For years, both transmission and engine rebuilders have struggled with the problem of crankshaft thrust bearing failure. In most cases it becomes a battleground, with both parties throwing rocks at each other. To compound this problem, many so-called "experts" have offered explanations that have no basis whatsoever as to the actual cause. Many of these explanations have simply fanned the flames, causing most of these cases to end up in court, with the truth still lingering in the background. In this "Truck" edition of Gears, ATRA, AERA (Automotive Engine Rebuilders Association), ASA (Automotive Service Association), PERA (Production Engine Remanufacturers Association) and AE Clevite have joined forces to finally offer solutions that are not only based on fact, but also cover many of the misconceptions that have found their way into the industry. I would like to offer a special thanks to Dave Hagen of AERA, ED Anderson of ASA, Roy Berndt of PERA and John Havel of AE Clevite for their contributions and efforts toward this cause.