Ford 7710, Ford 550, Ford 1910, Ford 4430, KD Forklift, Ford LGT17H, New Holland L255 Skidsteer
I don't know Mitsubishi, but the trans/hyd. fluid you currently use will do fine, but I would recommend 80w90 as it tends not to weep in warmer weather.
Don't know what Mitsubishi recommends either, but Daedong built (Kioti, Bobcat, & now McCormick) come with trans/hyd fluid in the front for break-in, flushing purposes then recommend 80-90W after 50 hrs. I would imagine these front axles are all pretty much the same unless it is Limited Slip or lockable.