[venum14]

I have had this happen on two occasions only on the rear due to the torque applied to the drive pins. The pins 1/2"" O.D. are necked down for the 3/8" threads, at the neck down they are roughly .30" diameter creating a very weak link. My hubs had a shallow counterbore so that the 1/2" diameter was trapped to take the drive torque. They eventually failed.

I had one failure and figured it was a weak pin, some time later after an autocross I broke two more on the other side.

I went with ARP sprint car drive pins (made in USA). They will require machine work to the hubs and wheels. They are 1/2" threads (3/4" shank) and have a full radius at the thread/shank interface, absolutely bullet proof and it doubles the strength over the
weak stockers.

I know the stockers work for many applications, but I look at it from a high horsepower "drag race" perspective. You won't find any 3/8" threaded axle studs!!!

Good Luck