I also did some closer inspection of my two main attachments; rear mower and boxblade. As it turns out, they have almost identical width at the 3PH attachment points. Big difference is that the box blade has removable pins, and the mower has fixed pins. If I could convert the mower to removable pins, then I could do quite well with the 3PH as it works now. Wouldn't have to adjust the width one bit....

The GlueGuy