This is a jack rod holder for a Datsun. I think it might be the rod holder for the 1968-1973 510 sedan, but I have to check a sedan to see if this is the right part. You will need 2 or 3 of these per car. The dimensions are 24 mm wide, and 34 mm long. The rod hole in the original part is about 12mm, but i made this hole to be 13mm to reduce the distortion of the rubber piece by the rod. I just made the file for this on 2019-6-15, and have not printed one yet.