Job Profession

I forgot to put in; I was a gm line mechanic in 1968 to 69 (when did it change to tech? when computers came in?) . And the flat rate on a turbohyromatic 400 came in..Even gm had no clue to fix it.
gave you 4 hours for a 4 day job, of building, testing, take it back apart. 4 times.