Yes it did not need replacing...but the bushings did...Check the markings on the bolt's head, the one from eBay is not common. You definitely want to replace the bolts, there is most likely some rust on those threads already and the last thing you want is one of them snapping when you hit a pothole at high speed. Those should be grade 5 or 8.
I believe you are the first person to lift a PF and to replace these bushings (by yourself) so I doubt anyone here can help you out in this process. You have your suspension and drive train components working at different angles than what they were designed for so the noises you are experiencing could come from any of these parts. If I were you I'd spend more time trying to identify the source before spending more money, I believe the steering rack didn't really need replacing, right?