The U.S auto industry did "metrify" eventually because of imported parts.
On Friday, September 15, 2023 at 08:29:15 PM EDT, OldToolmaker via groups.io <old_toolmaker@...> wrote:
I remember back in the fifties,sixtys and seventies the US was actively attempting to adopt the metric system and had a plan to accomplish same. However, the US could not muster up enough support from various industry factions to maintain traction. The auto industry and others bucked and consequently the attempt failed big time due to conversion costs. Somehow I lived through it all and only have a few scars to show for it. I had forgotten the debacle entirely until this discussion awakened my memory. Dick --