There were a few studs that were OEM and buckled after 13 years of winter use when the area was exposed to severely corrosive salt, and many of them, the rims that these stays fit on were broken, but I had to make sure I could change flats if that happened. Using good tires and changing low profile has meant I haven't had to change a flat tire for decades, but who knows and the shops certainly like the bushings to match the lugs. Not sure why it says not to use electric shocks, I've used bothβ¦