Seatbelts?
I noticed that they did not have seatbelts in their truck...
Is this a goof or were they 'optional' back then?
Seatbelt laws for mandatory use didn't happen until 1984 in the USA, with New York being the first.
Most states followed suit within approx ten years, except for New Hampshire which still doesn't have a seatbelt law!
https://en.wikipedia.org/wiki/Seat_belt_legislation_in_the_United_States
RIP Ian Richardson (1934-2007) http://akas.imdb.com/name/nm0007183