don't know only know what I posted. I assume they use the same boxes for all, a heavy duty printed box is expensive, I doubt they are going to print different ones.
I was born at night but it wasn't last night. They are 4140's and the boxes say 4340?
This was your earlier post
Not really true the reason they are 4140 which is what they always have been is material rating and capability. They are rated to 1000HP if your making more than that you need something different. Also China material rating is different that US. US 4340 is nothing like China 4340. Eagle conforms to US standards. Either way I have never seen one of the current steel cranks from anyone break without something else failing first. I know I will put these cranks up against any of the others out there right now for strength, quality and finish.
So they have always been 4140 but the boxes say 4340?