Somebody has had a go at that with a file thinking they were being clever.
it was an offical renault fix at one stage!
this. Bit of an extreme example though. I've trimmed a few, but only by a couple of mm just to stop the cup touching
The edges of the hole shouldn't make contact with the top cup anyway, it's the rubber mount underneath that locates the strut. will make little or no difference the hole being like that
What's the actual point in the top part then? Just to stop the strut from falling out when you jack it up?
it was an offical renault fix at one stage!
With the strut off the car I noticed the main rubber mount could move about despite the tiny strut bolt being tight.