[mkaresh]

Thanks for the info, I hadn't realized this. This makes most of the 986s in the survey single-row cars--unless the bearings were upgraded / replaced with something else. With over 200 cars involved, we've had one reported failure in the past two years--to a car with an upgraded bearing. My sense is that they're not likely to fail after a certain number of miles, and upgrading the bearing reset the clock.