Not sure. I had a 1972 LT-1 Corvette with a/c that still had it's original blue door sticker. One of the things that was different about it from a non-ac 72 LT-1 was the blue door sticker weights. The ac'd LT-1 had a slightly higher weight that included the ac components.Wasn't that GVW (gross vehicle weight) on the sticker?
Total maximum weight of vehicle, fuel, passengers etc.