ROBBO11000

G'day lads and lasses. I'm relatively new to restoring cars (I've had a bit to do on some old kingswoods) but I am in the process of converting my ke70 into a speedway sedan. bigger engine, better gearbox, the works. I'm currently working out running gear for it and I'm looking at diff options. I've heard that the t18 diffs are a good option due their compatibility but I haven't been able to find any. my other option is a Hilux diff and as I want to do this properly I was chasing an opinion of someone more experienced. Could anyone tell me the best option (year, ratio) for a diff conversion. I'm pretty handy on the tools so I don't mind having to shorten it. I was just wondering where to start. cheers robbo