The listed U-Joint on Autozone's website has two different diameters listed for each axis. Is this right? I also have read of people having issues not being able to change these U-Joints. Last time I was under there I think I remember there being snap rings on them, which would indicate they are serviceable, correct?

Bearing Cap Diameter Axis 1 (in): 1.0620
Bearing Cap Diameter Axis 2 (in): 1.125