Because the pawls or the supports didn’t break. Did they get damaged, don’t know, but we didn’t stock either.
Understood now.
For clarification when throwing it in park at speed the pawl ratcheted off the support and simply vibrated the governor valve and weights and usually freed them up. Towing in park with a loose car had the vehicle weight loading and unloading the support putting all the load into the pawl pivot/housing.
Rail car was the worst - since the vehicles were not loaded on an angle like truck transport.
