A closer look under the truck revealed this. You are looking up at the bottom of a GM bellhousing that is no longer bolted to an M-35A1 Spicer 3053A five-speed transmission. The bellhousing bolts to the transmission with five bolts. While under the truck greasing things, we had glanced at the clutch and bellhousing and the bolts were still there. We had no reason to suspect they were loose, so we didn’t try to tighten them. And yet, 72 miles later, here we were: 800 miles from home and broken on the side of the road.