I went to NAPA and picked up a new radiator cap for my truck.Its a 58 GMC 250 with a 270, it has the original radiator.I got the part number that I needed on NAPA online and went and picked it up.Its a 7 pound like the one I had but it wont press down enough to screw on.Any ideas? What other numbers/brands do you use?
Thanks,
Jeremy