[wildbill8264]

I've been trying to decode the vin number on my '67 GMC short bed stepside. I'd really like some help with this. Every site I've tried online so far hasn't been any help because all the sites ask for 17 digit vin and my truck only has 15. I'd really like to know which engine/transmission and any other info about my truck that vin could provide. So any help with this would be great.