Truck with 32,496 miles began to shift in a strange manner, the engine then shutoff with no warning while traveling at highway speeds. The truck shifted into neutral and I was able to coast to the side of the road. I had the truck towed to the dealer and they found that the oil pump had failed and that it spun the 6 and 7 rod end bearings and the number 4 main bearing. The truck has the L87 6.2 liter V8. The engine stopped on 12/29/2024 and the truck was towed to the dealer. The truck was at the dealer until 3/28/2025. The truck was at the dealer for this amount of time due the GM having a national back-order on the engine.