I'm under the impression that the US spec. 80 series are full time 4wd. If this is true does the Japanese Spec 80 series (HJD80 or 81 is it?) have full time 4wd? If it does what are your thoughts on this system? Does your fuel milage drop because of this? Anyway, please correct me if I'm wrong and let me know your 2 cents. 
