1978 Chevrolet C/K Diesel
The C/K Diesel was a popular workhorse that GM sold in the 1970s but it wasn’t the most reliable truck on the road. The C/K Diesel was not the most reliable truck on the road. The 6.5L diesel engine had a fair share of problems, which made it almost impossible to keep it on the road. This is why GM eventually switched to the Duramax diesel engines (via Diesel Place).
The diesel trucks of the 1970s and 80s were not the most reliable trucks on the road. But that was back when trucks were used for work, not as the luxury vehicles we have today. The C/K was the last of the authentic pickup trucks on the road, but it’s one that we wouldn’t touch with a 10-foot pole in its original configuration.