These are hard to find, and this is a perfect reproduction. I know there are a lot of questions about getting the right Idler arm. This part is listed as fitting both Power & Manual Steering systems which I thought might be a problem. It fit perfectly on my 73 Mustang with Power Steering. I've included three pictures if it helps others. One picture is of my old idler arm with this new one side by side for comparison. I know my old was replaced sometime in mid-80s so it was probably not OEM. The next two show the actual center line dimensions of the old and new Idler arms which is the critical dimension. They both are 5 inches. Hope this helps.