Quick, easy question

[drivethechevy]

my grandpa worked for a chevrolet dealer from 65-73 and when i bough my 68 c20 from a farmer near wear he lives i asked him if he knew if the armrest came in all trucks 67-72 cause my 68 doesnt have them and all other 67-72 chevys i had ever seen had armrests and what he told me was that it was an option armrests or not from 67-71 but in 72 in most casses aside from 1 tons armrests were always included