What type dump trucks did GMC make during the years 1966-72?

During the years 1966-1972, GMC manufactured various types of dump trucks. Some of the models produced during this period included:

1. GMC C/K series: This lineup includes various models like C10, C20, C30, K10, K20, and K30. These trucks were available with dump truck configurations.

2. GMC F/C series: This series consisted of forward control trucks, also known as cab-over-engine trucks. They were designed for commercial use and had dump truck variants.

3. GMC 7500 series: These heavy-duty trucks were well-suited for construction and hauling purposes, and GMC had dump truck versions available in this range.

4. GMC 8500 series: Similar to the 7500 series, the 8500 series offered larger size and higher payload capacity. Dump truck configurations were available for these models as well.

It's worth noting that GMC offered various configurations and customization options, so the available dump truck models could vary based on the specific needs and requests of customers.