diff fluid?

[sicki]

i am going to replace the diff fluid in my 99 tacoma prerunner (not TRD) 2wd. I have Neo Synthetic gear oil 75w-90HD that meets GL5 and MT-1. My owners manual says to use 90w. Is the 75w-90HD okay. I assume so but am very picky about what fluids i use and figured asking couldn't hurt.

thanks