Hi john you should have absolutely no problem with the atf , in the trans or the transfer , seeing as how you have a 5spd no tod either , the only thing you wany to watch is the the tranny is not overfilled or the trans fer case , when it runs out the fill hole cold that is it , atf grows as it gets hotter and it could dribble out the breathers , only reason isuzu didn,t like atf it has very little noise deadning quality, but high temp capability and good lubricating quality and it will keep the trans clean , atf has a high content of detergent in it , unless you are towing a heavy trailer a long time and really workin gthe trans you will, be fine Jerry