I have a 300tdi Disco with a 5 speed manual (R380) gearbox and have lost all drive. Why?
There are three possible problems. 1) The mainshaft spline has worn away and is not engaging in the transfer case input gear, (most common) 2) the centre has torn out the clutch friction plate or 3) the mainshaft has sheared just inside the rear of the gearbox. 1) and 3) will require a rebuilt unit.