Always, always remove your simulators yourself before taking it to a tire shop. It is very simple and easy to do and it is very common to get an inexperienced tire man that doesn't realize the frailties of the attachment nuts. Invariably they will strip the threads of the simulator nut when they reinstall them. You have to get the proper nut that has no chamfer on the starter thread. You will notice the proper nut is quite flat on the side that starts onto your stud. You do not need to alter the wheel nuts, nor should you, to make that work. This is what you need, but make sure you get the right ones for your studs. Lazydays has people at a phone desk for questions..https://accessories.lazydays.com/dicor-v195p7ejn-enclosed-jam-nut-17-0020