Possible clutch damage after towing

[dom14]

You don't have to have the hubs locked, but you won't have the front wheels turning under power unless the hubs are locked.

Ok, cool. Obviously I learnt something valuable here. I can use 4L without locking the hubs to reduce the stress on the clutch and gearbox.
I think I'm also beginning to understand the purpose of the transfer box as well.