I have a 1974 Chevy C10, molested for over 40 years so not sure about correct parts. The front pillar trim by the windshield and door is ill fitting and the mount holes are breaking out so I decided to replace both right and left. I am unable to find these parts for trucks of 1973 and 1974 vintage. Anybody know where to find and if not what gives?? Thanks for your help as usual!