The owner's manual on my 09 F150 says that rear gear oil never needs replaced. Whereas on my 02 Dodge, I believe it stated 50,000 or so. Personally, I would only change it If I suspected a problem. I know there's trucks out there with hundreds of thousands of miles, that have never been changed.


1954 3600 Chevy Truck
"The Fake Truck"
In the Stovebolt Gallery
More pix on Photobucket