The truck shaft being lowered towards its bearing sleeves in the cross boxes. Note the opposing slants of the tops of the cross boxes: We thought this might cause some assembly problems, but this was unfounded. The shaft was simply pivoted a bit as it was lowered, and the ring gears rolled away from each other (with small jacks acting on the ring gear retaining studs) in order to draw the shaft down to seat into its bearings. A bit of nudging with a 4 by 4 was necessary, but no drastic pounding was necessary.

Photo by Rick Brigger.