Hi all...Merry Christmas to all...my question concerns the pre-fix to the casting number on my 1946 Chevy ¾ ton pickup (GM 839770). I can't find out what the GM is for...I though the correct pre-fix was DA??? Not sure if this was a GM Truck motor that was used for a re-furb job? Any help would be appreciated.
John
Last edited by jkully; 12/28/2011 10:57 PM.
