We do rebuild the front wheel bearings every time. Somebody just ran a Chump car event in a GTV6 without checking their wheel bearings...They DNF'd when the right front gave up.
That would be my car, but we *did* have the bearings checked and repacked prior to that event.
We're re-building both fronts AND bringing a set of spare spindles with bearings to our next event (Gingerman).
I firmly believe it was the banking that caused the problem. I can guarantee since we will have a set of spares on the trailer that they won't fail again!