In the attached picture I made the three u-joint subassemblies flexible in an attempt to position all the parts between the steering column and the steering rack. When done, I clicked on them and set them back to rigid, but they revert to their original undeflected shape. Then I tried applying a fixed constraint to one of them but the entire assembly fills up with constraint errors. As it is, the whole thing is unconstrained and it is too easy to pull it out of position if the wrong thing is grabbed by mistake. I'm moving from SW2006 to SW2020, so this is a new feature I am trying to learn.