Thanks for the reply.
So I must have over tourqued the plastic one then.
I'll pull it off tonight and put back the original alluminum one then.
But really, don't feel the need to replace it even after 105,000 kms?
I just figured want to get her another 100,000 more km;s problem free so I'd change it to a new one, just didn't realize they for for that much $$ ...

Thanks again ..