Spare crank I wound up not needing. Casting #2680. Guessing by the hand written "notes" that mains and rods are both cut .010, but other than that I have no other info on it. I'll be more than happy to take any measurements for you. Surfaces have been coated in grease; that's how I found it. Was stored standing on end for who knows how long? Shipping extra, or happy to meet up somewhere.