Upper idler pulley
So I went to change out my upper idler pulley as there seems to be some slight noise coming from it when running. I picked up the durlast 231523 from autozone, but when I took the stock pulley out it was larger in diameter then this durlast replacement part. This can't be the right replacement part, it's close but just a bit too small in diameter. What are my options for a replacement pulley? Who has the correct one?