Sorry - I don't agree about the chains they will certainly increase traction but will unnecesarily chop up the terrain just what anti 4x4 campaigners luv.

But honestly a good set of offroad tyres would have seen you walk straight through that (even without lockers) looking at those pics. Tyres make a massive difference offroad as do lockers but always sort the tyres first then compliment them with traction aids.
Not being a smart ass here but my truck would just idle through that open diffed with the Simex's.

I just luv my "clacker Jabber".................