yup they are actually a decent 80s and up car if you know what your doing, they are clean, and you are able to build them a certain way. The frame stuff being talked about is only in the full size pre 77 stuff....
This is not true. The Diamond frame has a diamond hole. The triangle is a different frame all together. There is also a 4 leaf clover frame stamp on Pontiacs 😉
same location or different?
All of the ones I've owned and seen are in the same location. Front frame horns on the inside. If the core support is still in you many have trouble seeing it. I seen another stamp the other day on a 72 Bonneville. It was just a square. Might not mean anything but I've never seen one before. I didn't measure it but I will.