I am looking to replace front and rear dif and transfer case oil in my 2008 dodge durango. It has 35k miles and I will be doing a lot more towing in sometimes 3-4 days a week up to 5000 lb. I want to use Mobile 1 gear oil but have no idea what goes where. I see we have 75w90 and 75w140 available.
Thanks.
Thanks.