P is for Pain and Suffering
a greasy, smoky fog of SAE 80W-90 as the oil hit the hot straight pipes. Our one-and-only run at Mexico’s La Carrera Panamericana rally was over. Just. Like. That. Back home in the Northeast after a three-or four-day haul, my hobbled ’61 Impala limped off the trailer. It was obvious that the rear axle’s innards had devoured themselves. What wasn’t as obvious was the carnage I’d inflicted. I fished the differential carrier out of the front of the housing to discover a nice neat hole — a little larger than a quarter — blown through the cast-iron case. The pinion bearing had unraveled and the pinion gear started ramming into the ring gear, mortar-and-pestle style. During the violence, a tooth broke off the pinion gear and shot through the side of…