Originally Posted by sailingdog
I wasn't saying that they would vary within a standard production line... but if the boat, like my friend's Alberg 30, has been re-powered, the shaft and such may not be the same diameter as the original.
I'm not disputing that there are cases where reshafting to a different size has occurred, but these cases are definitely the exception, rather than the rule. I've replaced enough zincs to know what most common production boats are going to need without looking and I can't think of very many instances where I came upon one that had a shaft size that was not standard for that particular model.
BTW, I've had a third confirmation on the 1 1/8" diameter (I went to the Newport owners web site and e-mailed every listed owner of a Newport 41.