i recently got my tranny rebuild and the place that build it put the rack and pinion back in wrong and used the wrong nut . was driving on the freeway exited the freeway and thats when my wheels gave way. one was pointing str8 the other poitning inwards. I'm wondering where i can get these castle nut that goes for the steering arm at the wheel end. When to all the car places and they didnt sell them even went to the hardware store and they didnt have any. help me