Perfect fit for my 2012 Ram 3500 SRW 4x4. Accidentally bought a fake hub assembly that had a Moog part number in the name and was bad from the start. This time I ordered a real Moog hub. Eligible Prefect. Follow the correct axle nut tightening procedure and you'll be spot on. The truck rolls down the street like new. I never realized how much noise my old jack made. Right now all I can hear is my tires rolling down the street. Smooth as glass. Now let's see how well it holds up.