[londonsean69]

A lot of people over on Locostbuilders are using the Landrover Freelander diff for BECs, as it's about 9kg lighter, or something like that.

Probably best to do a search over there as a lot more people are building a variety of stuff, including loads of BECs

A few links to get you started;
http://www.locostbuilders.co.uk/view...php?tid=112553
http://www.locostbuilders.co.uk/view...php?tid=118881
http://www.locostbuilders.co.uk/view....php?tid=98806