by DaveC » Thu Apr 16, 2015 11:30 am
Joe, I have been told that the frame anti theft codes were introduced sometime in the 62 model year and the lower tree codes were introduced in 1968 with the incorporation of the fork lock bracket. These are independent but recorded as part of the factory build data, which includes VIN, belly numbers, frame manufacturing code, as applicable frame and tree security codes, tire manufacturing data, color and ship to dealer.