It cost me $8 to have my 6V starter foot starter "rebuilt' at the local auto electric shop..= new brushes only after 5 years of 12V. So why go to all the trouble of changing it. More concern will be the heater fan which will run 300 mph on 12V.

1953 Chevy 5-window 3100
In the Stovebolt Gallery
More pix on Picturetrail

Dave
Engine & Driveline Moderator

If you can't make seventy by an easy road, don't go. ~~ Mark Twain