If the dot inspection is like our safety, there is no need to check that....you don't even pull the Cali person unless you can measure the pads. End of the day, unless your going to drill a new hole in the actual spindle, drilling out a new nut is no safer, and wouldn't allow for any kind of fine tuning for bearing set. If you don't run this kit, it doesn't matter to you...seems to be a lot of us that do, and I would imagine a mass majority are running the nut backwards...I haven't had issues or heard of any, might not be exactly right, but in reality the nut still can't turn, so it's not really any less safe