* K10: Generally had a lighter-duty chassis and suspension components. This meant a lower GVWR, indicating it was designed for lighter loads and less demanding tasks.
* K20: Boasted a heavier-duty chassis, stronger axles, and a higher GVWR. This signified a greater payload capacity and the ability to handle heavier loads and more strenuous work. It often came with more robust components to handle the increased stress.
While the exact GVWR varied slightly depending on options and configuration, the K20 consistently had a significantly higher GVWR than the K10. This difference resulted in variations in axle ratios, suspension components, and potentially even engine options, with the K20 often offering more powerful engine choices. Visually, distinguishing them might be tricky without looking at specifications or build sheets; some visual cues might include heavier-duty suspension components, but the differences were subtle in 1969.