Key Takeaways Historical Significance: The Cat 977D Traxcavator, produced from 1955 to 1960, was instrumental in post-war construction, setting new standards for efficiency and versatility in heavy machinery. Innovative Features: Equipped with advanced hydraulics and a powerful Caterpillar D333 diesel engine, the 977D offered impressive lifting capacity and operational efficiency. Collector's Value: The 977D remains a highly sought-after collector's item due to its...