The 70 series runs part time 4wd, which is alien to newer series Landcruisers. Basically the front drivetrain disconnects at the transfer case (which is also known as the centre diff on full time 4wd systems). On the road, it becomes a RWD. When you select 4wd on a part time system the transfer case acts as a locked centre diff.scubadec said:Forgive my innocence, but what are electric freewheeling hubs? And what do they do?