Is there any way to determine the Build Date or Serial Number for an Allison LCT1000 6 speed in a 2010 GMC Sierra? The VIN # is 1GT4K1B62AF107097 (This is the title number, but the tag on the truck is missing the last 7 --worn off or didn't print). I'm asking because the cheap stick on tag is missing from the transmission (great going GM, saved a nickel by eliminating the metal tags)