ok tay i just looked it over and your gonna have to swap the tranny too. Let me know what you want for your mitsu engine and tranny dude, i don't want the transfer case just engine and tranny. But man there is a grip of info on 4.3 swaps just do a search if not PM Landraider he did the swap and used the TBI 4.3 which is the easiest way.

89 2 dr turbo diesel
89/88 "Backwoods sas"