flange-for-chain-driven-cars

I would have thought that the quickest and most accurate way to acertain this information, would be to e-mail Quaife directly.
Not a lot of help, I know.....