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My axle code is 3H, which is the 3.31 EL axle (3J is the 3.55 EL axle). I also have the HCTT package, so I know I have the Dana M275 axle, which looks exactly like yours.
Also, the 10.5 is the Sterling axle, 10.8 is the Dana M275 and the 11.8 is the Dana M300.
So no, you don’t need the friction modifier. Just 3.6 quarts of 75W140. Also, the bottom right bolt is the drain bolt. But before you drain it make sure you can remove your fill plug first. I just did mine about a week ago.
This is answered but I noticed something poking around under mine when I too was trying to figure this out: The cover says FoMoCo on it. but if look just to the left (if you're at the rear of the truck and looking forward, the driver side shock mount is stamped with "DANA" as well, maybe this will help someone:
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.
