chris,
i think 90 wt is too thin for the steering box, the original stuff in there would have been like lard on a cold day "self leveling grease"
but i did like you
however before assembling i studied those threads and the bushings and the smaller adjustment bolt thing on the side, and made modifications so that i could fill mine up with 80 wt oil and it doesn't leak anywhere now
the next one i do, i'll just try to find the right stuff to put in it, but i'm probably still gonna seal the thread leaks again to keep dirt out.
-s
