Its the on they fitted to the range rover for something like one year B'reg if I remember right. Its an LT77 with a long bellhousing and the gear leavers are the correct way around to go strate into a defender, unlike the later boxes which are the same as the discos.
I used this one having the long nose and not the original one to push the engine foewards like the 300Tdis, so that ther was space for the exhausts without bodgificting the footwells like so many people do and there is some where to put the air cleaner when I get that far.
Mark