The nuts Jim had come loose were not on the rods but rather the ones on the car and that is from having other arms on and off as much as he did and not because he installed these. If you do it per the book, the nuts are all supposed to be replaced when anything is done that requires their removal. Most of the time, it's fine if they've only been off once or twice but any more than that and it's an invitation for them to come loose over time. The alternative is to use loctite on all the fasteners which is good practice anyways.

Take care