Related Problems of the 2006 Subaru Legacy

problem

Hub was replaced in June of 2019. Car was driven about 14,000 miles (estimate) since then. While driving down the road, I hard a noise on the front right tire. When I pulled the hub cap off, two bolts were sheared off, one nut was loose. I checked the torque on the remaining two bolts, and it was about 80 ft-lbs, which is what is specified in the manual. Since I torque all 5 in star order (twice) when I change tires, there is no change they were under or over torqued. Tires were changed twice a year by myself, so nuts went on/off four times since installing the hub. No other failures on any other studs, on two Subaru cars that I followed the same practices on. I used a press to press out the studs (as pictured), but due to a defective design, the studs can't be removed without pressing out the bearing and separating the halves. Additionally the replacement studs I bought are a larger diameter, and have a shoulder that would have protected against this failure. As such this looks like a defective design. It's not an oem replacement, it does not last a reasonable time, and presents a real risk of losing a tire at speed on a car. Manufacturer phone number as listed on amazon is disconnected. Their web site is broken, and does not allow "chat" to work. Their listed phone number refused to allow a connection unless the dialer states their age, which makes it sound like a scam number. They claim a 10 year warranty, but want me to call them to process. Apparently I cannot do so, as they have made it impossible.