Actually I've seen this sort of thing happen a few times. I don't know why these manufacturers can't go by stock dimensions?? And another big problem is places will upload a picture of something and it looks right then when you get it it's nowhere even close to what it looks right in the picture. Right now Hughes has a picture of a PRW balancer with the same part # and it looks totally different. Looks right in the picture but who knows since it's just a picture. I hope to be going up there (Hughes engines) before the week is out and look at them in person and report back.