The company that manufactured them is an Australian company called Thomas winches, they changed their name to Winch Industries and then Powauto. They are now called Gears and Winches but I am sure they do not produce these winches anymore.The ones fitted to the 4x4 and 6x6 were a military specification designed from the current 8000lb pto and electric versions. They are a very strong worm geared self locking winch which will last you a lifetime if you keep it serviced properly.
