Building a 360 with ARP main bolts
It's funny they say no one ever complained before. I read about this problem on another board over a year ago and the person called and complained and they had to send him 12 point nuts. A couple others chimed in and said they also had to call ARP and they sent them nuts. Sounds like they're just ignoring the problem. The last place I worked at was real good about doing things like that.