It states clearly in my 1999 and 1994 +8 handbooks as a CAUTION: If the vehicle is to be towed with the rear wheels in contact with the road and the engine not running, the propshaft should be disconnected.
The oil pump in the gearbox is engine driven and damage may result.
I recall reading a similar statement in my 4/4 Sport handbook.
I can vouch that the LT77 does not like to revolve when being told after destroying a gearbox on a Range Rover under tow.
