Alice frame jiggling

Random thread, but I just mounted my pack to an alice frame with spacers, its bolted in and everything, double nuts holding them bolts in place, put it on, walked around in it, but I swear I’m hearing/sorta feeling some shaking/jiggling. So far there’s no sign that its gonna fall apart, everythings sturdy, I’m using threaded spacers as well. So is it normal for there to be some slight shaking? Like I said theres no sign its gonna come apart but its still nagging me.

Extra context: Its a Ben of kent kit (It actually arrived, I know, shocker) a rothco frame, and 3D printed threaded spacers and M8 bolts with 2 nuts holding it in place to the motherboard

Mine does that too. I traced mine to the pop rivet at the top of the frame on the cross section coming loose. Maybe check that.

I had a similar issue with a recently purchased frame from ebay. I was able to replace the central top rivet and it solved the shaking.

Great. I’ll try it out.