That’s what they’re for. They machine (remove ) metal to balance. Rather than adding a weight across from the holes. I wish I knew the part number and if it’s on the part somewhere It would suck to buy another one. Remove and install it and come to find out it was correct. But, I think Autozone will take it back if that’s the case. They sell a Dorman OE dampener for this engine for $100. Maybe, I ll give that a try. But, if I knew the part number was on it. That would be better. The other side of mine looks exactly like the blue one pictured above.
