front and rear diff fluid ?
I am topping off my fluids before i leave on vacation. I have two bottles of rear axle lubricant but can't remember what one went to the front and what one went to the rear. One bottle is 75w-140 80w-90.
My owners manual says 75 140 is only for the fx4 level II rear axle but as I recall ford changed it and now uses 75w-140 in all rear axles. I think that is why i have both bottles but its been years since i had to top them off.