[xb-60]

Back in the '80s, I bought a Morris Mini for commuting to work. Its brake pedal effort seemed to be excessive, so I successfully added a remote booster sourced from an Alfa 1750GTV, which from memory was also a Lockheed unit.
The brake mod was quite successful, cutting the pedal force by around half.

Incidentally, the trip to work was 60km round trip, often with four of us, the shortest was over six feet tall, and the tallest was 6' 4". That's economical packaging!

Cheers,
Glen