Cheers guys. Thanks for the info.

I was thinking about something like in the link below. Just hoping for something slightly closer to home. Beggars cant be choosers though!

http://www.ebay.com.au/itm/252019420...%3AMEBIDX%3AIT

It seems to be drilled out for both patterns, so that would be handy if I decide to go turbo VN EFI a bit later on. Im hoping its as simple as that, but if not I have an old school gearbox and diff expert who works out of an old servo almost across from my house, so Im confident he'd be able to sort something for me.