all the MT75 boxes are like this, althoguh the T5 is the same shift pattern but with the pull harder to get it into reverse
the box should have a big lump on the back with a normal prop coming out the rear and one also coming out the front but underneath the drivers seat area
if you want the 4wd front you need to get it to mate to the zetec bottom end, as the front diff and intermidiate shaft sit in the sump
also, the 2wd came with 4 pots but the 4wd came with bigger single sliders, possibly due to the offset of the brakes etc and the need to keep the same wheel centre width