Sorry to hear of your failure, I'm glad you didn't get hurt and the car didn't get hurt worst The first time I saw a race axle break like yours was Mark Williams in a GM 12 bolt at Orange county back in the 1970s or 1980s, Mark Willaim use to sell lifetime guarenteed axles and that was one of them. Mark Williams overnighted a new axle to the track for that racer for no charge, I'm sure they didn't pay for the body damage A freind of mine bought a older NHRA stick shift stocker that had a set of Mark Williams 30 spline axles in the 8 3/4, he switch the third member and saw that the left axle had started twisting, around one spline. He called me and I told hime to swap it over to the right side It broke off at the next race Mark Williams told him to never swap axles after running them, it messes up the grain in the steel, or something like that I've broke, twisted off, two stock axles drag racing, both twisted off in the splines where it came out of the posi units, both where left axles