Here is proof that my original information was wrong. Here is a GMC 6v 139 tooth flywheel with 6 crank bolt holes. When did they start using 6 bolts? If I had known this my pickup would probably still be 6v. \:D Picture lifted from eBay. \:\(


Last edited by Beater of the Pack; 09/12/13 12:53 PM.
"I wonder if God created man because he was disappointed in the monkey?" Mark Twain