Not to cast aspersions on your measuring skills. Never heard of a 1" OD cutlass bearing. My 73' 27 had an 1.25" OD and so does my 87' 28. How certain are you? I've attached a photo of my 28 cutlass bearing. Does your look like it?
Aspersions would have been warranted, but really to my boat yard folks. Upon further review, conversations with a couple of manufacturers, the folks who build and sell the Strut Pro., and just thinking about it, I thought this was pretty much impossible. No way to build a bearing with only a 1/8 inch thick wall. So 15 minutes of sanding down the strut revealed, tada, the fact that the bronze part of the bearing and seam was, in fact, there, just covered in I have no clue how many years of buildup, and was, in fact 1.25 inch od. This after two mechanics looked at it and measured it. So, thank goodness for skepticism, the helpfulness of the manufacturers, this forum, the Strut Pro folks, and sand paper. The Strut Pro guy was awesome, he said "Ï don't want to be rude, but you have to be wrong". Very happy to be wrong. New bearing ordered.