thats just the shifter assembly. Should be able to get one off any first gen 80-86 4x4 d50 or mighty max, and im willing to bet any second gen will work also. Pull those 4 bolts off and go to a junkyard, or try 4x4wire or even car-part.com
Easy to get and cheap part. Just use rtv to seal it up when you put the new one on.
88 cordia turbo 87 Mirage turbo hatch
87 Montero swb turbo, 1987 Minicab van Supercharged
86 mighty max 4x4
84, 85, and 86 lancer ex1800 turbo
65 Debonair Deluxe