(...) Put it simply there was and is no VIN on a TF or older truck, well and yes none on any up to vin inception (....)
actually you've got that a little garbled, as should be obvious from many posts above, there may be no "
VIN" [as currently mandated by the gubmint] on older trucks, but there was definitely a
vin on all vehicles GM produced [which got more complex with each series], and there is a line on any title document where you'll find whichever version of vehicle identification number is appropriate to the series year
Bill