Factory Axle
Senior User
Joined: Feb 2004
Posts: 314
Likes: 0
From: Chesapeake VA
If you're asking about the gear ratio, it's either 3.55, 3.73 or 4.10 depending on the trim package and whether you get the heavy duty towing option. My Lariat has a 3.73 (limited slip is an option I went for). It's 4.10 for the heavy duty towing package, and I believe that 3.55 is standard for the STX and XLT models, 3.73 for the Lariat and FX4 models.
