Any body know much about the chain diff in the GT1? How strong is it & what are the power torque limits? Would it be strong enough to cope with a turboed R1 or 'busa? Also what are the issues with fitting an electric reverse - MK do one for a Sierra diff, but not their chain diff? Finally I assume it's not an LSD - is it possible to convert to limited slip?

if its the gt1 chain drive dif its a quaiffe torque biasing unit, should cope with plenty of power, check with mk/quaiffe if you're really concerned.

Ned.