Canadian Poncho in Texas? long way from home...
I'm refering to redrilling a 168 12v flywheel, not the 139...
You can't use the 139 with a 12 volt starter anyway.
In other words, if you can get a 55-62 flywheel that has a smaller plate, you could redrill that.
You shouldn't really need to do that though, it's the optrion of last resort.
Just to round out the discussion,
If you wanted to keep the 6 volt starter and 139 tooth flywheel, they did use an 11" 9 bolt setup for a couple years before switching to 12 volts, but they are a little harder to find. If you were to do this, I would recoomend redrilling it to use the later 6 bolt pressure plate instead as they are cheaper and easier to get. I've had problems in the past with the way they rebuild those 9 bolt plates.
http://www.oldchevytrucks.com/cgi/htmlos.exe/start.htm
