I have searched, but it seems that a majority uses MT-90. I am currently using MT-90 in the trans and 75w-90NS in the diff.

Yup i just realized that i would be better off using 75w-90 in the diff.

Anyway, I am wondering if 75w90NS is better than MT-90 in the transmission? anyone with some feedback? or should i just stick to MT-90