Forum Discussion
RLS7201
Dec 15, 2016Explorer II
J-Rooster wrote:
90 weight oil will be fine in the rear axle!
NO! Ford specified 75W140 Synthetic for a reason. That Dana 80 is operating at it's upper limitations. It needs the best lubrication it can get.
Richard
About Motorhome Group
38,761 PostsLatest Activity: Nov 20, 2025