Thread: Is rear diff lock necessary?

Originally Posted by rugerman

Have you done that yet ? So far I've only used 4H in my Triton when I drive on the beach but have wondered if it's ok on the road. Does using 4 wheel drive on the road use more tires since the front are now "powered" so to speak ? ( I think that used to be a thing ?). When I need new tires I am thinking about some sort of duel purpose ones so if I do drive in a bit of mud the treads don't fill up like the current road tires do.

Important point to clarify here is I think he's referring to Tritons with the super select 4wd-II, not the easy select 4wd versions.

The super select have a 4h (awd) option in addition to 4HLC and 4LLC, where the former has the centre diff open (like a Subaru awd) and the two LC options lock the centre diff. Can drive on open rode with a centre diff open, but not with it locked (locked = LC for the super select versions of Triton or 4H for everything else)