Rod,
I do not know what part this is. I described the symptom (grinding noise) to a post war repair person and he stated that the most probable cause was a plastic gear in the drive mechanism that regularly fails. He stated this is a common failure for this engine and a long term fix is to replace that bad plastic part with a replacement metal part. He stated this part was metal in earlier trucks but the plastic one was added as a cost savings measure. I should have bought the parts from him at the time.
Since he stated it was a common problem I was hoping someone would be familiar with the issue and know what part I need to buy.
Ron
