Quote Originally Posted by Eric SDV6SE View Post
Just guessing here, but sounds like the transfer box (centre diff) may have failed. This is a clutched system, so a recalibration may work,unless the clutch has burned out.

Could also be one of the propellor shafts, but then you'd still have drive to the front or rear wheels.
Thanks Eric. I started another thread updating.
I made it back after a few winches and a snatch tow. It will drive in Rock Mode locking the centre diff.

After all the mud washed off the front left CV is busted which fits.