That's why I bought those straps with the clips on the hooks. When you hear that "click" you know it can't fall off.
When Tom came from Edmonton to pick up the black 66 Grande Parisienne from me years back, he had those along. The secure feeling those things give is great (coming from a guy who had a car roll back off the trailer when I was turning the truck and trailer around...)
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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles
1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
did he just roll it on the trailer, and think that was good enough?
Maybe he was hoping for an insurance claim?
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1970 Formula 400 Carousel Red on black (std) interior "no drivetrain option" car (same base drivetrain as GTO) 1:411 1970 Firebird Formulas originally sold in Canada