I have a question for you folks who are familiar with the 2006 Wrangler. According to my service manual, Jeep recommends 80W-90 gl-5 for the front and real differentials. Now I also have the Haynes manual (which I find is terribly incomplete, but that is another thread...) which says to use 75w-90 gl-5. Many folks have also recommended the later (75W) but I am unsure and I like to follow manufacturers guidelines.
This is a 2006 wrangler x that is at this time used for paved roads, very off roading takes place (that will be in some time).
One more questions, the allen bolt for the NP231 transfer case is a 10MM allen socket?