Brakeline Hose ID variations

So i noticed my new "Sunsong" REAR brakeline hoses have different size openings.

https://imgur.com/a/DE3Vf12

Is this good or bad? They are stamped 2021 and 2023, the latter has the smaller hole. These are non OEM parts, i don`t think i could find original ones.

Looks very hard to drill out too...:crying:

Do you know that the OEM are not this same way? Maybe this is the vehicle manufacturer's way of implementing a static proportioning valve based on the weight bias of the vehicle?

-Rod

Do you know that the OEM are not this same way? Maybe this is the vehicle manufacturer's way of implementing a static proportioning valve based on the weight bias of the vehicle?

-Rod

I have the old hoses, and they have the same inner diameter. They are original since they are stamped the same month my car was made, 25 years ago. On the front brake hoses (new, non OEM ones), the holes are different size in the other end so where they hook up to the brakeline. So, anybody know anything about more on this?

My car does not have ABS btw, if there is a difference between non ABS and ABS car hoses. I have one of those LCRV units at the back.