Hi Andy,
Welcome to the VCCA's website!
A couple of folks have run into that problem before, including myself! ;-)
I used the site's Search function (with a search criteria of +flywheel +mark +u|c) and found a number of threads that touch on the subject of the flywheel position. Here are a few of those for your reading pleasure:
1.
Flywheel discussion during '28 engine rebuild. In 2017, I rebuilt the '28 engine in my '27 one ton truck (Lurch) and this post was in the middle of that build. Here's the beginning of that journey:
Resurrecting a '28 4 banger.
2.
Flywheel for a '28.
3.
Questions about a 1928 truckBTW, here are some hints and tips about using the website's Search function:
Search function tips.
Keep us posted about your journey with your truck! Add pics too!
Cheers, Dean