Park Brake Cable Guide
 

Does anyone reproduce the plastic grommets that snap in the crossmember to protect the park brake cable? They are ALWAYS missing from these trucks and it’s a good idea to have them to save the cable and keep from wearing a groove in the crossmember. At this point, even if the truck has them, it is likely worn or cracked and needs to be replaced. The diagram below that came from the 1966 Shop Manual does show them. The Parts Book seems to indicate they came on 66-72 2WD trucks. The part number may have been 3894217 or 3894297.