There were vin numbers stamped on the great majority of the 26 and 27 car frames. They are stamped on the top of the passenger side rail about at the midpoint. Will be an 8-digit number in the 13 to 14 million range. Don't know where the TT truck vin is stamped, but believe they were stamped starting in 26 just like the car frames.
Model T's first had their motor number stamped on the frame beginning on December 12, 1926. The motor for my T speedster project has a number from December 15, 1926 and I have a "no-number" '26 frame that I will back-stamp to match. Before that date the only type of serial number was on the motor block.
well I'll look closer at it, I was hoping I would have a # to register this when its done, long story on what it will be. I have one single T rail I thought we could use for another VIN but oh well.