FWIW.... I race as much as anyone or more. My car has all of 16 and a few race weekends already in 2017.. I made all of 2016 0n ne pair of hubs, zero replacemnets. I changed my first and oly one hub at Sebring in January. They started as 60 k USED hubs, we blueprinted and installed and torqued TO THE SPEC, not less.
Jim