It is well worth looking at the wheel inserts. They do crack
and not easily visible when mounted on the car.
Watch out there are two different sizes!
They are easy to replace, carefully knock out the old ones.

Gently tap in the new, be careful to tap the insert straight and true in the whole. It helps if you have a suitable
mandrel, if you don't have one a socket of the desired size will do the job. Don't forget to give the hole a clean first.