I have a 98 ram 1500. So i havent had it very long but used it some during heavy snow. The cad went out on me so i replaced it with a new one. 4x4 works great now...only problem is in 2wd it has a noise and vibration to it. When you get down to about 10 mph it sounds like an old worn out lockout or ujoint clicking. The ujoints appear mostly tight in front end though. I thought maybe my used cad wasnt unlocking fully so i pinned it to the 2wd side And i still get this noise. As soon as shifted to 4x4 side it stops. Im missing something just not sure what. Maybe wheel bearing bad?? Also when you slow to 10 mph and the noise is more pronounced if you steer to either side far enough it goes away?? Could it still be ujoint? Thanks for help either way